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1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength

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1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength

Brand Name : CF Steel

Model Number : SAE4140,1.7225,SCM440,EN19, 42CrMo4

Certification : ISO/TUV/SGS

Place of Origin : China

MOQ : Negotiable

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 1000tons/month

Delivery Time : 7-15days

Packaging Details : standard/customized

Material : alloy steel

Process tech. : hot rolled/forged

Application : mechanical

Diameter : 16-450mm

Heat Treatment : Annealing/Q+T

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1.7225/SAE4140/SCM440/42CrMo4 Alloy Steel Bar for mechanical

Introduction
42CrMo steel is an ultra-high strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good low temperature impact toughness.


Steel Grade

Chinese American German Japanese
GB AISI DIN JIS
42CrMo SAE4140 1.7225 SCM440

Chemical composition%

Grades C Si Mn P S Cr Mo Cu Ni
4140 0.38-0.45 0.17-0.37 0.5-0.8 ≤0.035 ≤0.035 0.9-1.2 0.15-0.25 ≤0.3 ≤0.035
42CrMo 0.38-0.45 0.17-0.35 0.5-0.8 ≤0.035 ≤0.035 0.9-1.2 0.15-0.25 ≤0.03 ≤0.03
440 0.38-0.43 0.15-0.35 0.6-0.85 ≤0.03 ≤0.03 0.9-1.2 0.15-0.3 ≤0.3 ≤0.25

Heating treatment

Quenching Tempering
Heating Temperature/ºC Cooling Hardness/HRC Heating Temperature/ºC Cooling Hardness/HRC
820-840 Oil ≥53 450-650 Air 25-40

Available Sizes

steel plate
 Thickness 20-120mm
Width 2200mm
Length 4000-10000mm
round bar
 Diameter 16-450mm
Length 4000-10000mm

Features
1) Weldability suffers with increasing chromium content;
2) High temperature strength and high pressure hydrogenation properties are promoted by chromium and molybdenum;
3) Molybdenum significantly reduces temper brittleness;
4) Chromium renders steel oil hardenable and increase hardenability;
5) Chromium molybdenum high tensile steel with yield strength of 550N/mm2

Applications
1) Suitable for manufacturing requirment a certain strength and toughness of large and medium-sized plastic mold, such as locomotive traction with the big gear, the supercharger drive gear, pressure vessle, rear axle, gear load connecting rod and a spring clip
2) Used to under 2000m deep well of oil drill pipe joint and the fishing tool
3)Used for bending machine mould

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1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength

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1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength

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1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength


Product Tags:

engineering special steels

      

h13 tool steel

      
China 1.7225 SAE4140 SCM440 42CrMo4 Engineering Alloy Steel Bar High Temperature Strength factory

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