Product Description
42CrMoS4 round steel
42CrMoS4 steel plate
42CrMoS4 steel pipe
42CrMoS4 alloy
. Introduction
42CrMoS4 is a high-strength alloy steel with high wear resistance, thermal strength and tensile strength. The material is widely used in the manufacture of high load mechanical parts and other fields.
2. Performance
42CrMoS4 has high hardness, high strength, high wear resistance, good weldability and heat treatment performance.
3. Price
42CrMoS4 price is relatively high, mainly because of its component proportion, processing difficulty and other factors.
4. Component analysis
The main components of 42CrMoS4 are: Chromium (Cr) content is 0.9-1.2%, molybdenum (Mo) content is 0.15-0.3%, silicon (Si) content is 0.15-0.4%, manganese (Mn) content is 0.5-0.8%, phosphorus (P) content is below 0.025%, sulfur (S) content is below 0.035%, carbon (C) content is 0.38-0.45%.
5. Summary
42CrMoS4 is a high-strength alloy steel with high hardness, high strength, high wear resistance, good weldability and heat treatment properties at a relatively high price.
6. What is it made of
42CrMoS4 is a high strength alloy steel.
7. Material name
42CrMoS4
8. Material properties
High hardness, high strength, high wear resistance, good weldability and heat treatment performance.
9. Factory status
42CrMoS4 can be in the form of bar, plate, pipe factory.
10. Main features
42CrMoS4 has high hardness, high strength, high wear resistance, good weldability and heat treatment properties, suitable for manufacturing high load mechanical parts and other fields.
11. Main applications
42CrMoS4 is widely used in the manufacture of high load mechanical parts and other fields, such as manufacturing gears, bearings, cutting tools, drills, automotive parts, etc.
12, processing and polishing
42CrMoS4 processing is difficult, the need to use high-strength tools for processing. When polishing, it can be treated with a grinder or hand grinding tool to achieve the required surface finish.
42CrMos4 steel belongs to ultra-high strength steel, with high strength and toughness, hardenability is also good, no obvious tempering brittleness, tempering treatment after higher fatigue limit and resistance to multiple impacts, low temperature impact toughness is good. 42CrMo steel is suitable for manufacturing large and medium-sized plastic molds requiring certain strength and toughness.
42CrMos4 chemical composition knitting
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%
42CrMos4 Mechanical properties
Hardness: Annealed,147~241HB
42CrMo Mechanical properties:
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
42CrMos4 In order to improve the die life to reach more than 800 thousand die times, the hardening and low temperature tempering of the pre-hardened steel can be implemented. 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.