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Wenzhou Walmi Stainless Steel Co.,LtdNo.66 xinpu road, lucheng district, wenzhou city,zhejiang province, P.R. China.

Contact： Ms. Mia Wong

Tel : 0086-137 3873 1708

Fax : 0086-577 5657 3273

Email:mia@walmitube.com

PREQUALIFICATION

STATEMENT

International Sales Dept

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Integrity : Speak and act honestly to build trust.

Reliability : Put customers’ interests ahead of ours.

Professional: What we do, we do well.

Passion : Committed in heart and mind.

Care: Deep understanding and satisfied customers’requirements.

To exceed our customers’expectations with good quality and services.

To be the world’s most trusted supplier of stainless steel piping products.

Welcome to WalmiWalmi is a family of closely related companies, all engaged in the stainless steel pipingindustry. Providing stainless products that range from stainless steel pipes, tubes, butt-weldingfittings, forged flanges, tubesheet to valves and value-added services of piping-relatedproducts, including cutting, polishing, U-bending, beveling and many more.

Manufacturing, Stocking, Processing and Distribution of all stainless steel tublar products.

Our core values

Our mission

Our vision

To supply more jobs for women in stainless steel piping industry and encourage them toshape a better life. Walmi believes in the power of women and we are uniquely capable inhelping to fuel their success.

Our core business

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217. Warranty policy ··························································································

3. Application ································································································

4. Product Specification··················································································

5. Project Management ···················································································

6. Quality Control ·······················································································

CONTENTS

1. Who We are ····························································································

2. What We Do ······························································································

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We are manufacturer

We are stockist

Value-added services are provided

One-stop service for industrial stainless steel piping products

Wide in-stock inventory of stainless steel 304 and 316L seamless pipes &tubes in accordance with ASME/ASTM SA/A312. SA/A269 with dimensions andweights in accordance with ASME B36.19. ASME B36.10. Any quantity, Anywhere, we can delivery !

Custom production as per PO, producing the very tubes and fittings that meetcustomers’ requirements is our core business. We have 2 factories in Zhejiangprovince, which are specialized in stainless steel seamless pipes, tubes, fittingsand flanges.

Walmi is a full service international distributor of stainless elbow, reducer, tee,cross, cap, flange, blind flange, tubesheet, ball valve, check valve, gate valveand many other piping products. We truly are the one-stop stainless steelpiping service center.

Variety of value-added services of piping-related products are supplied,including U-bending, cutting, polishing, beveling, deburring, color coding, PEcoating, pipes welded with flanges, fittings and valves...Any size, Cut andReady fast!

WHO WE ARE

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Stainless Steel Pipe & Tube Stainless Steel U Tube

Pipe & Tube Boiler & Heat Exchanger TubeSeamless & Welded Straight & U typeRound & Square & Rectangle & Section 100% Stress RelievedAustenitic & Duplex & Super Duplex Stainless 100% Hydrostatic TestingPrecision Tube 100% Non-destructive Testing

Stainless Steel Butt-Weld Fittings Stainless Steel Forged FittingsElbow Cap Forged flanges and ringsTee Bend Forged tubesheet & baffleReducer Stub end Machining partsCross Drilling parts

WHAT WE DO

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Stainless Steel Hollow Bar Value-added service304 / 304L U-bending316 / 316L & 316Ti PolishingS31803／S32205 & S32750 BevelingOD. 32mm – 420mm Cutting

ID. 20mm – 300mm Welded with Flanges & Fittings

Stainless Steel Valves Stainless Steel Pipe StockBall valve 304 / 304LGate valve 316 / 316LCheck valve Seamless & WeldedGlobe valve No minimum order

WHAT WE DO

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Oil & Gas Processing

Petrochemicals

Chemical industry

Pharmaceuticals

General industry

Marine

Shipbuilding

Cosmetics

Food processing

CNG

LNG

Fertilizer production

Gas processing

Glass production

Oil refining

Paper production Breweries

Petrochemical processing Sugar

Subsea infrastructure Desalination

Subsea piping system Synthetic fibers

Sulphuric acid processing Pulp and paper

Waste incineration Modern architecture

Pesticides Water treatment equipment

The applications can be found more in the following:

APPLICATION

Walmi Stainless Steel pipes, tubes, butt-weld fittings, forged flanges, tubesheets, machingparts and other drilling parts are austenitic stainless light-weight steel pipes and accessorieswhich are always used at high temperature and general corrosive service, including extensiveapplications in the industries of Oil and Gas, Petrochemical, Pharmaceutical, Chemical andFood Processing.

