After-sales Service: | Online Technical Support |
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Warranty: | 1 Year |
Type: | Plate/Round |
Standard: | ASTM, AISI, GB, JIS, DIN, BS |
Certification: | ISO, RoHS |
Surface Treatment: | Black/Milled |
Samples: |
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Customization: |
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4340 1.6511 SNCM439 Black Surface Alloy Structural Steel
Steel Grade | C | Si | Mn | Cr | Ni | Mo | Cu | P | S |
4340 | 0.38~0.43 | 0.15~0.35 | 0.60~0.80 | 0.70~0.90 | 1.65~2.00 | 0.20~0.30 | ≤0.035 | ≤0.040 |
It has high strength, toughness, excellent hardenability and stability against overheating.
Application
Manufacturing important parts with high strength and good plasticity, and manufacturing important parts with special functional requirements after nitriding treatment, such as shafts, gears, fasteners, etc
FAQ
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