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Hot Rolled 42CrMo4 Grade Alloy Steel Round Bar with 1m-6m Length for Structural and Tool Applications

1000 Kilogram
MOQ
$0.60 / Kilogram
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Hot Rolled 42CrMo4 Grade Alloy Steel Round Bar with 1m-6m Length for Structural and Tool Applications
Features Gallery Product Description Request A Quote
Features
Specifications
Steel Grade: 42CrMo4
Alloy Or Not: Is Alloy
Technique: Hot Rolled
Application: Structural Steel Bar,Die Steel Bar,Tool Steel Bar
Standard: ASTM,DIN,GB,AISI,JIS
Shape: Round
Length: 1m-6m,as Your Request
Material: Die Alloy Steel Round Bars
Surface: Black Or Bright
Product Name: Alloy Steel Round Bar 40Cr 4140 D2 Alloy Steel Round Bars
Diameter: 12mm-650mm
Delivery Condition: Within15 Days After Received The Deposit
Highlight:

Alloy Steel Round Bar

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42CrMo4 Alloy Steel Round Bar

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42CrMo4 Hot Rolled Mild Steel
Basic Infomation
Place of Origin: Tianjin
Brand Name: Gnee
Certification: SGS
Model Number: 42CrMo4
Document: 42CrMoS4.pdf
Payment & Shipping Terms
Packaging Details: Steel strip packed,Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Payment Terms: L/C,D/A,D/P,T/T,Western Union,
Supply Ability: 1000 Ton/Tons per Month
Product Description
Hot Rolled 42CrMo4 Die Alloy Steel Round Bar
42CrMo4 is a heat treatable steel containing at least 0.9% chromium and 0.15% molybdenum as strengthening elements. After quenching and tempering, it achieves high strength and good low-temperature impact toughness with a typical tensile strength of 900-1200 N/mm². This material offers superior performance compared to 34CrMo4 steel due to higher bon and chromium content. Similar to AISI 4140 with minor differences in manganese and chromium content, 42CrMo4 provides good machinability and wear resistance, with minimal temper brittleness but limited weldability.
Product Specifications
Item Alloy steel bar, alloy steel rod, steel bar, steel rod
Standard ASTM, AISI, SUS, GB, JIS, DIN
Material 10#, 15#, 20#, A105, 1010, 1015, 1020, 1030, S25C, S35V, 1035, 1050, 1060, 20Mn, 25Mn, 30Mn, 40Mn, 50Mn, 130, 20Mn2, 30Mn2, 35Mn2, 15Cr, 15CrMo, 42CrMo, 42CrMo4, 34CrMo4, 30CrMo, 12CrMo, 40Cr, 35CrMo, C45, 1045, 4130, 3140, 4140, 4145, 4137, 5115, etc.
Dimensions
  • Round bar: Diameter: 2-1000mm, Length: 1-12m, or as required
  • Flat bar: Thickness: 0.3-500mm, Width: 2-3000mm, Length: 1-12m, or as required
  • Square bar: Diameter: 2×2-800×800mm, Length: 1-12m
  • Angle bar: Width: 10×10-500×500mm, Thickness: 2-150mm, Length: 1-12m
  • Hexagonal bar: Diameter: 4-800mm, Length: 1-12m, or as required
Surface & Treatment
  • Surface: Polished, bright, black, coated, 2b, ba, mirror, NO.4, 8K
  • Treatment: Hot rolled, cold drawn, forged
  • Package: Standard export seaworthy or as customers' requirements
Applications
Products are widely used in automotive, petroleum, chemical, coal, electric power, machinery manufacturing, railway transportation, and other industries, as well as aerospace, aviation, and navigation. Particularly in railway, wind power, nuclear power, power station boilers, automotive, engineering machinery, and other key industries.
Surface Finish & Tolerance
Surface Finish Black-Forged Black-Rolled Turned Grinding Polished Peeled Cold Drawn
Tolerance (0,+5mm) (0,+1mm) (0,+3mm) Best h9 Best h11 Best H11 Best H11
Chemical Composition
Grade C Si Mn Cr Mo P S
42CrMo4/1.7225 0.38-0.45 ≤ 0.4 0.6-0.9 0.9-1.2 0.15-0.3 ≤ 0.025 ≤ 0.035
42CrMoS4/1.7227 0.38-0.45 ≤ 0.4 0.6-0.9 0.9-1.2 0.15-0.3 ≤ 0.025 0.02-0.04
Relevant Standards
USA UK China Japan France
4140 EN19/708M40 42CrMo SCM440 42CD4 42HM
Mechanical Properties
Diameter d mm ≤ 16 16-40 40-100 100-160 160-250
Thickness t mm < 8 8-20 20-60 60-100 100-160
Yield Strength MPa ≥900 ≥750 ≥650 ≥550 ≥500
Tensile Strength MPa 1100-1300 1000-1200 900-1100 800-950 750-900
Elongation, % ≥10 ≥11 ≥12 ≥13 ≥14
Reduction of area, % ≥40 ≥45 ≥50 ≥50 ≥55
Impact ≥30 ≥35 ≥35 ≥35 ≥35
Product Images
42CrMo steel round bar product display 42CrMo alloy steel bar close-up view
Frequently Asked Questions
Are you a trading company or manufacturer?
We are a trading and manufacturer combination.
How long is your delivery time?
Generally 5-10 days if goods are in stock, or 15-20 days if not in stock, depending on quantity.
Do you provide samples? Is it free or extra?
Yes, we offer samples free of charge but do not cover freight costs.
What are your payment terms?
Payment ≤ 1000 USD: 100% in advance. Payment ≥ 1000 USD: 30% T/T in advance, balance before shipment.
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