• High-performance special steel
Product Description
Using molybdenum as a blade, tempering the toughness in the era of high temperature and heavy load

Material matrix: precisely matched to extreme working conditions

Core gradesPerformance HighlightsHigh temperature yield strength (500℃)Fatigue limit (σ-1)Peak application scenarios
42CrMoThe all-round heavy-duty king≥650MPa≥480MPaCrankshaft/wind power bolts/forging dies
35CrMoDeep hardening + impact resistance≥560MPa≥420MPaOil drilling tools/hydraulic rods
38CrMoAlKing of Nitride Layers--Screw/Precision Gear/Mold Guide Pillar
15CrMoGSpecial steel for power station pipelines≥380MPa(600℃) ≥300MPaSupercritical boiler tubes/thermal pipes

A four-dimensional performance revolution

A revolutionary breakthrough in high-temperature strength

Molybdenum carbide pins the grain boundaries, and the yield strength retention rate at 800℃ is >70%.

42CrMo hot forging die life: 30,000 die castings without thermal cracking** (aluminum liquid 700℃)

◉ 35CrMo oil drill pipe: tensile-torsion composite fatigue life> 2×10⁷ times

◉ 42CrMo wind power bolts: preload attenuation less than 5% in 30 years

Eclipse Fatigue Terminator

corrosive mediaStandard testperformance jump
H₂S acidic environmentNACE  TM0177Critical stress strength ≥35MPa·m⁰·⁵
High temperature and high pressure waterASTM  G36

Corrosion rate ≤0.03mm/year

Molten salt thermal corrosionASTM  G79Oxidation weight gain <5g/㎡·100h

Precision nitriding holy device

38CrMoAl after ion nitriding:

✓ Surface hardness 1100-1400 HV (0.3mm depth)

✓ Friction coefficient reduced to 0.08** (dry friction conditions)

Typical terminal products:

Shale gas valve body forgings (42CrMo): 105MPa sealing pressure, zero leakage

200-ton mining truck axle (35CrMo): flexural stiffness reaches 1800kN·m/rad

P92-grade power plant bolts (15CrMoG): 650°C relaxation life >100,000 hours

Quality Control: Exceeds nuclear power standards

key indicators | GB/T 3077 | Meixinchang Internal Control

Grain size:≥Level 5 **≥Level 8**

Hardenability bandwidth:≤6HRC ≤3HRC

High temperature lasting strength: 650℃/100h/130MPa 650℃/300h/150MPa

Cleanliness: [O]≤15ppm [O]≤8ppm

► Each batch is accompanied by: end quenching curve + nitride layer hardness gradient diagram + high temperature endurance test report

A record of solving industry pain points

fieldfailure nightmareMeixinchang SolutionsCustomer benefits
Die casting industryMold crack life < 5,000 molds42CrMo+nano composite coatingLife span exceeds 35,000 mold times
Oilfield equipmentSulfide stress cracking of sucker rods35CrMo+rare earth purification processContinuous operation > 2 years with zero failure
energy powerMain steam bolts loosened at high temperature15CrMoG+thermal treatment30-year replacement-free design

Choose the five irreplaceable factors of Meixinchang

✅ Material Genome Database: 10 years of accumulated data on over 500 heat treatment process parameters, freely accessible

✅ Extreme Nitriding Technology: 38CrMoAl nitriding layer depth reaches 0.8mm (compared to 0.3mm in the industry)

✅ Digital Twin Prediction: Upload a 3D model, and AI-simulated fatigue life with an error of <5%

✅ Full Process Traceability: Blockchain records 107 quality control data points from smelting to finished product

✅ Emergency Mobilization Capability: 72-hour delivery of 600mm Φ heavy forgings


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