8MnSi tool steel
Grade: SWRH67A spring steel
● Characteristics and scope of application:
After heat treatment, it has high strength and elasticity and certain plasticity and toughness. However, the hardenability is low, and it is generally used for various plate springs, coil springs and washers with small sections and operating temperatures below 120 ° C.
● Chemical composition:
Carbon C: 0.62 ~ 0.70
Silicon Si: 0.17 ~ 0.37
Manganese Mn: 0.50 ~ 0.80
Sulfur S: ≤ 0.035
P: ≤ 0.035
Chromium Cr: ≤ 0.25
Nickel Ni: ≤ 0.25
Copper Cu: ≤ 0.25
● Mechanical properties:
Tensile strength σb (MPa) : ≥695 (71)
Yield strength σs (MPa) : ≥410 (42)
Elongation δ5 (%) : ≥10
Section shrinkage ratio ψ (%) : ≥30
Hardness: no heat treatment, ≤255HB; Annealed steel ≤229HB
1. The company has established long-term and stable cooperative relations with many well-known brand steel mills at home and abroad, all of which provide proof of original material books
2. Wholesale and retail, price concessions, high quality (large quantity is preferred), timely delivery
3. The company has several large vertical band saws, as well as steel plate finishing machinery,
4. Is a set of imported high-quality mold steel sales wholesale and machining services in one of the large enterprises
5. Wide channels, sufficient supply, business scope all over the country, can meet the needs of customers in various regions
Sincerely welcome new and old customers from all walks of life friends at any time to inquire and negotiate business, our high-quality products, reasonable prices, will certainly meet your requirements!
Welcome new and old customers to inquire and negotiate.