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About Steel
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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
Weldable 4130 Alloy Steel Sheets
 |
A low carbon content makes this 4130 alloy steel easy to weld. Also known as chrome-moly steel, it’s often used for pressure vessels and structural supports. It can be surface hardened with heat treating for added wear resistance.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Wd. | Lg. | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
0.025" Thick (-0.005" to 0.005" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T14 | 000000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T18 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T16 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T24 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T26 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T28 | 00000 | ||
0.032" Thick (-0.005" to 0.005" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T141 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T181 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T161 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T241 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T261 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T281 | 00000 | ||
0.04" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T142 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T182 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T162 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T242 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T262 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T282 | 000000 | ||
| 36" | 72" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T123 | 000000 | ||
0.05" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T143 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T183 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T163 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T243 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T263 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T283 | 000000 | ||
0.063" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T144 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T184 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T164 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T244 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T264 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T284 | 000000 | ||
| 36" | 72" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T121 | 000000 | ||
0.071" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T145 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T185 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T165 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T245 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T265 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T285 | 000000 | ||
0.08" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T146 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T186 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T166 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T246 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T266 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T286 | 000000 | ||
0.09" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T101 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T103 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T102 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T104 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T105 | 00000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T106 | 000000 | ||
0.1" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T147 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T187 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T167 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T247 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T267 | 000000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T287 | 000000 | ||
1/8" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T148 | 00000 | ||
| 6" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T188 | 00000 | ||
| 12" | 12" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T168 | 00000 | ||
| 12" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T248 | 00000 | ||
| 24" | 24" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T268 | 000000 | ||
| 36" | 36" | Cold Worked | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T288 | 000000 | ||
| 36" | 72" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T122 | 000000 | ||
0.16" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T149 | 00000 | ||
| 6" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T189 | 00000 | ||
| 12" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T169 | 00000 | ||
| 12" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T249 | 00000 | ||
| 24" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T269 | 000000 | ||
| 36" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T289 | 000000 | ||
0.19" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T15 | 00000 | ||
| 6" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T19 | 00000 | ||
| 12" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T17 | 00000 | ||
| 12" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T25 | 00000 | ||
| 24" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T27 | 000000 | ||
| 36" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T29 | 000000 | ||
| 36" | 72" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T124 | 000000 | ||
1/4" Thick (-0.009" to 0.009" Tolerance) | |||||||||||
| 6" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T151 | 00000 | ||
| 6" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T191 | 00000 | ||
| 12" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T171 | 00000 | ||
| 12" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T251 | 00000 | ||
| 24" | 24" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T271 | 000000 | ||
| 36" | 36" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T291 | 000000 | ||
| 36" | 72" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C49 | SAE AMS6350, SAE AMS6351 | 4459T125 | 000000 | ||
Weldable 4130 Alloy Steel Triangles
 |
Weld these alloy steel triangles to strengthen joints in structural applications. They're also known as gussets. They have clipped corners that leave room for a weld bead, so you can make stronger welds. Made from 4130 alloy steel, also known as chrome-moly steel, these triangles have low carbon content for good weldability. To increase their wear resistance, you can harden them with heat treating.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Wd. | Lg. | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/8" Thick (-0.009" to 0.009" Tolerance) | ||||||||||||
| 4" | 4" | Cold Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 2 | 9771N11 | 000000 | ||
| 6" | 6" | Cold Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N12 | 00000 | ||
| 8" | 8" | Cold Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N13 | 00000 | ||
| 12" | 12" | Cold Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N14 | 00000 | ||
3/16" Thick (-0.009" to 0.009" Tolerance) | ||||||||||||
| 4" | 4" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N15 | 00000 | ||
| 6" | 6" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N16 | 00000 | ||
| 8" | 8" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N17 | 00000 | ||
| 12" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N18 | 00000 | ||
1/4" Thick (-0.009" to 0.009" Tolerance) | ||||||||||||
| 4" | 4" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N19 | 00000 | ||
| 6" | 6" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N21 | 00000 | ||
| 8" | 8" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N22 | 00000 | ||
| 12" | 12" | Hot Rolled | Annealed | 50,000 | Rockwell B85 (Medium) | Rockwell C60 | SAE AMS6350, SAE AMS6351 | 1 | 9771N23 | 00000 | ||