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Products Standards

Walmi Material Test Certificate compliance to standard EN10204:2004 3.1

Walmi Stainless Steel Piping Products compliance to standards below:

Stainless Steel Seamless PipeASTM A312

EN10216-5

JIS G3459

DIN 17456

GB/T 14976

Stainless Steel Seamless TubeASTM A269

EN10216-5

JIS G3459

DIN 17456

GB/T 14976

Duplex Stainless Steel Seamless Pipe and TubeASTM A789

ASTM A790

Super Duplex Stainless Steel Seamless Pipe and TubeASTM A789

ASTM A790

High-alloy Austenitic Stainless Steel Seamless Pipe and TubeASTM A312

ASTM A269

SPECIFICATION

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Products Standards

Walmi Stainless Steel Piping Products compliance to standards below:

Stainless Steel Boiler, Super heater and Heat Exchanger TubeASTM A213

EN10216-5

JIS G3463

DIN 17458

GB/T 13296

Stainless Steel Welded PipeASTM A312

ASTM A358

ASTM A790

ASTM A789

Stainless Steel Welded TubeASTM A269

ASTM A358

ASTM A790

ASTM A789

Stainless Steel Butt-Weld FittingsASTM A403

ANSI/ASME B16.9M

Stainless Steel Forged FlangesASTM A185

ANSI/ASME B16.5

SPECIFICATION

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Products Grades

ASTM UNS EN DIN JIS GOST GB Remark

304 S30400 X5CrNi18-10 1.4301 SUS304 06Cr19Ni10 all sizes avaiable

304L S30403 X2CrNi19-11 1.4307 SUS304L 022Cr19Ni10 all sizes avaiable

316 S31600 X5CrNiMo17-12-2 1.4401 SUS316 06Cr17Ni12Mo2 all sizes avaiable

316L S31603 X2CrNiMo18-14-3 1.4404 SUS316L 03X17H14M3 022Cr17Ni12Mo2 all sizes avaiable

316TI S31635 X6CrNiMoTi17-12-2 1.4571 SUS316Ti 10X17H13M2T 06Cr1Ni12Mo3Ti some sizes avaiable

317 S31700 06Cr19Ni13Mo3

317L S31703 X2CrNiMo18-15-4 1.4438 SUSU317L 022Cr19Ni13Mo3

321 S32100 X6CrNiTi18-10 1.4541 SUS321 06Cr18Ni11Ti

310S S31008 X8CrNi25-21 1.4845 SUS310S 06Cr25Ni20

347 S34700 X6CrNiNb18-10 1.455 SUS347 06Cr18Ni11Nb

ASTM UNS EN DIN JIS GOST GB Remark

304H 07Cr19Ni10

321H 07Cr19Ni11Ti

316H 07Cr17Ni12Mo2

ASTM UNS EN DIN JIS GOST GB Remark

S31803 S31803 1.4462 022Cr22Ni5Mo3N some sizes avaiable

S32205 S32205 1.4462 022Cr23Ni5Mo3N some sizes avaiable

ASTM UNS EN DIN JIS GOST GB Remark

S32750 S32750 1.4410 022Cr25Ni7Mo4N some sizes avaiable

ASTM UNS EN DIN JIS GOST GB Remark

904L N08904

Other Grades can be offered on request.

SPECIFICATION

Corrosion Resistant Austenitic Stainless Steel

Heat Resistant Austenitic Stainless Steel

Duplex Stainless Steel

Super Duplex Stainless Steel

High-alloy Austenitic Stainless Steel

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Products Chemical

TP304 0.08 1.00 2.00 0.045 0.030 8.0 - 11.0 18.0 - 20.0 - - - - - -

TP304L 0.035 1.00 2.00 0.045 0.030 8.0 - 13.0 18.0 - 20.0 - - - - - -

TP304H 0.04-0.10 1.00 2.00 0.045 0.030 8.0 - 11.0 18.0 - 20.0 - - - - - -

TP321 0.08 1.00 2.00 0.045 0.030 9.0 - 12.0 17.0 - 19.0 - 5 × (C+N) min,0.70 max 0.10 - - -

