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42CrMo4 alloy steel pipe and chemical analysis

1.42crmo4 alloy steel pipe

2.OD:6-1200mm WT:1-60mm
3.grade:1020,1025,4130,4140
4.Seamless Steel Mechnical Tubing

42crmo4 alloy steel pipe

seamless steel pipe

Grade and Chemical Composition (%)

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
1008	≤0.10	0.30-0.50	0.040	0.050
1010	0.08-0.13	0.30-0.60	0.040	0.050
1018	0.15-0.20	0.60-0.90	0.040	0.050
1020	0.18-0.23	0.30-0.60	0.040	0.050
1025	0.22-0.28	0.30-0.60	0.040	0.050
1026	0.22-0.28	0.60-0.90	0.040	0.050
4130	0.28-0.33	0.40-0.60	0.040	0.040	0.15-0.35	0.80-1.10	0.15-0.25
4140	0.38-0.43	0.75-1.00	0.040	0.040	0.15-0.35	0.80-1.10	0.15-0.35

42CrMo4 alloy steel chemical analysis

Alloy structural steel: 42CrMo4

Chemical composition:

Carbon C: 0.38 ~ 0.45

Si Si: ≤ 0.40

Manganese Mn: 0.60 ~ 0.90

Sulfur S: allow the residual content ≤ 0.035

Phosphorus P: ≤ 0.035 to allow the residual content

Chromium Cr: 0.90 ~ 1.20

Ni: to allow the residual content ≤ 0.030

Cu: to allow the residual content ≤ 0.030

Mo Mo: 0.15 ~ 0.30

Mechanical properties:

Tensile strength σb (MPa): ≥ 1080 (110)

Yield strength σs (MPa): ≥ 930 (95)

Elongation δ5 (%): ≥ 12

Section shrinkage ψ (%): ≥ 45

Impact energy Akv (J): ≥ 63

Impact toughness values αkv (J/cm2): ≥ 78 (8)

Hardness: ≤ 217HB

Sample size: Sample size is 25mm rough

42CrMo4

Implementation of the standards: EN 10083/3-2006, American Standard AISI 4140 steel improved varieties, good workability of the steel, easily polished, easy to bite flowers, can be plated.

Features and Scope:

Strength, hardenability, toughness, and quenching small deformation, high temperature strength and high creep rupture strength. For the manufacture of higher strength than the steel 35CrMo and quenched forging greater cross-section, such as a large gear locomotive traction, supercharger drive gear, the rear axle, and a great link by the load spring, can also be used below 2000m deep oil drill pipe joints and salvage tools. ① for one piece of electrical, electronic mold. ② plastic mold, mold base.

42CrMo4

Heat treatment and microstructure specifications:

Heat treatment specifications: quenching 850 ℃, oil cooling; tempering 560 ℃, water, oil cooling.

Microstructure: Tempered Sorbite.

Delivery status: to heat treatment (normalizing, annealing, or tempering) or without heat treatment delivery, the delivery status should be specified in the contract.

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