3-1

Low carbon, hot rolled “mild steel” is suitable for general usage in production and maintenance work, due to its excellent welding and forming characteristics.

CARBON STEEL BARS HOT ROLLED

Grade Description ................................................................3-2Rounds .....................................................................3-3 thru 3-4Strip .......................................................................................3-5Flats (A-36) ................................................................3-6 thru 3-8 (M1044) ..........................................................................3-9Squares .................................................................................3-9Reinforcing Bars ..................................................................3-10Reinforcing Mesh ................................................................3-10

TOLERANCES .....................................................3-11 thru 3-12

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3-2

GRADE DESCRIPTIONHOT ROLLED CARBON BARSHot rolled carbon bars, often referred to as "SBQ" or "special bar quality", are known for their superior mechanical properties over commodity grades of merchant bar. These products are produced to specific chemistry and mechanical properties ranges and often are used in engineered applications such as gears, shafts, axles covering markets such as automotive, heavy truck and agricultural equipment.

CQ or Commercial Quality Steel is ordinarily produced from a low carbon steel. Specific chemistry and mechanical properties are not inherit to CQ products.

A36 is produced to a 36 ksi min yield point. A mild carbon steel with many uses that works well for fabricating, welding, bending and cold forming.

1018 is a general purpose low carbon steel with good case hardening qualities. It is especially suited to cold forming and bending operations and has excellent weldability.

1044 is a medium carbon steel used when greater strength is needed. Has good heat treating properties when induction or flame hardened.

1045 is a medium carbon steel used extensively in induction hardening applications. This is not normally considered a screw machine steel and is only fair for brazing and welding. 1045 hot rolled can be used for applications requiring more strength and wear resistance than the low carbon mild steels can provide.

1117 is a low carbon, high manganese steel. Machinability is improved over 1018 and case hardening is deep and uniform, supported by a tough ductile core. A free machining grade with improved mechanical properties suitable for carburized parts.

1141 is a medium carbon, special quality, manganese steel with improved machinability and better heat treatment response. Surface hardness is deeper and more uniform than plain carbon steels.

1144 is a resulphurized carbon steel containing manganese and sulphur to provide a free-machining steel. It is recommended especially for high-production automatic machine products and machined parts requiring higher strength and wear resistance than is possible with lower carbon steels.

3-3

3/16 .094 X 1/4 .167 X X 5/16 .260 X X 3/8 .375 X X 7/16 .510 X X 1/2 .670 X X 9/16 .850 X 5/8 1.040 X X 3/4 1.500 X X 7/8 2.050 X X 1 2.670 X X 1-1/8 3.380 X X 1-1/4 4.170 X X 1-3/8 5.050 X X 1-1/2 6.010 X X 1-5/8 7.050 X X 1-3/4 8.180 X X 1-7/8 9.390 X X 2 10.680 X X X 2-1/8 12.234 X X 2-1/4 13.704 X X X 2-3/8 15.258 X X 2-1/2 16.896 X X X 2-5/8 18.724 X X 2-3/4 20.533 X X X 2-7/8 22.426 X X 3 24.645 X X X X X 3-1/8 26.717 X X 3-1/4 28.872 X X X X X 3-3/8 31.111 X X 3-1/2 33.434 X X X X X 3-5/8 36.070 X X 3-3/4 38.568 X X X X X 4 43.814 X X X X X 4-1/8 46.562 X X 4-1/4 49.394 X X X X X 4-3/8 52.310 X X 4-1/2 55.309 X X X X X 4-5/8 58.685 X 4-3/4 61.859 X X X X X

HOT ROLLED ROUNDSSTOCK LENGTH 20'A36, 1018, 1045, 1117, & 1144 grades available.

Diameter(inches)

Weight(per ft.) CQ A-36 1018 1045 1117 1141 1144

Continued on next page

3-4

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HOT ROLLED ROUNDSSTOCK LENGTH 20'A36, 1018, 1045, 1117, & 1144 grades available.

Diameter(inches)

Weight(per ft.)