TP321H 0.04-0.10 1.00 2.00 0.045 0.030 9.0 - 12.0 17.0 - 19.0 - 4× (C+N) min,0.70 max 0.10 - - -

TP316 0.08 1.00 2.00 0.045 0.030 10.00 - 14.00 16.0 - 18.0 2.00 - 3.00 - - - - -

TP316L 0.035 1.00 2.00 0.045 0.030 10.00 - 14.00 16.0 - 18.0 2.00 - 3.00 - - - - -

TP316H 0.04-0.10 1.00 2.00 0.045 0.030 10.00 - 14.00 16.0 - 18.0 2.00 - 3.00 - - - - -

TP316Ti 0.08 0.75 2.00 0.045 0.030 10.0 - 14.0 16.0 - 18.0 2.00 - 3.00 - - - - -

TP317 0.080 1.00 2.00 0.045 0.030 11.0-15.0 18.0-20.0 3.00-4.00 - - - - -

TP317L 0.035 1.00 2.00 0.045 0.030 11.0-15.0 18.0-20.0 3.00-4.00 - - - - -

TP347 0.08 1.00 2.00 0.045 0.030 9.0 - 13.0 17.0 - 19.0 - - - 10×Cmin,1.00max - -

TP310S 0.08 1.00 2.00 0.045 0.030 19.0 - 22.0 24.0 - 26.0 0.75 - - - - -

S31803 0.03 1.00 2.00 0.030 0.020 4.5-6.5 21.0-23.0 2.5-3.5 - 0.08-0.20 - - -

S32205 0.03 1.00 2.00 0.030 0.020 4.5-6.5 22.0-23.0 3.0-3.5 - 0.14-0.20 - - -

S32750 0.03 0.80 1.20 0.035 0.020 6.0-8.0 24.0-26.0 3.0-5.0 - 0.24-0.32 - 0.50 %Cr + 3.3 × %Mo +16 × % N ≥ 41%

