After-sales Service: | Support |
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Warranty: | Support |
Type: | Seamless |
Technique: | Hot Rolled |
Material: | Alloy Steel |
Surface Treatment: | Black |
Samples: |
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Customization: |
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Composition, % | |||
Element | Grade 1 | Grade 3 | Grade 6 |
Carbon, max | 0.30 | 0.19 | 0.30 |
Manganese | 0.40 - 1.06 | 0.31 - 0.64 | 0.29 - 1.06 |
Phosphorous, max | 0.025 | 0.025 | 0.025 |
Sulfur, max | 0.025 | 0.025 | 0.025 |
Silicon | 0.18 -0.37 | 0.10 min | |
Nickel | 3.18 - 3.82 |
Grade 1 | Grade 3 | Grade 6 | ||||
psi | MPa | psi | MPa | psi | MPa | |
Tensile Strength, min | 55,000 | 380 | 65,000 | 450 | 60,000 | 415 |
Yield Strength, min | 30,000 | 205 | 35,000 | 240 | 35,000 | 240 |
Longitudinal | Transverse | Longitudinal | Transverse | Longitudinal | Transverse | |
Elongation in 2 in. or 50 mm, (or 4D), min, %: | ||||||
Basic minimum elongation for walls 5/16 in. [8 mm] and over in thickness, strip tests, and for all small sizes tested in full section | 35 | 35 | 30 | 20 | 30 | 16.5 |
When the standard round 2-in. or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used | 28 | 20 | 22 | 14 | 22 | 12 |
For strip tests, a deduction for each 1/32in. [0.8 mm] decrease in wall thickness below 5/16 in. [8 mm] from the basic minimum elongation of the following percentage | 1.75 | 1.25 | 1.50 | 1.00 | 1.50 | 1.00 |
Elongation in 2 in. or 50 mm, min, %: |
Wall Thickness | Grade 1 | Grade 3 | Grade 6 | ||||
in. | mm | Longitudinal | Transverse | Longitudinal | Transverse | Longitudinal | Transverse |
5/16 (0.312) | 8 | 35 | 25 | 30 | 20 | 30 | 16 |
9/32 (.281) | 7.2 | 33 | 24 | 28 | 19 | 28 | 15 |
1/4 (.250) | 6.4 | 32 | 23 | 27 | 18 | 27 | 15 |
7/32 (.219) | 5.6 | 30 | 26 | 26 | |||
3/16 (.188) | 4.8 | 28 | 24 | 24 | |||
5/32 (.156) | 4 | 26 | 22 | 22 | |||
1/8 (.125) | 3.2 | 25 | 21 | 21 | |||
3/32 (.094) | 2.4 | 23 | 20 | 20 | |||
1/16 (.063) | 1.6 | 21 | 18 | 18 |
Size of Specimen, min | Minimum Average Notched Bar Impact Value of Each Set of Three Specimens | Minimum Notched Bar Impact Value of One Specimen Only of a Set | Impact Temperature | ||||
ft-lbf | J | ft-lbf | J | Grade | Min Impact Test Temp |
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10 by 10 | 13 | 18 | 10 | 14 | F | C | |
10 by 7.5 | 10 | 14 | 8 | 11 | 1 | -50 | -45 |
10 by 6.67 | 9 | 12 | 7 | 9 | 3 | -150 | -100 |
10 by 5 | 7 | 9 | 5 | 7 | 6 | -50 | -45 |
10 by 3.33 | 5 | 7 | 3 | 4 | |||
10 by 2.5 | 4 | 5 | 3 | 4 |
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