CQ A-36 1018 1045 1117 1141 1144

5 68.459 X X X X X 5-1/4 75.393 X X X X X 5-1/2 82.661 X X X X X 5-3/4 91.359 X X X X X 6 99.343 X X X X X 6-1/4 107.662 X X X X 6-1/2 116.315 X X X X X 6-3/4 126.162 X X X X 7 135.515 X X X X X 7-1/4 145.202 X X X 7-1/2 155.224 X X X X X 7-3/4 165.580 X X X 8 176.271 X X X X X 8-1/4 187.296 X X X X 8-1/2 199.737 X X X X X 8-3/4 211.463 X X 9 223.522 X X X X X 9-1/2 245.741 X X X X X 10 276.359 X X X X X 10-1/2 305.065 X X X X X 11 331.346 X X X X 11-1/2 371.645 X X 12 399.686 X X X X 12-1/2 427.936 X X 13 469.106

3-5

HOT ROLLED STRIP B. W. Gauge Pounds Stock B. W. Gauge Pounds Stock & Size (per ft.) Lengths & Size (per ft.) Lengths

1/8 x 3/8 .159 20' 1/2 .210 20' 5/8 .270 20' 3/4 .320 20' 7/8 .370 20' 1 .430 20' 1-1/8 .480 20' 1-1/4 .530 20' 1-3/8 .590 20' 1-1/2 .640 20' 1-3/4 .740 20' 2 .850 20' 2-1/4 .960 20' 2-1/2 1.060 20' 2-3/4 1.170 20' 3 1.280 20' 3-1/4 1.380 20' 3-1/2 1.490 20' 4 1.700 20' 4-1/2 1.910 20' 5 2.130 20' 5-1/2 2.338 20' 6 2.550 20' 7 2.975 20' 8 3.400 20' 9 3.825 20' 10 4.250 20' 12 5.130 20'

Material available in 12' lengths and available in Pickled & Oiled

3/16 x 3/8 .239 20' 1/2 .320 20' 5/8 .400 20' 3/4 .480 20' 7/8 .557 20' 1 .640 20' 1-1/8 .720 20' 1-1/4 .800 20' 1-3/8 .880 20' 1-1/2 .960 20' 1-3/4 1.120 20' 2 1.280 20' 2-1/4 1.430 20' 2-1/2 1.590 20' 2-3/4 1.750 20' 3 1.910 20' 3-1/4 2.070 20' 3-1/2 2.230 20' 4 2.550 20' 4-1/2 2.870 20' 5 3.190 20' 5-1/2 3.510 20' 6 3.820 20' 7 4.460 20' 8 5.100 20' 9 5.730 20' 10 6.380 20' 12 7.650 20'

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Ask your Alro Sales Representative about our Processing Services

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Contact us today and learn more about The Alro Difference!

3-6

HOT ROLLED FLATS (A-36)STOCK LENGTH 20'Thicknesses 3/16" and under, see Hot Rolled Strip (p. 3-5).

Size(inches)

Pounds(per ft.)

Size(inches)

Pounds(per ft.)

Continued on next page

1/4 x 1/2 .430 5/8 .530 3/4 .640 7/8 .750 1 .850 1-1/8 .956 1-1/4 1.060 1-3/8 1.170 1-1/2 1.280 1-5/8 1.380 1-3/4 1.490 2 1.700 2-1/4 1.910 2-1/2 2.130 2-3/4 2.330 3 2.550 3-1/4 2.760 3-1/2 2.980 3-3/4 3.190 4 3.400 4-1/4 3.610 4-1/2 3.830 5 4.250 5-1/2 4.680 6 5.100 6-1/2 5.530 7 5.950 7-1/2 6.375 8 6.800 9 7.650 10 8.500 11 9.350 11-1/2 9.870 12 10.200 5/16 x 3/4 .797 1 1.060 1-1/4 1.330 1-3/8 1.461 1-1/2 1.590 1-3/4 1.860 2 2.130 2-1/4 2.390 2-1/2 2.660 2-3/4 2.920 3 3.190 3-1/2 3.720 4 4.250 4-1/2 4.780 5 5.310 5-1/2 5.840 6 6.380

5/16 x 7 7.440 8 8.5003/8 x 1/2 .640 5/8 .800 3/4 .960 7/8 1.120 1 1.270 1-1/4 1.590 1-3/8 1.750 1-1/2 1.910 1-5/8 2.072 1-3/4 2.230 2 2.550 2-1/4 2.870 2-1/2 3.180 2-3/4 3.500 3 3.830 3-1/4 4.140 3-1/2 4.460 3-3/4 4.780 4 5.100 4-1/2 5.740 5 6.380 5-1/2 7.010 6 7.650 6-1/2 8.290 7 8.930 7-1/2 9.560 8 10.200 9 11.480 10 12.800 11 14.025 12 15.300 14 17.8507/16 2 2.9701/2 x 5/8 1.060 3/4 1.280 7/8 1.490 1 1.700 1-1/8 1.910 1-1/4 2.130 1-3/8 2.340 1-1/2 2.550 1-5/8 2.760 1-3/4 2.975 2 3.400 2-1/4 3.830 2-1/2 4.250 2-3/4 4.680

3-7

HOT ROLLED FLATS (A-36)STOCK LENGTH 20'Thicknesses 3/16" and under, see Hot Rolled Strip (p. 3-5).