N08904(904L) 0.02 1.00 2.00 0.040 0.030 23.0-28.0 19.0-23.0 4.0-5.0 - 0.10 - 1.00-2.00

Nominal chemical composition

Ti Nmax

Nbmax

Cumax Others

SPECIFICATION

Grade Cmax

Simax

Mnmax

Pmax

Smax Ni Cr Mo

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Products Sizes

W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m

1/8 10.3 --- --- --- 1.24 0.28 0.28 1.73 0.37 0.37 2.41 0.47 0.48

1/4 13.7 --- --- --- 1.65 0.50 0.50 2.24 0.64 0.64 3.02 0.80 0.81

3/8 17.1 --- --- --- 1.65 0.64 0.64 2.31 0.85 0.86 3.20 1.11 1.12

1/2 21.3 1.65 0.81 0.81 2.11 1.01 1.02 2.77 1.28 1.29 3.73 1.63 1.64

3/4 26.7 1.65 1.03 1.04 2.11 1.29 1.30 2.87 1.70 1.71 3.91 2.22 2.23

1 33.4 1.65 1.30 1.31 2.77 2.11 2.13 3.38 2.53 2.54 4.55 3.27 3.29

1¼ 42.2 1.65 1.67 1.68 2.77 2.72 2.74 3.56 3.43 3.45 4.85 4.51 4.54

1½ 48.3 1.65 1.92 1.93 2.77 3.14 3.16 3.68 4.09 4.12 5.08 5.47 5.50

2 60.3 1.65 2.41 2.43 2.77 3.97 4.00 3.91 5.49 5.53 5.54 7.56 7.61

2½ 73 2.11 3.73 3.75 3.05 5.31 5.35 5.16 8.72 8.78 7.01 11.52 11.60

3 88.9 2.11 4.56 4.59 3.05 6.52 6.56 5.49 11.41 11.48 7.62 15.43 15.53

3½ 101.6 2.11 5.23 5.26 3.05 7.49 7.54 5.74 13.71 13.79 8.08 18.82 18.94

4 114.3 2.11 5.90 5.93 3.05 8.45 8.51 6.02 16.24 16.34 8.56 22.55 22.69

5 141.3 2.77 9.56 9.62 3.40 11.68 11.75 6.55 21.99 22.13 9.53 31.28 31.48

6 168.3 2.77 11.42 11.50 3.40 13.97 14.06 7.11 28.55 28.73 10.97 42.99 43.27

8 219.1 2.77 14.93 15.02 3.76 20.17 20.30 8.18 42.98 43.25 12.70 65.30 65.72

10 273.1 3.40 22.84 22.99 4.19 28.07 28.25 9.27 60.92 61.31 12.70 82.38 82.91

12 323.9 3.96 31.56 31.76 4.57 36.35 36.59 9.53 74.63 75.11 12.70 98.45 99.08

14 355.6 3.96 34.69 34.91 4.78 41.77 42.04 9.53 82.15 82.68 12.70 108.48 109.18

16 406.4 4.19 41.98 42.25 4.78 47.82 48.13 9.53 94.21 94.82 12.70 124.55 125.35

18 457 4.19 47.26 47.56 4.78 53.85 54.19 9.53 106.23 106.91 12.70 140.56 141.46

20 508 4.78 59.92 60.30 5.54 69.34 69.79 9.53 118.33 119.09 12.70 156.69 157.70

22 559 4.78 65.99 66.41 5.54 76.38 76.87 --- --- --- --- --- ---

24 610 5.54 83.42 83.95 6.35 95.48 96.10 9.53 142.55 143.46 12.70 188.96 190.17

30 762 6.35 119.53 120.30 7.92 148.77 149.73 --- --- --- --- --- ---

sch5s sch10s sch40s sch80s

Norminal Pipe

SizeDN(in.)

OutsideDiameter OD

ANSI/ASME B36.19

SPECIFICATION

Norminal Wall ThicknessNorminal Wall Thickness

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Products Sizes

W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m

1/8 10.3 --- --- --- 1.24 0.28 0.28 --- --- --- 1.45 0.32 0.32 1.73 0.37 0.37 1.73 0.37 0.37 --- --- ---

1/4 13.7 --- --- --- 1.65 0.50 0.50 --- --- --- 1.85 0.55 0.55 2.24 0.64 0.64 2.24 0.64 0.64 --- --- ---

3/8 17.1 --- --- --- 1.65 0.64 0.64 --- --- --- 1.85 0.70 0.71 2.31 0.85 0.86 2.31 0.85 0.86 --- --- ---

1/2 21.3 1.65 0.81 0.81 2.11 1.01 1.02 --- --- --- 2.41 1.13 1.14 2.77 1.28 1.29 2.77 1.28 1.29 --- --- ---

3/4 26.7 1.65 1.03 1.04 2.11 1.29 1.30 --- --- --- 2.41 1.46 1.47 2.87 1.70 1.71 2.87 1.70 1.71 --- --- ---

1 33.4 1.65 1.30 1.31 2.77 2.11 2.13 --- --- --- 2.90 2.20 2.22 3.38 2.53 2.54 3.38 2.53 2.54 --- --- ---

1¼ 42.2 1.65 1.67 1.68 2.77 2.72 2.74 --- --- --- 2.97 2.90 2.92 3.56 3.43 3.45 3.56 3.43 3.45 --- --- ---

1½ 48.3 1.65 1.92 1.93 2.77 3.14 3.16 --- --- --- 3.18 3.57 3.60 3.68 4.09 4.12 3.68 4.09 4.12 --- --- ---

2 60.3 1.65 2.41 2.43 2.77 3.97 4.00 --- --- --- 3.18 4.52 4.55 3.91 5.49 5.53 3.91 5.49 5.53 --- --- ---

2½ 73 2.11 3.73 3.75 3.05 5.31 5.35 --- --- --- 4.78 8.12 8.18 5.16 8.72 8.78 5.16 8.72 8.78 --- --- ---

3 88.9 2.11 4.56 4.59 3.05 6.52 6.56 --- --- --- 4.78 10.02 10.08 5.49 11.41 11.48 5.49 11.41 11.48 --- --- ---

3½ 101.6 2.11 5.23 5.26 3.05 7.49 7.54 --- --- --- 4.78 11.53 11.60 5.74 13.71 13.79 5.74 13.71 13.79 --- --- ---

4 114.3 2.11 5.90 5.93 3.05 8.45 8.51 --- --- --- 4.78 13.04 13.12 6.02 16.24 16.34 6.02 16.24 16.34 --- --- ---

5 141.3 2.77 9.56 9.62 3.40 11.68 11.75 --- --- --- --- --- --- 6.55 21.99 22.13 6.55 21.99 22.13 --- --- ---

6 168.3 2.77 11.42 11.50 3.40 13.97 14.06 --- --- --- --- --- --- 7.11 28.55 28.73 7.11 28.55 28.73 --- --- ---

Norminal PipeSize

DN(in.)

