16CrMo44|DIN 1.7337 steel Manufacturer and Exporter,supplied with round,square,flat,block,and shaft etc.16CrMo44 is a low carbon steel containing chromium and molybdenum as strengthening elements which is similiar like Chinese grade 15CrMo.As pearlitic structure heat resistant steel,it has high hot strength and oxidation resistance when in high temperature,and it also has good welding property.16CrMo44 is generally used in the quenched and tempered condition.
1.Supply Form & Size & Tolerance
Supply Form | Size(mm) | Process | Tolerance | |
Round | Φ6-Φ100 | Cold Drawn | Bright/Black | Best H11 |
Φ16-Φ350 | Hot Rolled | Black | -0/+1mm | |
Peeled/ground | Best H11 | |||
Φ90-Φ1000 | Hot Forged | Black | -0/+5mm | |
Rough Turned | -0/+3mm | |||
Flat/Square/Block | Thickness :120-800 | Hot Forged | Black | -0/+8mm |
Width:120-1500 | Rough Machined | -0/+3mm |
Remark:Tolerance can be customized as per requests
2.Chemical Composition
Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
DIN | 16CrMo44 | 0.13-0.2 | 0.5-0.8 | ≤ 0.025 | ≤ 0.035 | 0.15-0.35 | 0.9-1.2 | 0.4-0.5 |
1.7337 | ||||||||
GB/T 3077 | 15CrMo | 0.12-0.18 | 0.4-0.7 | ≤ 0.035 | ≤ 0.035 | 0.17-0.37 | 0.8-1.1 | 0.4-0.55 |
3.Physical Property
Density, g/cm3 | 7.85 | ||||
Modulus of elasticity Gpa | 210 |
4. Mechanical Property
Tensile Strength Mpa | Yield Strength Mpa | Elongation % | Reduction of Area % | Impact Charpy-V, J | Hardness HB |
740 | 635 | 22.5 | 65 | 80 | 220-260 |
5.Forging
DIN1.7337 |16CrMo44 forging temperature:850 – 1100°C
6.Heat Treatment
- Normalizing: 850 – 880°C,Cooling in air
- Soft Annealing:650 – 680°C,Cooling in furnace
- Stress relieve:450-650°C ,appr. 50 °C under tempering temperature
- Hardening:900 – 950°C,Quenching in oil
- Tempering:650 – 720°C,Cooling in air
7.Application
DIN1.7337 |16CrMo44 is widely used in petroleum ,petrifaction , high pressure boiler. Specialized purpose of seamless tube.Component parts for steam boilers and turbines, shafts for higher temperature ranges.