9Cr18Mo Stainless Steel
9Cr18 is a high carbon chromium martensitic stainless bearing steel. After quenching, it has high hardness and wear resistance, as well as dimensional stability at high and low temperatures.
One. Product Description
9Cr18Mo Stainless Steel is a high carbon chromium stainless steel used to manufacture bearing rings and rolling elements. The standard is GB/T1220-2007, and the grade becomes 102Cr17Mo.
Used as stainless steel slicing machinery knives and shearing knives, surgical blades, high wear-resistant equipment parts, etc. 9Cr18 is a high carbon chromium martensitic stainless steel bearing steel. After quenching, it has high hardness and wear resistance, and has high temperature and low temperature dimensional stability.
The properties and uses of 9Cr18Mo are basically the same as 9Cr18 steel, but it has higher hardness and tempering resistance after quenching, and molybdenum can increase the passivation of stainless steel. 9Cr18, 9Cr18Mo high carbon chromium stainless steel balls Application: suitable for the manufacture of bearings in seawater, river water, nitric acid, steam and marine and other corrosive media, such as marine bearings, submersible pump parts, petrochemical machinery bearings, marine instrument bearings, etc.
Two. Quality Standard
GB/T1220-200 Standard Specification
Three. Product Specifications
Four. Equivalent Grade of 9Cr18Mo Tool Steel - For Reference Only
|
|
China GB |
US ASTM |
Germany DIN |
EU EN |
|
9Cr18Mo |
5Cr3Mn1SiMo1V |
S7 |
1.2355 |
50CrMoV13-15 |
Five. Product Features and Uses
Features:
1. High hardness.
2. Good wear resistance.
3. High impact resistance.
4. High viscosity and fast heating.
Use:
It is suitable for tableware (knife) with good corrosion resistance (magnetic), turbine blades whose hardness is higher than 440A steel (magnetic) after quenching, blades, nozzles, valves, board rulers, tableware (scissors).
Six. Product Detailed Information
9Cr18Mo stainless steel is a Chinese national standard martensitic stainless steel, which has high hardness and wear resistance after quenching, and has good dimensional stability at high temperature and low temperature.
9Cr18Mo stainless steel has similar properties and uses as 9Cr18, but has higher heat resistance and tempering resistance after quenching, while molybdenum (MO) can increase the passivation effect of stainless steel.
Note: 9Cr18Mo (old name) = 102Cr17Mo (new name).
Physical Properties
Density (g/cm³): 7.70.
Specific heat capacity (J/Kg-K): 430 at 0-100℃.
Thermal conductivity (W/m-K): 16.0 at 100℃.
Linear thermal expansion coefficient (10-6/K): 10.4 (0~100℃).
Resistivity (Ω·m): 0.80~20℃.
Longitudinal elastic modulus (KN/m㎡): 215 at 20℃.
Heat Treatment
Annealing temperature: 800~900℃.
Quenching temperature: 1000~1050℃.
Tempering temperature: 200~300℃.
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