Outsi

deDiameter D

Norminal Wall Thickness

ANSI/ASME B36.10 I

sch30

SPECIFICATION

sch10 sch20 sch40 sch60sch5 STD

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Products Sizes

--- --- ---

W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m --- --- ---

1/8 10.3 2.41 0.47 0.48 2.41 0.47 0.48 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

1/4 13.7 3.02 0.80 0.81 3.02 0.80 0.81 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

3/8 17.1 3.20 1.11 1.12 3.20 1.11 1.12 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

1/2 21.3 3.73 1.63 1.64 3.73 1.63 1.64 --- --- --- --- --- --- --- --- --- 4.78 1.97 1.98 --- --- ---

3/4 26.7 3.91 2.22 2.23 3.91 2.22 2.23 --- --- --- --- --- --- --- --- --- 5.56 2.93 2.95 --- --- ---

1 33.4 4.55 3.27 3.29 4.55 3.27 3.29 --- --- --- --- --- --- --- --- --- 6.35 4.28 4.31 --- --- ---

1¼ 42.2 4.85 4.51 4.54 4.85 4.51 4.54 --- --- --- --- --- --- --- --- --- 6.35 5.67 5.71 --- --- ---

1½ 48.3 5.08 5.47 5.50 5.08 5.47 5.50 --- --- --- --- --- --- --- --- --- 7.14 7.32 7.37 --- --- ---

2 60.3 5.54 7.56 7.61 5.54 7.56 7.61 --- --- --- --- --- --- --- --- --- 8.74 11.23 11.30 --- --- ---

2½ 73 7.01 11.52 11.60 7.01 11.52 11.60 --- --- --- --- --- --- --- --- --- 9.53 15.07 15.16 --- --- ---

3 88.9 7.62 15.43 15.53 7.62 15.43 15.53 --- --- --- --- --- --- --- --- --- 11.13 21.56 21.70 --- --- ---

3½ 101.6 8.08 18.82 18.94 8.08 18.82 18.94 --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

4 114.3 8.56 22.55 22.69 8.56 22.55 22.69 --- --- --- 11.13 28.60 28.79 --- --- --- 13.49 33.88 34.09 --- --- ---

5 141.3 9.53 31.28 31.48 9.53 31.28 31.48 --- --- --- 12.70 40.68 40.94 --- --- --- 15.88 49.61 49.93 --- --- ---

6 168.3 10.97 42.99 43.27 10.97 42.99 43.27 --- --- --- 14.27 54.75 55.10 --- --- --- 18.26 68.25 68.69 --- --- ---

Norminal PipeSize

DN(in.)

Outsi

deDiameter D

Norminal Wall Thickness

SPECIFICATION

ANSI/ASME B36.10 II

XS sch80 sch100 sch120 sch140 sch160

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Products Sizes

W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m

8 219.1 2.77 14.9 15.0 3.76 20.2 20.3 6.35 33.7 33.9 7.04 37.2 37.4 8.18 43.0 43.3 8.18 43.0 43.3 10.31 53.6 54.0

10 273 3.40 22.8 23.0 4.19 28.1 28.2 6.35 42.2 42.4 7.80 51.5 51.9 9.27 60.9 61.3 9.27 60.9 61.3 12.70 82.3 82.9

12 323.8 3.96 31.6 31.8 4.57 36.3 36.6 6.35 50.2 50.5 8.38 65.8 66.3 9.53 74.6 75.1 10.31 80.5 81.0 14.27 110.0 110.7

14 355.6 3.96 34.7 34.9 6.35 55.2 55.6 7.92 68.6 69.0 9.53 82.2 82.7 9.53 82.2 82.7 11.13 95.5 96.1 15.09 128.0 128.8

16 406.4 4.19 42.0 42.2 6.35 63.3 63.7 7.92 78.6 79.1 9.53 94.2 94.8 9.53 94.2 94.8 12.70 124.5 125.3 16.66 161.7 162.8

