EN10297-1 25CrMo4 seamless steel pipe/steel tube
25CrMo4 seamless steel pipe/steel tube are generally intended for fabrication of quenched and tempered, flame or induction hardened machine parts.
25CrMo4 seamless steel pipe/steel Chemical Composition
| Grade | C | Si | Mn | S | P | Gr | Ni | Cu | Mo |
| 25CrMo4 | 0.22～0.29 | 0.1-0.4 | 0.60～0.90 | ≤0.035 | ≤0.035 | 0.90～1.20 | ≤0.030 | ≤0.10 | 0.15-0.30 |
25CrMo4 seamless steel pipe/steel Mechanical Property
| Steel Grade | Yield Strength(ReH)Mpaa | Tensile Strength(Rm)Mpa | Elongation A% | |||||||||||||
| For T in mm | For T in mm | |||||||||||||||
| ≤8 | ＞8 ≤20 |
＞20 ≤50 |
＞50 ≤80 |
≤8 | ＞8 ≤20 |
＞20 ≤50 |
＞50 ≤80 |
≤8 | ＞8 ≤20 |
＞20 ≤50 |
＞50 ≤80 |
|||||
| l | t | l | t | l | t | l | t | |||||||||
| 25CrMo4 | 700 | 600 | 450 | 400 | 900 | 800 | 700 | 650 | 12 | 10 | 14 | 12 | 15 | 13 | 16 | 14 |
25CrMo4 seamless steel pipe/steel Heat treatment conditions
| Quenching temperature, 0C | Tempering temperature, 0C |
| 840 to 880 | 540 to 680 |
25CrMo4 seamless steel pipe Quenching from hardening may be carried out in oil, water, or water based solutions. Caution should be observed in the use of water as a quenching medium to avoid the risk of cracking the forgings.
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