Key Specifications/Special Features:
Description
Low alloyed cold working tool steel.
Applications
Cutting tools for steels and metals, broaching tools, thread cutting tools, files, chisels, drawing dies, cutting tools for the hardest stone.
Chemical composition (in weight %)
C 1.38
Si 0.20
Mn 0.23
Physical properties (average values) at ambient temperature
Modulus of elasticity [103xN/mm2]: 210
Density [g/cm3]: 7.85
Soft annealing
Heat to 680-720ºC, cool slowly. This will produce a maximum Brinell hardness of 210.
Stress relieving
Stress relieving to remove machining stresses should be carried out by heating to approx. 600-650ºC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 760-780ºC followed by oil or water quenching with addition of NaCl. Hardness after quenching is approx. 65 HRC.
Forging
Hot forming temperature: 1000-800ºC.
Specifications:
Grade: DIN C135W
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%
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