18 457 4.19 47.3 47.6 6.35 71.3 71.7 7.92 88.6 89.2 11.13 123.6 124.4 9.53 106.2 106.9 14.27 157.4 158.4 19.05 207.8 209.2

20 508 4.78 59.9 60.3 6.35 79.4 79.9 9.53 118.3 119.1 12.70 156.7 157.7 9.53 118.3 119.1 15.09 185.3 186.5 20.62 250.3 251.9

22 559 4.78 66.0 66.4 6.35 87.4 88.0 9.53 130.4 131.3 12.70 172.8 173.9 9.53 130.4 131.3 --- --- --- 22.23 297.2 299.1

24 610 5.54 83.4 84.0 6.35 95.5 96.1 9.53 142.5 143.5 14.27 211.8 213.1 9.53 142.5 143.5 17.48 258.0 259.7 24.61 358.9 361.2

26 660 --- --- --- 7.92 128.6 129.5 12.70 204.8 206.1 --- --- --- 9.53 154.4 155.4 --- --- --- --- --- ---

28 711 --- --- --- 7.92 138.7 139.6 12.70 220.9 222.3 15.88 275.0 276.7 9.53 166.5 167.6 --- --- --- --- --- ---

30 762 6.35 119.5 120.3 7.92 148.8 149.7 12.70 237.0 238.6 15.88 295.1 297.0 9.53 178.6 179.8 --- --- --- --- --- ---

32 813 --- --- --- 7.92 158.8 159.9 12.70 253.2 254.8 15.88 315.3 317.3 9.53 190.7 192.0 17.48 346.4 348.6 --- --- ---

34 864 --- --- --- 7.92 168.9 170.0 12.70 269.3 271.0 15.88 335.5 337.6 9.53 202.8 204.1 17.48 368.6 371.0 --- --- ---

36 914 --- --- --- 7.92 178.8 179.9 12.70 285.1 287.0 15.88 355.3 357.6 9.53 214.7 216.1 19.05 424.7 427.4 --- --- ---

38 965 --- --- --- --- --- --- --- --- --- --- --- --- 9.53 226.8 228.3 --- --- --- --- --- ---

40 1016 --- --- --- --- --- --- --- --- --- --- --- --- 9.53 238.9 240.5 --- --- --- --- --- ---

42 1067 --- --- --- --- --- --- --- --- --- --- --- --- 9.53 251.0 252.6 --- --- --- --- --- ---

44 1118 --- --- --- --- --- --- --- --- --- --- --- --- 9.53 263.1 264.8 --- --- --- --- --- ---

48 1219 --- --- --- --- --- --- --- --- --- --- --- --- 9.53 287.1 289.0 --- --- --- --- --- ---

SPECIFICATION

ANSI/ASME B36.10 IIINormina

l PipeSize

DN(in.)

Outsi

deDiameter D

Norminal Wall Thickness

sch5 sch10 sch20 sch30 STD sch40 sch60

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Products Sizes

--- --- ---

W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m W.T. kg/m kg/m --- --- ---

8 219.1 12.70 65.3 65.7 12.70 65.3 65.7 15.09 76.7 77.2 18.26 91.4 91.9 20.62 101.9 102.6 23.01 112.4 113.1 --- --- ---

10 273 12.70 82.3 82.9 15.09 96.9 97.6 18.26 115.9 116.6 21.44 134.4 135.2 25.40 156.7 157.7 28.58 174.0 175.1 --- --- ---

12 323.8 12.70 98.4 99.1 17.48 133.4 134.2 21.44 161.5 162.5 25.40 188.8 190.0 28.58 210.2 211.5 33.32 241.1 242.6 --- --- ---

14 355.6 12.70 108.5 109.2 19.05 159.7 160.7 23.83 196.9 198.2 27.79 226.9 228.4 31.75 256.1 257.8 35.71 284.6 286.4 --- --- ---

16 406.4 12.70 124.5 125.3 21.44 205.6 206.9 26.19 248.0 249.6 30.96 289.5 291.4 36.53 336.6 338.7 40.49 369.1 371.4 --- --- ---

18 457 12.70 140.6 141.5 23.83 257.1 258.8 29.36 312.8 314.8 34.93 367.2 369.6 39.67 412.4 415.0 45.24 464.0 467.0 --- --- ---

