| Customization: | Available |
|---|---|
| Type: | Stainless Steel Coils |
| Standard: | GB |
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1.4109 SUS440A 68Cr17 S44002 Martensitic Stainless Steel
440A stainless steel is a high-carbon martensitic stainless steel known for its excellent hardness, wear resistance, and corrosion resistance. With a slightly lower carbon content than 440B and 440C, 440A offers better processability while still providing the high hardness and durability needed for demanding applications.
| Execution standard | ZEICIN Grade | GB | ASTM | JIS | DIN |
| GB | SUS440A | 68Cr17(7Cr17) | S44002 | SUS440A | 1.4109 |
| C | Cr | Mn | Si | Mo | V |
| 0.65~0.75 | 16.00~18.00 | ≤1.00 | ≤1.00 | ≥0.75 | - |
| Co | S | P | Ni | Nb | W |
| - | ≤0.03 | ≤0.04 | ≥0.60 | - | - |
| Process | Temperature Range | Processing specification |
| Annealing | 850~900°C | It is heated to 850~900 °C, and slowly cooled to 600in the furnace, after which the air becomes cool. |
| Hardening | 1010~1065°C | Rapid heating and quenching, quenching should becarried out in air or hot oil. |
| Tempering | 150~370°C | A lower tempering temperature produces a harderfinal product. |
| Property | Value |
| Density | 7.70 g/cm³ |
| Hadness (Rockwell) | 56-59HRC |
| Tensile Strength | ≥700 MPa |
| Yield Strength | ≥570 MPa |
| Elongation | ≥12% |
| Melting Point | 1427-1515ºC |
Our company is a Member of the National Ministry of Science and Technology Key Projects "The 13th Five-Year plan " And enjoys the National government support and financial subsidies.
Shanghai University and Beijing Iron and Steel Research Institute jointly develop production techniques. Due to the high hardness, wear resistance, and corrosion resistance are made of a cutting tool, industrial blade, and surgical instruments, Tellas skilled heat treatment and forging process of SUS440A stainless steel.
Our products are used widely in various industries as high-performance stainless steel raw materials like SUS440A. With both custom and standard sizes for industrial applications, our steady supply chain guarantees a stable quality.
We are sincere and honest in achieving the purpose of serving customers:
Our SUS440A stainless steel is equally, and perhaps better than many leading European, American, or Japanese brands, in terms of performance and reliability, making it a high-demand material for many various applications.
The cost performance of our SUS440A products is superior to that of products in Europe, America, and Japan, so that our customers can enjoy great benefits.
SUS440A stainless steel production cycles can be flexible and tailored to your needs. Normal-sized orders can reach in 40 days, so both urgent and normal needs can be satisfied.
SUS440A stainless steel from our company provides the best dimensional stability and durability. It allows customers to save money while still enjoying high performance, making it a cost-savvy option compared to other premium stainless steels.
1. Exceptional Hardness and Edge Retention
BG42 has superior hardness and edge retention compared to many other steels. This is due to its high carbon content (1.10-1.20%) and vanadium content (1.10-1.30%). These properties make it ideal for precision cutting tools, ensuring sharpness that lasts longer.
2. Durability
BG42 holds its sharpness and geometry better than many other stainless steels, making it highly durable and ideal for high-performance applications.
3. Low Maintenance
Thanks to its exceptional edge retention, BG42 requires less frequent sharpening, making it a reliable choice for professional tools and knives.
4. High Wear and Corrosion Resistance
BG42 has excellent wear and corrosion resistance, making it ideal for tough environments. Its high chromium content (around 14.5%) and molybdenum content (about 4%) provide exceptional protection against wear and corrosion.
Wear Resistance: BG42 resists abrasion, which helps extend the life of the tools and equipment made from it.
Corrosion Resistance: BG42 resists corrosion, even in humid or wet environments, making it perfect for tools exposed to moisture or extreme conditions.
5. Versatility in Applications
BG42 is a versatile material, strong, hard, and ductile. It is used in high-grade cutlery, ball bearings, and parts for aircraft production, making it suitable for applications requiring excellent wear resistance and mechanical properties.
440A stainless steel is widely utilized for applications requiring high hardness, wear and corrosion resistance. Common Use Cases are as follows:
Knives, razors, and surgical instruments
Bearings, Valve parts, and other industry components
Precision tools, such as drills, chisels, and cutting dies
Tactical knives, hunting knives, and other outdoor tools
Yes, we provide customized services for 440A stainless steel. We can adjust the size, thickness, and surface treatment of the raw materials according to customer specifications. Whether you need it for knives, medical devices, or industrial parts, we offer exactly what you need.
Yes, we offer 440A stainless steel in various shapes and sizes, including stainless steel pipes, sheets, plates, strips, and rolls. All products can be cut and processed according to customer requirements.
440A stainless steel has better machinability compared to 440C, making it easier to cut, weld, and form than other high-carbon stainless steels. We also offer precision machining services to ensure your products are dimensioned accurately and perform well under high load conditions.
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