The 42CrMo4 Structural Steel Bar is a high-strength alloy steel rod widely used in engineering and industrial applications. Made from premium 42CrMo4 steel, it offers excellent mechanical performance, including high tensile and yield strength, superior toughness, and wear resistance. Our rods conform to international standards such as ASTM, DIN, and ISO, ensuring reliability and consistent quality. Every batch undergoes rigorous testing, including chemical composition analysis, mechanical property verification, and surface integrity checks. Customers receive comprehensive material certificates (MTC) and optional third-party inspection reports, confirming the rod's suitability for critical applications.
Key Features & Advantages
High Strength & Durability: Superior tensile and yield strength compared with standard carbon steel rods.
Corrosion & Wear Resistance: Enhanced surface hardness and microstructure stability improve longevity.
Certified Quality: Supplied with material certificates and third-party inspection options, fully compliant with international standards.
Consistent Performance: Strict quality control ensures uniform mechanical properties across all rods.
Compared to ordinary structural steel, the 42CrMo4 Structural Steel Rod provides higher strength-to-weight ratio and better reliability for demanding applications.
Applications
Our 42CrMo4 Structural Steel Bar is suitable for a wide range of industries, including:
Automotive and heavy machinery components
Aerospace and precision engineering
Industrial shafts, gears, and mechanical parts
Tooling and molds
Energy and power transmission applications
Product Specifications & Technical Data
|
Parameter |
Value |
|
Material |
42CrMo4 Alloy Steel |
|
Standard |
ASTM A29 / DIN 1.7225 / ISO 683-1 |
|
Diameter |
10 – 200 mm (customized) |
|
Length |
1 – 12 m (customized) |
|
Surface Finish |
Hot-rolled, Cold-drawn, Polished |
|
Hardness |
207 – 241 HB (depending on heat treatment) |
|
Yield Strength |
≥ 850 MPa |
|
Tensile Strength |
950 – 1100 MPa |
|
Elongation |
≥ 12% |
|
Certifications |
ISO 9001, MTC, Third-party inspection optional |
Note: Custom sizes and specifications can be tailored based on customer requirements.
Chemical Composition
|
Element |
Content (%) |
|
Carbon (C) |
0.38 – 0.45 |
|
Chromium (Cr) |
0.90 – 1.20 |
|
Molybdenum (Mo) |
0.15 – 0.30 |
|
Manganese (Mn) |
0.60 – 0.90 |
|
Silicon (Si) |
0.17 – 0.37 |
|
Sulfur (S) |
≤ 0.035 |
|
Phosphorus (P) |
≤ 0.035 |
Customization Services
Jiangsu Cunrui Metal Products Co., Ltd. supports full customization for the 42CrMo4 Structural Steel Rod, including:
Special diameters, lengths, or tolerances
Surface treatments: phosphating, polishing, coating
Processing: cutting, drilling, welding, or machining according to drawings
Flexible MOQ and fast response for urgent projects
Multiple alloy options available for specific mechanical requirements
Price & Delivery
Competitive pricing with discounts for bulk orders
Fast and reliable lead times, with partial stock available for immediate dispatch
Customized delivery schedules according to project needs
Secure and export-compliant packaging to ensure product safety during transportation
Our Strength
Large-scale production facilities with modern rolling, heat treatment, and finishing equipment
Annual production capacity exceeding 50,000 tons of alloy steel products
Rich export experience to Europe, North America, and Southeast Asia
Professional R&D and technical team for material innovation and customer support
ISO 9001 certified production and strict quality control at every stage
Service & Support
Quick inquiry response, professional technical guidance, and consultation
Product packaging and logistics comply with international export standards
Comprehensive after-sales support: replacements or returns for quality issues
Tailored solutions to match specific project requirements
FAQ
Q1: Can you supply custom lengths or diameters?
A1: Yes, we can customize diameter, length, and tolerances according to customer drawings.
Q2: Do you provide material certificates?
A2: All rods come with MTC, and third-party inspection is optional.
Q3: What is the lead time for bulk orders?
A3: Usually 20-30 days, depending on quantity and customization; partial stock may reduce delivery time.
Q4: Can you process the rods (cutting, drilling, welding)?
A4: Yes, we offer full processing services according to customer requirements.
Q5: Are these rods compliant with international standards?
A5: Yes, our 42CrMo4 Structural Steel Rod meets ASTM, DIN, and ISO standards.
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