20 508 12.70 156.7 157.7 26.19 314.3 316.3 32.54 385.4 387.9 38.10 446.0 448.8 44.45 513.3 516.6 50.01 570.5 574.2 --- --- ---

22 559 12.70 172.8 173.9 28.58 377.6 380.0 34.93 456.0 458.9 41.28 532.4 535.8 47.63 606.7 610.6 53.98 679.1 683.4 --- --- ---

24 610 12.70 189.0 190.2 30.96 446.6 449.4 38.89 553.3 556.8 46.02 646.5 650.7 52.37 727.4 732.1 59.54 816.4 821.7 --- --- ---

26 660 12.70 204.8 206.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

28 711 12.70 220.9 222.3 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

30 762 12.70 237.0 238.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

32 813 12.70 253.2 254.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

34 864 12.70 269.3 271.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

36 914 12.70 285.1 287.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

38 965 12.7 301.3 303.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

40 1016 12.7 317.4 319.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

42 1067 12.7 333.5 335.7 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

44 1118 12.7 349.7 351.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

48 1219 12.7 381.6 384.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

SPECIFICATION

ANSI/ASME B36.10 IV

Norminal PipeSize

DN(in.)

Outsi

deDiameter D

Norminal Wall Thickness

XS sch80 sch100 sch120 sch140 sch160

17

Products Sizes

英寸 毫米 英寸 毫米 英寸 毫米 英寸 毫米

（in） （mm） （in） （mm） （in） （mm） （in） （mm）

7/0 0.5 12. 7 0.6666 16.932

6/0 0.464 11. 786 0.625 15.875 0. 58 14.732

5/0 0.432 10.973 0.5 12.7 0.5883 14.943 0.5165 13.119

4/0 0.4 10.16 0.454 11.532 0.5416 13.757 0.46 11.684

3/0 0.372 9.449 0.425 10. 795 0. 5 12.7 0. 4096 10.404

2/0 0.348 8.839 0.38 9.652 0.4452 11.308 0.3648 9.266

0 0.324 8.23 0.34 8.636 0.3964 10.069 0.3249 8.252

1 0.3 7.62 0.3 7.62 0.3532 8.971 0.2893 7.348

2 0.276 7.01 0.284 7.214 0.3147 7.993 0.2576 6.544

3 0.252 6.401 0.259 6.579 0.2804 7.122 0.2294 5.827

4 0.232 5.893 0.238 6.045 0.25 6.35 0.2043 5.189

5 0.212 5.385 0.22 5.588 0.2225 5.652 0. 1819 4.621

6 0.192 4.877 0.203 5.156 0.1981 5.032 0. 162 4.115

7 0.176 4.47 0. 18 4.572 0.1764 4.481 0. 1443 3.665

8 0.16 4.064 0.165 4.191 0.157 3.988 0.1285 3.264

9 0.144 3.658 0.148 3.759 0.1398 3.551 0. 1144 2.906

10 0.128 3.251 0.134 3.404 0.125 3. 175 0.1019 2. 588

11 0.116 2.946 0. 12 3.048 0.1113 2. 827 0.0907 2. 305

12 0.104 2.642 0.109 2.769 0.0991 2.517 0.0808 2. 053

13 0.092 2.337 0.095 2.413 0.0882 2.24 0.072 1. 828

14 0.08 2.032 0.083 2.108 0.0785 1.994 0.0641 1. 628

15 0.072 1. 829 0.072 1. 829 0.0699 1. 775 0. 0571 1. 45

16 0.064 1. 626 0.065 1.651 0.0625 1. 588 0.0508 1. 291

17 0.056 1.422 0.058 1.473 0.0556 1. 412 0. 0453 1. 15

18 0.048 1. 219 0.049 1.245 0.0495 1. 257 0.0403 1. 024

19 0. 04 1. 016 0.042 1. 067 0.044 1. 118 0. 0359 1.912

20 0.036 0.914 0.035 0.889 0.0392 0.996 0.032 0.812

SPECIFICATION

线规号码

SWG BWG BG AWG

18

英寸 毫米 英寸 毫米 英寸 毫米 英寸 毫米

（in） （mm） （in） （mm） （in） （mm） （in） （mm）

21 0.032 0.813 0.032 0.813 0.0349 0.887 0.0285 0.723

22 0.028 0.711 0.028 0.711 0.03125 0.794 0.02535 0.644

23 0.024 0.61 0.025 0.635 0.02782 0.707 0.02257 0.573

24 0.022 0.559 0.022 0.559 0.02476 0.629 0.0201 0.511

25 0.02 0.508 0.02 0.508 0.02204 0.56 0. 0179 0.455

26 0.018 0.457 0.018 0.457 0.01961 0. 498 0.01594 0.405

