Audited Supplier
30CrMoV9 DIN1.7707
Round
DIN
Ferrous Steel Scrap
Hot Forged,or Hot Rolled
Round,Flat or Square
Polished,Grinded or Peeled
Alloy Structural Steel
Structural Steel Bar
CHENGQUAN
Seaworth Packing
Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
Huangshi, Hubei
7228100000
Product Description
ApplicationStructural parts of medium and large cross sections and high surface hardness, e.g., valve and gate valves, cylinders for combustion engines, superheated steam valves and fittings.All Grades Comparison
Quality StandardEN 10250 Open steel die forgings for general engineering purposes. Alloy special steelsChemical Composition(%)
Mechanical Properties(T=20°C if not differently stated)
HEAT TREATMENT:
| DIN | EN |
| 1.7707 | 30CrMoV9 |
| C | Mn | Si | P | S | Cr | Ni | Mo | V |
| 0.26-0.34 | 0.40-0.70 | 0.40 max | 0.035 max | 0.035 max | 2.30-2.70 | 0.60 max | 0.15-0.25 | 0.10-0.20 |
| Process | Diameter(mm) | Tensile Strength Rm (Mpa) | Yield Strength Rp0.2 (Mpa) | Elongation A5 (%) | Impact Value Kv (J) Room Temperature |
| QUENCHED AND TEMPERED | 160 max | 900 min | 700 min | 12 min | 35 min |
| QUENCHED AND TEMPERED | 160-330 | 800 min | 590 min | 14 min | 35 min |
- Soft Annealing: Heat to 680-720oC, cool slowly. This will produce a maximum Brinell hardness of 248.
- Nitriding:
Gas/plasma nitriding temperature (gas, salt bath): 570-580°C
Gas/plasma nitriding temperature (powder, plasma): 580°C
Surface hardness after nitriding: 800 HVHardening: Harden from a temperature of 850-880°C followed by oil quenching.