Size(inches)

Pounds(per ft.)

Size(inches)

Pounds(per ft.)

Continued on next page

1/2 x 3 5.100 3-1/4 5.530 3-1/2 5.950 4 6.800 4-1/2 7.650 5 8.500 5-1/2 9.350 6 10.200 6-1/2 11.060 7 11.900 7-1/2 12.750 8 13.600 9 15.300 10 17.000 11 18.700 12 20.400 14 23.800 5/8 x 3/4 1.590 7/8 1.870 1 2.130 1-1/4 2.660 1-1/2 3.190 1-3/4 3.720 2 4.250 2-1/4 4.780 2-1/2 5.310 2-3/4 5.840 3 6.380 3-1/4 6.910 3-1/2 7.440 4 8.500 4-1/2 9.560 5 10.630 5-1/2 11.690 6 12.750 7 14.870 8 17.000 9 19.130 10 21.250 11 23.375 12 25.500 14 29.7503/4 x 1 2.550 1-1/8 2.870 1-1/4 3.190 1-1/2 3.830

3/4 x 1-3/4 4.460 2 5.100 2-1/4 5.740 2-1/2 6.380 2-3/4 7.010 3 7.650 3-1/4 8.290 3-1/2 8.930 4 10.200 4-1/2 11.480 5 12.750 5-1/2 14.030 6 15.300 6-1/2 16.575 7 17.900 8 20.400 9 22.950 10 25.500 11 28.050 12 30.600 14 35.7007/8 x 1-1/4 3.720 1-1/2 4.460 1-3/4 5.210 2 5.950 2-1/2 7.400 2-3/4 8.180 3 8.930 3-1/2 10.410 4 11.900 4-1/2 13.390 5 14.88 6 17.850 7 20.830 8 23.8001 x 1-1/4 4.250 1-1/2 5.100 1-3/4 5.950 2 6.800 2-1/4 7.650 2-1/2 8.500 2-3/4 9.350 3 10.200 3-1/4 11.050 3-1/2 11.900 4 13.600

3-8

HOT ROLLED FLATS (A-36)STOCK LENGTH 20'Thicknesses 3/16" and under, see Hot Rolled Strip (p. 3-5).

Size(inches)

Pounds(per ft.)

Size(inches)

Pounds(per ft.)

Continued on next page

1 x 4-1/2 15.300 5 17.000 5-1/2 18.700 6 20.400 7 23.800 8 27.200 9 30.600 10 34.000 12 40.800 14 47.6001-1/8 x 2 7.650 3 11.480 4 15.3001-1/4 x 1-1/2 6.380 1-3/4 7.440 2 8.500 2-1/4 9.560 2-1/2 10.630 2-3/4 11.690 3 12.750 3-1/2 14.880 4 17.000 4-1/2 19.130 5 21.250 5-1/2 23.380 6 25.500 7 29.750 8 34.000 10 42.5001-1/2 x 1-3/4 8.925 2 10.200 2-1/4 11.480 2-1/2 12.750 2-3/4 14.030 3 15.300 3-1/4 16.580 3-1/2 17.850 4 20.400 4-1/2 22.950 5 25.500 5-1/2 28.050 6 30.600 7 35.700 8 40.800 10 51.000

1-3/4 x 2 11.900 2-1/2 14.880 3 17.850 3-1/2 20.830 4 23.800 4-1/2 26.790 5 29.750 6 35.7002 x 2-1/4 15.300 2-1/2 17.000 3 20.400 3-1/2 23.800 4 27.200 4-1/2 30.600 5 34.000 5-1/2 37.400 6 40.800 7 47.600 8 54.400 10 68.060 12 81.6002-1/4 x 3 22.950 4 30.600 5 38.2502-1/2 x 3 25.500 3-1/2 29.750 4 34.000 4-1/2 38.250 5 42.500 5-1/2 46.750 6 51.0003x 3-1/2 35.700 4 40.800 4-1/2 45.900 5 51.000 6 61.2003-1/2x 4 47.600 6 71.4004x 4-1/2 61.200 5 68.000 6 81.600

