The 42CrMo Alloy Steel Plate is a premium-grade quenched and tempered steel widely recognized for its high strength, toughness, and excellent fatigue resistance. Manufactured under international standards such as ASTM, DIN, and EN, it is specifically designed for heavy-duty engineering and industrial applications.
With an optimized chemical composition of chromium and molybdenum, the plate offers outstanding wear resistance, corrosion protection, and impact toughness even under extreme working conditions. Each plate supplied by Jiangsu Cunrui Metal Products Co., Ltd. is accompanied by mill test certificates (MTC), third-party inspection reports, and material traceability documents, ensuring full compliance with global quality standards.

Key Features & Advantages
High Mechanical Strength – Excellent yield and tensile properties after heat treatment.
Superior Wear & Fatigue Resistance – Performs reliably in dynamic load environments.
Enhanced Corrosion Protection – Chromium and molybdenum alloying provides stable performance.
Global Standard Compliance – Produced according to ASTM A829, DIN EN 10083, and other standards.
Quality Guarantee – Full documentation including ultrasonic testing and third-party approvals.
Applications
The 42CrMo Alloy Steel Sheet is widely used in industries that demand high mechanical performance and reliability, such as:
Machinery manufacturing – gears, shafts, crankshafts, and heavy-duty equipment parts.
Automotive & aerospace – structural components requiring fatigue resistance.
Energy & power – turbine components, hydraulic systems, and pressure vessels.
Mining & construction – wear-resistant machine parts, tools, and drilling equipment.

Product Specifications & Technical Parameters
|
Property |
Specification (Typical) |
|
Grade |
42CrMo |
|
Standard |
ASTM A829 / EN 10083 / DIN 17200 |
|
Thickness Range |
8 – 300 mm (customizable) |
|
Width |
1500 – 3500 mm |
|
Length |
3000 – 12000 mm |
|
Hardness (HB) |
197 – 269 (after heat treatment) |
|
Yield Strength |
≥ 930 MPa (quenched & tempered) |
|
Tensile Strength |
1080 – 1230 MPa |
|
Elongation |
≥ 12% |
|
Surface Finish |
Black, pickled, coated, or polished |
Customization Services
Production of special dimensions upon request.
CNC cutting, drilling, bending, and machining according to drawings.
Surface treatment options: galvanizing, painting, polishing, or protective coating.
Flexible MOQ policy and short lead times for urgent projects.
Customized material grades available to meet diverse application needs.
Price & Delivery
Competitive unit prices with discounts for bulk orders.
Ready-to-ship stock for standard sizes.
Controlled production cycles with reliable shipping schedules to all major ports worldwide.

Our Strength
Advanced steel processing facilities with large annual capacity.
More than 15 years of export experience to over 60 countries.
Certified by ISO 9001, SGS, TUV, and other quality systems.
Professional technical team providing material selection and application solutions.


Service & Support
Fast inquiry response within 12 hours.
Engineering support and technical advice available.
Export-standard seaworthy packaging to protect goods during transit.
After-sales policy covering product replacement or refund for verified quality issues.
FAQ
Q1: What are the main advantages of 42CrMo Alloy Steel Plate compared to standard carbon steel?
A1: It provides higher strength, better wear resistance, and greater fatigue life, making it suitable for heavy-duty industrial use.
Q2: Do you supply mill test certificates and third-party inspection?
A2: Yes, we provide EN 10204 3.1/3.2 certificates along with SGS, BV, or Lloyd's inspection as required.
Q3: Can the 42CrMo Alloy Steel Sheet be customized for specific projects?
A3: Absolutely, we offer custom cutting, machining, and surface treatments based on drawings and technical requirements.
Q4: What is your minimum order quantity (MOQ)?
A4: We accept flexible MOQs to support both small-scale projects and bulk procurement.
Q5: How fast is delivery?
A5: For standard stock sizes, delivery can be arranged immediately, while custom orders typically take 7–20 working days.
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