40CrNiMOA Steel
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40CrNiMOA Steel
PRODUCT DETAILS
40CrNiMoA is an ultra-high-strength alloy steel (GB/T 3077 standard) renowned for its exceptional toughness, fatigue resistance, and impact performance under extreme conditions. Combining chromium, nickel, and molybdenum, it delivers superior mechanical properties for aerospace, defense, and heavy engineering applications.
Product Name |
40CrNiMoA Steel | |
Standard |
GB; ASTM; JIS; DIN | |
Similar Grades |
AISI 4340 (US), 34CrNiMo6 (EN/DIN) SNCM439 (JIS) | |
Mechanical Properties |
Tensile Strength |
1,000–1,800 MPa |
Yield Strength |
≥850 MPa | |
Elongation |
≥12% | |
Impact Toughness |
≥63J (-40°C) |
Chemical Composition:
Element | Content (%) |
C | 0.37–0.44 |
Si | 0.17–0.37 |
Mn | 0.50–0.80 |
Cr | 0.60–0.90 |
Ni | 1.25–1.65 |
Mo | 0.15–0.25 |
P/S | ≤0.025 |
FACTORY APPEARANCE
Our extensive product portfolio is designed to meet diverse industrial needs, including: hot rolled steel plates, cold rolled steel plates, seamless and welded steel pipes, galvanized steel and colour coated products, stainless steel sheets and coils, aluminium and nickel products.






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APPLICATION AREAS

Large venues

Mechanical processing

Steel smelting

Tall Buildings

Gear machining

Automobile manufacturing
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Customer Reviews
After comparing several companies, I finally chose this one, and I was not disappointed! The steel surface is smooth and flawless, the weight is sufficient, the customs declaration information is clear and standardized, and the cooperation experience is perfect!

Customer Reviews
This batch of steel exported to Europe was highly praised by the customer during the factory inspection. He said that the material is uniform and the processing performance is good. He has listed us as a preferred supplier. Thank you!

Customer Reviews
The customer service is very professional and familiar with the foreign trade process. They assist throughout the process from quotation to document preparation. Communication is very worry-free. The steel itself is also excellent and very cost-effective!
WHY CHOOSE US
RELIABLE QUALITY
In accordance with international standards, it has strict control and stable performance, and can meet the high requirements of multiple scenarios.
COMPLETE SPECIFICATIONS
A variety of materials and models are available to suit multiple industries, reducing purchases from multiple parties.
PRICE COMPETITIVENESS
With the advantages of scale and supply chain, it has high cost performance and reduces procurement costs.
STABLE SUPPLY
Mature production logistics ensure long-term supply and on-time delivery.
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