ASTM A213,T22ASTM A213,T22

Standard Seamless Ferritic And Standard Seamless Ferritic And Austenitic Alloy-Steel Boiler,Superheater Austenitic Alloy-Steel Boiler,Superheater

And Heat-Exchanger Tubes.And Heat-Exchanger Tubes.

ScopeScope This specification covers seamless ferritic and This specification covers seamless ferritic and

austenitic steel boiler,superheater and heat-austenitic steel boiler,superheater and heat-exchanger tubes.exchanger tubes.

It provides creep-rupture strength than normally It provides creep-rupture strength than normally achievable in similar grades without these different achievable in similar grades without these different requirements.requirements.

Tube Sizes :Tube Sizes :Inside Diameter = 1/8 in [32 mm] to 5 in [127mm].Inside Diameter = 1/8 in [32 mm] to 5 in [127mm].Outer Diameter = 0.015 [0.4 mm] to 5.00 in[12.7mm]Outer Diameter = 0.015 [0.4 mm] to 5.00 in[12.7mm]Inclusive with minimum wall thickness. Inclusive with minimum wall thickness.

The Design Metal Temperature shall not exceed The Design Metal Temperature shall not exceed

537 537 ° C [ 1000 ° F ] For A213 T22.° C [ 1000 ° F ] For A213 T22. The maximum working pressure allowed on steel The maximum working pressure allowed on steel

pipes shall be determined by the following pipes shall be determined by the following formulae:formulae:

a)a) Where the OD is the basis for calculation,Where the OD is the basis for calculation,

W.P. = 2fe(t - c) / D – t + cW.P. = 2fe(t - c) / D – t + c

b)b) Where the ID is the basis for calculation,Where the ID is the basis for calculation,

W.P. = 2fe(t - c) / D – t + cW.P. = 2fe(t - c) / D – t + c

Where,Where,

t t = Minimum thickness= Minimum thickness

W.P.W.P. = Maximum working pressure= Maximum working pressure

ff = Allowable stress= Allowable stress

DD = Outside diameter of pipe= Outside diameter of pipe

dd = Inside diameter of pipe= Inside diameter of pipe

ee = Efficiency factor= Efficiency factor

= 1.0 for seamless and for electric resistance = 1.0 for seamless and for electric resistance welded steel pipes welded steel pipes

CC = 0.75 mm= 0.75 mm

Permitted Variation in Outside Diameter As per Permitted Variation in Outside Diameter As per A1016/A1016M Table 3 Pg.No. 782.A1016/A1016M Table 3 Pg.No. 782.

Permitted Variation in Wall Thickness As per Permitted Variation in Wall Thickness As per A1016/A1016M-08 Table 2 Pg.No. 781.A1016/A1016M-08 Table 2 Pg.No. 781.

Permitted Variation in Length As per Permitted Variation in Length As per A1016/A1016M-08 Table 4 Pg.No. 782.A1016/A1016M-08 Table 4 Pg.No. 782.

Quantity ( feet, meters, lengths)Quantity ( feet, meters, lengths) Name Of Material :- Seamless Carbon Steel pipe Name Of Material :- Seamless Carbon Steel pipe

Grade (Chemical Composition)Grade (Chemical Composition) Manufacture ( hot-finished Or Cold –drawn)Manufacture ( hot-finished Or Cold –drawn) Sizes (NPS,DN)Sizes (NPS,DN) Out Side Diameter & Nominal Wall Thickness.Out Side Diameter & Nominal Wall Thickness. Out Side Diameter & Minimum Wall Thickness.Out Side Diameter & Minimum Wall Thickness. Inside Diameter &Nominal Wall Thickness.Inside Diameter &Nominal Wall Thickness. Inside Diameter &Nominal Wall Thickness.Inside Diameter &Nominal Wall Thickness. Length (Specific or Random).Length (Specific or Random). Condition ( hot finished or Cold finished).Condition ( hot finished or Cold finished).

Hydrostatic Test or Nondestructive Electric Test.Hydrostatic Test or Nondestructive Electric Test. Specification designation And Year of issue.Specification designation And Year of issue. Increased sulfur ( for machinability ).Increased sulfur ( for machinability ).

Length Length

If specific cut lengths of 24ft (7.3m) or less are If specific cut lengths of 24ft (7.3m) or less are orderd,no length of pipe shall be under the length orderd,no length of pipe shall be under the length specified or more than ¼ in (6 mm ) over specified.specified or more than ¼ in (6 mm ) over specified.

Lengths greater than 24 ft (7.3 m) shall be subjected Lengths greater than 24 ft (7.3 m) shall be subjected to agreement between manufacturer and supplier.to agreement between manufacturer and supplier.

Chemical Composition.( k21590)Chemical Composition.( k21590)

Carbon 0.05 - 0.15 %Carbon 0.05 - 0.15 % Mn 0.30 – 0.60 %Mn 0.30 – 0.60 % P 0.25 % (max)P 0.25 % (max) S 0.025 % (max)S 0.025 % (max) Si 0.50 (max) %Si 0.50 (max) % Cr 1.90 – 2.60 %Cr 1.90 – 2.60 % Mo 0.87 – 1.33 %Mo 0.87 – 1.33 %

General RequirementGeneral Requirement

Material furnished to this specification Material furnished to this specification shall conform to the applicable shall conform to the applicable requirements of the current edition of requirements of the current edition of specification A1016/A1016M , unless specification A1016/A1016M , unless provided herein.provided herein.

