440: High-strength cutting tool steel with slightly higher carbon content. After appropriate heat treatment, it can obtain a higher yield strength. The hardness can reach 58HRC, which is among the hardest stainless steels. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy-to-process type).
Specifications | In stock, can be customized according to customer requirements |
Form | Plate, rod, roll, tube, strip, wire |
Classification | Ferritic and martensitic steels |
Type | 304l stainless steel seamless pipe |
Grade | 201,304,310,316,316l,317l,321 ,409,410,430,410s,904l,2205 etc. |
Surface Finish | 2B, BA,4K,8K, NO.1,2D,3#, HL |
Size Range | From 4mm to 800mm800mm |
Wall Thickness Range | From 1mm to 150mm (SCH10-XXS) |
Length Options | 4000mm, 5800mm, 6000mm, 12000mm, or as required. |
Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc |
Type | Round, square, rectangular, hexagonal, flat, angle |
Technique | Cold rolled, hot rolled |
MOQ | 1 ton, We can accept sample order. |
Delivery port: | Shanghai, Tianjin, Qingdao, Ningbo, Guangzhou, etc. |
Packaging Detail | Standard export packaging, various transportation, according to customer needs |
Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
ASTM A276 | S44004/440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
EN10088 | X105CrMo17/1.4125 | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | 0.40-0.80 |
JIS G4303 | SUS 440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
Grade | internal strength N/mm2 | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | HB | ||
| Annealing | Quenching and tempering | ||||
440c | 250 | ≥560 | ≥18 | 255 | ≤269HB | ≥58HRC |
440c stainless steel pipeis mainly used to manufacture bearing parts working in corrosive environments and non-lubricating strong oxidizing atmospheres. 440C has good high-temperature dimensional stability, so it can also be used as corrosion-resistant high-temperature bearing steel. In addition, it can also be used to make high-quality cutting tools, such as medical scalpels, scissors, nozzles, bearings, etc. 440C has a lower ability to withstand dynamic loads.
440c stainless steel pipeis also widely used in manufacturing aerospace equipment. In the aerospace industry, the quality and reliability of materials are crucial.
440c stainless steel tubes are also used to make high-end watches. Watch manufacturers like to use high-quality stainless steel materials to make watch cases.
440C stainless steel plateis a high-performance stainless steel material that is widely used in many fields, including medical equipment, aerospace, cutting tools, and watch manufacturing.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
Machine cutting
Sheet cutting
plasma cutting
Dynamic waterjet cutting
sawing
Plank leveling
polishing
laser cutting
laser cutting
production cutting
Long product cutting
Bar and structural cutting
polishing
Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
Our professional sales team answers your questions within 24 hours.
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