AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar

Product Details
Customization: Available
After-sales Service: Change/Return If Quality Defect
Warranty: 10 Year
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  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
  • AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
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Basic Info.

Standard
AISI, ASTM, GB, JIS, DIN
Technique
Hot Rolled
Application
Structural Steel Bar, Tool Steel Bar, Die Steel Bar
Alloy
Alloy
Special Use
Mold Steel
Lead Time
7days for Stock
Quality Control
PMI Test, Dimension and Visual Inspection
Mtc
En10204 3.1
Transport Package
in Bundles with Metal Strip
Specification
16-450mm on stock
Trademark
Xiang Steel, Daye
Origin
China
HS Code
7225409900
Production Capacity
1000ton/Month

Product Description

AiSi 4140 42CrMo Hot Rolled Alloy Steel Round Bar

Product Introduction
1.7225 classify in the group of low alloy which provide high strength through combination of Chromium and Molybdinum. This result in impact resistance at low temperature.Selling condition is quenched and tempered. Its convenience for further surface hardening in order to enhance surface hardness. Caution is it is not suitable to use at temperature higher than 480c since hardness will sharply fall. Besides, usage or tempering at level 230-270c might cause condition of blue brittleness which will decrease its strength.

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.
AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar
AISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar

Features
   High Strength
   Resistance to fatigue
   Wear resistance
   Forgeability
   High toughness
   Moderate in machinability
   Not good for welding
   Moderate in control carbon loss at surface.
   Easy to quench, return hardness is 55-60HRC.
   Good for induction
   Can do nitriding , surface hardness is 650 HV
   Easy to do surface hardening such as induction or nitriding
   Can be applied to mold in some case.

Equal Standards
Chinese American German Japanese British
GB AISI DIN JIS BS
42CrMo SAE4140 1.7225 SCM440 EN19
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

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

Applications
1.7225 can be applied to machinery parts which require high strength such as powertrain, joint steering wheel, wheel shaft, piston rod boring bit for oil and gas drilling, water pump parts, high pressure pipe , big size gear, flange and locking tool.
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
Used to under 2000m deep well of oil drill pipe joint and the fishing tool
Used for bending machine mould  
Stock Size
Plate   Thickness 20-120mm
Width 2200mm
Length 4000-10000mm
round bar  Diameter 16-450mm
Length 4000-10000mm
Packing
Antirust oil, Pearl Film, Spacer, Kraft Paper, Wooden Case, Wooden Frame, Ect.
Accept Customized Packing.
Services
Sawing-to-size- Flate/ Round (Vertical Cutting/ Horizontal Cutting machine)
Machine and milling -Plate / Round (Plane washing/ Peeling Machine)
Block Cutting(Customized Size)
Machine Grinding (Grinding Machine/ / Cold Draw Machine)
Side Milling / Round Milling(Plate: 2 / 4 / 6 side milling) / (Round:Cold draw/ Grinding/ Turned, Etc.)
A. Steel plates: Cutting by bandsaw machine, milling, heat treatment, etc
B. Round bars: Cutting by bandsaw machine, peeling, grinding and turned, heat treatment, etc
AISI 4140 42CrMo Hot Rolled Alloy Steel Round BarAISI 4140 42CrMo Hot Rolled Alloy Steel Round Bar

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