3-9

1/4 x 1 .850 1-1/4 1.060 1-1/2 1.275 2 1.700 3/8 x 1 1.280 1-1/4 1.590 1-1/2 1.910 2 2.550 2-1/2 3.180 3 3.830 4 5.100 5 6.380 6 7.6501/2 x 1 1.700 1-1/2 2.550 2 3.400 2-1/2 4.250 3 5.100 4 6.800 5 8.500 6 10.200 5/8 x 2-1/2 5.310 8 17.0003/4 x 1-1/2 3.830 2 5.100 2-1/2 6.380 3 7.650

3/4 x 3-1/2 8.930 4 10.200 4-1/2 11.475 5 12.750 6 15.300 1 x 2 6.800 2-1/2 8.500 3 10.200 4 13.600 5 17.000 6 20.4001-1/4 x 2 8.500 3-1/2 14.880 4 17.000 5 20.250 5-1/4 23.000 6-1/4 26.550 8 34.0001-1/2 x 3 15.300 4 20.400 5 25.500 2 x 3 20.400 4 27.200 5 34.000 6 40.800 7 47.600

HOT ROLLED FLATS (M1044)STOCK LENGTH 20'

Size(inches)

Pounds(per ft.)

Size(inches)

Pounds(per ft.)

HOT ROLLED SQUARESSTOCK LENGTH 20'

3/8 .480 1/2 .850 5/8 1.330 3/4 1.910 7/8 2.600 1 3.400 1-1/4 5.310 1-1/2 7.650 1-3/4 10.400 2 13.600

Size(inches)

Pounds(per ft.)

Size(inches)

Pounds(per ft.)

2-1/4 17.210 2-1/2 21.300 2-3/4 25.700 3 30.600 3-1/2 41.700 4 54.400 4-1/2 68.900 5 85.000 6 122.400

3-10

CONCRETE REINFORCING BARSSTOCK LENGTHS 20', 40'MATERIAL AVAILABLE IN GRADES 40 AND 60

• Round bars equal in cross sectional area to the standard square sizes indicated

3/8 Rd. 3 .376 1/2 Rd. 4 .668 5/8 Rd. 5 1.043 3/4 Rd. 6 1.502 7/8 Rd. 7 2.044 1 Rd. 8 2.670 1-1/8 Rd. 9 3.379

Size(inches)

BarNumber

Pounds(per ft.)

6 x 6 x 6 Gage x 6 Gage .................... 5’ x 150' 6 x 6 x 10 Gage x 10 Gage ................ 5’ x 150’

CONCRETE REINFORCING MESH

Alro will deliver your Concrete Reinforcement order to your facility or job site

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3-11

HOT ROLL STEEL BARS SIZE TOLERANCESAND OUT-OF-ROUND OROUT-OF SQUARE TOLERANCESHot Rolled Steel Bars Round, Square, and Round-Cornered Square Size Tolerances (inches) Out-of-Round or Out-of-SquareSpecified Sizes (inches) Over Under Section (inches)

1/2 thru 5/8 0.007 0.007 0.010Over 5/8 thru 7/8 0.008 0.008 0.012Over 7/8 thru 1 0.009 0.009 0.013Over 1 thru 1-1/8 0.010 0.010 0.015Over 1-1/8 thru 1-1/4 0.011 0.011 0.016Over 1-1/4 thru 1-3/8 0.012 0.012 0.018Over 1-3/8 thru 1-1/2 0.014 0.014 0.021Over 1-1/2 thru 2 1/64 1/64 0.023Over 2 thru 2-1/2 1/32 0 0.023Over 2-1/2 thru 3-1/2 3/64 0 0.035Over 3-1/2 thru 4-1/2 1/16 0 0.046Over 4-1/2 thru 5-1/2 5/64 0 0.058Over 5-1/2 thru 6-1/2 1/8 0 0.070Over 6-1/2 thru 8-1/4 5/32 0 0.085Over 8-1/4 thru 9-1/2 3/16 0 0.100Over 9-1/2 1/4 0 0.120

Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same transverse cross section. Out-of-square section is the difference in perpendicular distance between opposite faces, measured at the same transverse cross section.

Besides carrying materials in standard stock lengths, Alro provides a variety of processing services that allow customers to order materials pre-cut to size.

3-12

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