| Customization: | Available |
|---|---|
| Product Type: | Rod |
| Material: | FeSi |
|
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
1.7225 round steel
1.7225 Steel rod
Alloy 1.7225
1.7225 steel plate
1.7225 Steel pipe
1.7225 steel belongs to alloy structural steel in terms of material classification. It has good mechanical properties and machinability, and is widely used. It mainly consists of two types of materials, plate and round rod, whose comprehensive performance is better than 40cr and has been recognized by the industry.
Steel belongs to ultra-high strength steel, with high strength and toughness, good hardenability, no obvious tempering brittleness, high fatigue limit and multiple impact resistance after tempering treatment, low temperature impact toughness is good. 42CrMo steel is suitable for manufacturing large and medium-sized plastic molds requiring certain strength and toughness.
1.7225 Tempering components
C: 0.38 ~ 0.45%
Si: 0.17 ~ 0.37%
Manganese Mn: 0.50 ~ 0.80%
Sulfur S: Allowable residual content ≤0.035%
P: Allowable residual content ≤0.035%
Cr: 0.90 ~ 1.20%
Nickel Ni: Allowable residual content ≤0.30%
Copper Cu: Allowable residual content ≤0.30%
Molybdenum Mo: 0.15 ~ 0.25%
Mechanical properties editor broadcast
Hardness: Annealed,147~241HB
1.7225 Mechanical properties of steel:
Tensile strength σb (MPa) : ≥1080(110)
Yield strength σs (MPa) : ≥930(95)
Elongation δ5 (%) : ≥12
Reduction rate of cross-section (%) : ≥45
Impact power Akv (J) : ≥63
Impact toughness value αkv (J/cm2) : ≥78(8)
Hardness: ≤217HB
In order to increase the die life to more than 800 thousand die times, the hardening method of quenching and low temperature tempering can be implemented on the pre-hardened steel. Quenching at 500-600ºC preheat 2-4 hours, and then at 850-880ºC hold heat for a certain time (at least 2 hours), into the oil cooling to 50-100ºC oil air cooling, quenching hardness can reach 50-52HRC, in order to prevent cracking should be immediately 200ºC low temperature tempering treatment, after tempering, hardness can be maintained above 48HRC.
){kind=link}