Key Specifications/Special Features:
Description
Low alloyed cold working tool steel.
Applications
For balls, rollers, links with diameter up to 10-17mm.
Chemical composition (in weight%)
C 1.05
Si 0.25
Mn 0.33
Cr 1.03
Physical properties (average values) at ambient temperature
Modulus of elasticity [103xN/mm2]: 210
Density [g/cm3]: 7.80
Soft annealing
Heat to 720-760ºC, cool slowly in furnace. This will produce a maximum Brinell hardness of 207.
Normalizing
Temperature: 860-890ºC.
Stress relieving
Stress relieving to remove machining stresses should be carried out by heating to 600-650ºC, holding for 1 hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 790-820ºC, 820-850ºC followed by oil or water quenching or warm bath approx. 400ºC. Hardness after quenching is approx. 65 HRC.
Tempering
Tempering temperature: 150-170ºC.
Forging
Hot forming temperature: 1100-850ºC.
Specifications:
Grade: DIN 105Cr4
Standard: DIN, GB
Diameter: 50-500mm
Certification: ISO
Technical treatment: cold-rolled and hot rolled
Packing and delivery
Packing: standard export seaworthy package or as customers' requirements.
Delivery: 7-20 days after received deposit of T/T.
| C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
| 0.03 |
0.5 |
0.5 |
0.02 |
0.005 |
11.5~13.5 |
4.5~6.5 |
1.5~3.5 |
Mechanical behavior
State: hardening and tempering state. The supply status is typically 95 or 110 ksi, 0.2% yield strength
Extreme tensile strength: 115 ksi or more (792N / mm2)
0.2% Yield point: 110 ksi or more (758 N / mm2)
Elongation: 15%
V-notch impact strength (-10 ° C): 78 Joules (60ft-lbf)
Hardness: 33%
Audited Supplier 
){kind=link}
){kind=link}