ProcessProcess Tubes shall be made by the seamless process and Tubes shall be made by the seamless process and

shall be either hot finished or cold finished, as shall be either hot finished or cold finished, as specified.specified.

Heat Treatment :Heat Treatment :

Ferritic Alloy And Ferritic Stainless Steel:Ferritic Alloy And Ferritic Stainless Steel:

It shall be Reheated for heat treatment accordance It shall be Reheated for heat treatment accordance with the requirement of Table 3 (A213/213M with the requirement of Table 3 (A213/213M Pg.No. 122 and 123 )Pg.No. 122 and 123 )

Heat treatment should be carried out separately and Heat treatment should be carried out separately and in addition to heating for Hot Forming.in addition to heating for Hot Forming.

Autenitic Stainless Steels : Autenitic Stainless Steels :

It shall be subjected to heat treatment accordance It shall be subjected to heat treatment accordance with the requirement of Table 3 (A213/213M with the requirement of Table 3 (A213/213M Pg.No. 122 and 123 ).Pg.No. 122 and 123 ).

Alternative :Alternative :

Immediately after hot forming ,the temp not less Immediately after hot forming ,the temp not less than the minimum solution treatment tepmpetrature than the minimum solution treatment tepmpetrature specified in Table 3,tubes may be Individually specified in Table 3,tubes may be Individually quenched in water or rapidly cooled by other means quenched in water or rapidly cooled by other means ( Direct Quenched ).( Direct Quenched ).

Heat Treatment Requirements :Heat Treatment Requirements :

UNS Number – k21590UNS Number – k21590

Full Or Isothermal annel normalize and temper.Full Or Isothermal annel normalize and temper.

Austenitizing Temperature : 1900 – 1975 Austenitizing Temperature : 1900 – 1975 ° F° F

1040 – 1080 ° C1040 – 1080 ° C

Tempering Temperature : 1250 ° FTempering Temperature : 1250 ° F

675 ° C675 ° C

Tensile Requirements :Tensile Requirements : Tensile Strength – 415 MPa [ 60 Ksi] (min)Tensile Strength – 415 MPa [ 60 Ksi] (min)

Yield Strength Requirements : Yield Strength Requirements : Yield Strength – 205 Mpa [ 30 Ksi ] (min)Yield Strength – 205 Mpa [ 30 Ksi ] (min)

Elongation in 2 in – 30 % (min)Elongation in 2 in – 30 % (min)

Brinell Hardness – 163 HBBrinell Hardness – 163 HB

Rockwell – 85 HRBRockwell – 85 HRB

SamplingSampling Lot Size Should be of same Heat of steel.Lot Size Should be of same Heat of steel.

When final heat treatment is in a batch-type When final heat treatment is in a batch-type furnace , a lot include only those tubes of the same furnace , a lot include only those tubes of the same size and from the same size and from the same heat size and from the same size and from the same heat that heat treated in the same furnace charge.that heat treated in the same furnace charge.

For Continuous furnace & by quenching after hot For Continuous furnace & by quenching after hot forming – number of tubes of same size ,same heat forming – number of tubes of same size ,same heat in lot shall be determined from size of tubes.in lot shall be determined from size of tubes.

Flattening TestFlattening Test One Flattening test shall be made on specimens One Flattening test shall be made on specimens

from each of one finished tube, not the one used for from each of one finished tube, not the one used for flaring test.flaring test.

Section tube Section tube ≥ 2 1/2 in [ 60 mm ] For Seamless tube.≥ 2 1/2 in [ 60 mm ] For Seamless tube. ≥ ≥ 4 in [ 100 mm ] For welded tubes.4 in [ 100 mm ] For welded tubes. Weld shall place at 90 ° from direction of applied Weld shall place at 90 ° from direction of applied

force.force. ( Standard Assumptions for flattening test ).( Standard Assumptions for flattening test ).

Flaring TestFlaring Test Section of tube Approx 4 in [ 100 mm ].Section of tube Approx 4 in [ 100 mm ]. With 60 With 60 ° included angle tool.Untill the tube at the ° included angle tool.Untill the tube at the

mouth of the flare has been expanded to the % mouth of the flare has been expanded to the % specified in Table [pg no 783 in ASTM book] with specified in Table [pg no 783 in ASTM book] with out cracking or showing imperfections rejectable out cracking or showing imperfections rejectable under the provisions of the product specification.under the provisions of the product specification.

Hydrostatic TestHydrostatic Test

Nondestructive Electric Test.Nondestructive Electric Test.

Surface ConditionSurface Condition Ferritic Alloy Col-Finished steel tubes : Free of Ferritic Alloy Col-Finished steel tubes : Free of

scale. scale.

Ferritic Alloy Hot Finished Steel tubes : free of Ferritic Alloy Hot Finished Steel tubes : free of loose scale and suitable for inspection.loose scale and suitable for inspection.

Any Special finish requirement shall be subject to Any Special finish requirement shall be subject to agreement between the supplier and the purchaser.agreement between the supplier and the purchaser.

Product MarkingProduct Marking As per Specification A1016/1016M, the marking As per Specification A1016/1016M, the marking

shall include.shall include.

ConditionCondition

Hot Finished or Cold Finished Hot Finished or Cold Finished

The wall designation ( minimum wall or Avg The wall designation ( minimum wall or Avg Wall).Wall).

Marking shall include the heat number and heat Marking shall include the heat number and heat treatment.treatment.

High pressure boiler pipe applies to container, High pressure boiler pipe applies to container, petrochemical petrochemical