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| Standard | ASTM | Type | Alloy Steel Bar |
| Application | Tool Steel Bar | Special Use | Mold Steel |
| Tolerance | ±1% | Technique | Forged |
| Alloy Or Not | Is Alloy | Delivery Time | 31 ~ 45 days |
| Grade | Alloy Steel | Steel Grade | SAE 4140 Steel Price Per KG |
| Grade | SAE 4140 Steel Price Per KG | Material | Alloy Tool Steel |
| Special Use | Alloy Structural Steel 4140 | Production route | EF/EAF+LF+VD/ESR |
| Delivery condition | Hot Forged +Rough Machined (black Surface | Quality inspection | UT, Chemical test, Microstructure, Physical properties etc. |
| UT test standard | SEP1921-84 class3 C/c to D/d | Certification | ISO9001 |
| Tolerance | 0/+1.0mm(Turned ) -0/+5.0mm(black) |
China Loong Carbon Steel Co.,Ltd. Behind the growth and success are years of hard work and dedication in the steel industry and meeting customer needs on time. Advanced technology, standard products, certified quality standards and the best customer service make China Loong Carbon Steel Co.,Ltd. To be a true leader in the global market.
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Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Loong Carbon Steel - Meeting the Exact Needs of Every Industry That Uses steel.
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