9SiCr Hardware Tool Steel Bar
9SiCr steel is a low-alloy cutting tool steel, but also often produced cold mold parts, the effect is very good. It has higher hardenability and hardenability than chrome steel (Cr2 or 9Cr2) and has high tempering stability. Suitable for grading quenching or isothermal quenching. The steel was first cited from the former Soviet Union 9XC, formerly known as 9CrSi steel. Composition and performance exactly the same as 9XC. In China has a long history of application. Foreign similar steel only Germany 90CrSi5 Sweden's 2092 and SR1855, DF-1. Other countries have no similar steel. The steel can be used for a variety of complex shape, deformation requires a small cold mold parts.
Chemical Composition:
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | V(%) | Cu(%) |
---|---|---|---|---|---|---|---|---|
0.85~0.95 | 1.20~1.60 | 0.30~0.60 | ≤0.030 | ≤0.030 | 0.95~1.25 | ≤0.20 | ≤0.20 | ≤0.30 |
Mechanical Properties:
Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | HBW |
---|---|---|---|---|---|---|
225 (≥) | 687 (≥) | 31 | 11 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 332HB |
Physical Properties:
Property | Density kg/dm3 | Temperature T °C/F | Specific heat J / kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm |
---|---|---|---|---|---|
447 (≥) | 676 (≥) | 33 | 12 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc |
Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | - | - | - |
337 | 281 | 465 | - | - | - |