27 0.0164 0.417 0.016 0.406 0.01745 0.443 0.0142 0.361

28 0.0148 0.376 0.014 0.356 0.01562 0.397 0.01264 0.321

29 0.0136 0.345 0.013 0.33 0.0139 0.353 0.01126 0.286

30 0.0124 0.315 0.012 0.305 0.0123 0.312 0.01003 0. 255

31 0.0116 0.295 0.01 0.254 0.011 0.279 0.00893 0. 227

32 0.0108 0.274 0.009 0.229 0.0098 0.249 0.00795 0.202

33 0.01 0.254 0.008 0.203 0.0087 0. 221 0.00708 0. 18

34 0.0092 0.234 0.007 0.178 0.0077 0.196 0.0063 0. 16

35 0.0084 0.213 0.005 0.127 0.0069 0.175 0.00561 0.143

36 0.0076 0.193 0.004 0.102 0.0061 0.155 0.005 0. 127

37 0.0068 0.173 0.0054 0.137 0.00445 0. 113

38 0.006 0.152 0.0048 0.122 0.00396 0. 101

39 0.0052 0.132 0.0043 0.109 0.00353 0. 09

40 0.0048 0.122 0.00386 0.098 0.00314 0. 08

41 0.0044 0.112 0.00343 0.087 0.0028 0. 071

42 0.004 0.102 0.00306 0.078 0.00249 0. 063

43 0.0036 0.091 0.00272 0.069 0.00222 0.056

44 0.0032 0.081 0.00242 0.061 0.00198 0.05

45 0.0028 0.071 0.00215 0.055 0.00176 0.048

46 0.0024 0.061 0.00192 0.049 0. 00157 0.04

47 0.002 0.051 0.0017 0.043 0.0014 0. 035

48 0.0016 0.041 0.00152 0.039 0.00124 0.032

49 0.0012 0.03 0.00135 0.034 0.00111 0.028

50 0.001 0.025 0.0012 0. 03 0.00099 0.025

注： SWG一英国标准线规 BWG-伯明翰线规.,BG-伯明翰版规， AWG-美国线规（布朗和夏甫规）

BWG BG AWG

线规号码

SWG

19

Getting tender news

Studying tender information & Evaluating whether to bid or not

Preparing bidding documents and submit

Awarded PO

Pre-production meeting

Production

Delivery

Quality folloing up

Closing deal

Prepare the technical offer, commercial offer, bid bond and any other documentsneeded, then submit.

Peformance bond, finalize contract with mill, arrange third party inspection.

Hold PPM to clarify technical terms with mill, TPI, engineer Co., and end user. ConfirmMPS, ITP and QCP.

Follow up production, arrange on site inspection by TPI, Engineering Co., Walmi andmill, Issue Inspecting Report to customers to release the materials.

Supervising cargo loading and transportation, issue shipping documents to customerand offer weekly report to update the vessel information.

Following up the quality, visiting project owners, geting feedback from end users toimprove products quality and services.

Study project, research owner's background and reputation, exchange ideas with teammembers.

Study technical requirements, commercial terms, mill's production capacity to assessproject executability.

Project Management

Walmi owns rich experience in project management, details can be found in the following:

20

Quality Control

Walmi owns strict quality control system, details can be found in the following:

21

I

II

III

IV

Caused by wrong use environment.

Caused by wrong welding.

Caused by rude transportation or handling.

Caused by natural disaster

Other related material damages caused by buyer or end users.

Warranty policy

All goods from Walmi Stainless Steel will be produced and tested strictly in accordancewith the relevant standards, drawings and customer requirements to promise goodquality.

All piping products from Walmi Stainless Steel will be new and unused.

All stainless steel pipes, tubes, butt-welding fittings, valves and forged accessories from WalmiStainless Steel can enjoy 12 months or more free warranty, lifelong paid maintenance andreplacements.

Below conditions are not covered by our free warranty