seamless steel pipe non-ferrous 4140+QT
Category:
PRODUCT
Steel Tube
Brief description:
Key words:
galvanized steel pipe
welded steel pipe
non-ferrous
welded steel pipe
Product Description
Product Description
| 4140 | |||||||||||
| Ⅰ、Chemical Composition(％)： | |||||||||||
| C | Mn | P | S | Si | Cr | Mo | |||||
| 0.38-0.43 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.15-0.35 | 0.15-0.35 | 0.15-0.25 | |||||
| Ⅱ、mechanical property | |||||||||||
| 4140 | Yield Point(Mpa) | tensile strength（Mpa） | elongation | reduction of area | |||||||
| ≥930(95) | ≥1080(110) | A≥12% | Z≥55% | ||||||||
| Akv (J) | αkv (J/cm2) | hardness | |||||||||
| ≥63 | ≥78(8) | ≤217HB | |||||||||
| Ⅲ、Application | |||||||||||
| 4140 alloy steel is widely used in machinery manufacturing, automotive, aerospace and other fields | |||||||||||
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olivia@sdtuoda.com 
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