A stainless steel seamless pipe is a tubular product made from stainless steel without any welded seams or joints along its length. These pipes are produced using a specialized seamless manufacturing process, which involves extruding a solid billet of stainless steel through a piercing rod to create a hollow tube. Seamless stainless steel pipes are known for their strength, corrosion resistance, and suitability for high-pressure and high-temperature applications.
WUXI KONGZO STEEL is a leading stainless steel coil supplier, offering the best price and service. We can process orders to any specification, length, and thickness, and then do quality inspection and packaging.
| Type | 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 4mm4mm 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 |
| AISI | Chemical Composition & Mechanical Property | |||||||||||
| C | Si | Mn | Cr | Ni | S | P | Ts（N/mm ²） | Ys（N/mm ²） | El | HB | HRB | |
| 201 | ≤0.15 | ≤0.75 | 5.5-5.7 | 16-18 | 3.5-5.5 | ≤0.03 | ≤0.060 | ≥520 | ≥275 | ≥40% | ≤241 | ≤100 |
| 202 | ≤0.15 | ≤1 | 7.5-10 | 17-19 | 4-6 | ≤0.03 | ≤0.060 | ≥520 | ≥275 | ≥40% | ≤207 | ≤95 |
| 304 | ≤0.08 | ≤1.0 | ≤2.0 | 18-20 | 8-10 | ≤0.03 | ≤0.045 | ≥520 | ≥205 | ≥40 | ≤187 | ≤90 |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | 18-20 | 9-13 | ≤0.03 | ≤0.045 | ≥480 | ≥175 | ≥40 | ≤187 | ≤90 |
| 316 | ≤0.08 | ≤1.0 | ≤2.0 | 16-18 | 10-14 | ≤0.03 | ≤0.045 | ≥520 | ≥205 | ≥40 | ≤187 | ≤90 |
| 316L | ≤0.03 | ≤1.0 | ≤2.0 | 16-18 | 12-15 | ≤0.03 | ≤0.045 | ≥480 | ≥175 | ≥40 | ≤187 | ≤90 |
| 410 | ≤0.15 | ≤1.0 | ≤1.0 | 11.5-13.5 | ≤0.03 | ≤0.040 | ≥440 | ≥205 | ≥20 | ≤201 | ≤93 | |
| 430 | ≤0.12 | ≤0.75 | ≤1 | 16-18 | ≤0.60 | ≤0.03 | ≤0.040 | ≥450 | ≥205 | ≥22 | ≤183 | ≤88 |
Stainless steel seamless pipes find applications across various industries due to their unique combination of properties. Common applications include:
1）Oil and Gas Industry: Used for transporting oil, gas, and petrochemicals in pipelines and offshore platforms due to their corrosion resistance and ability to withstand high-pressure environments.
2）Chemical Processing: Employed in the chemical industry for conveying corrosive chemicals, acids, and bases safely.
3）Food and Beverage Industry: Found in food processing plants for conveying and processing various food products, as stainless steel is hygienic and easy to clean.
4）Pharmaceutical: Used in pharmaceutical manufacturing for transporting and processing chemicals and pharmaceutical products under sanitary conditions.
5）Marine and Offshore: Employed in marine environments for seawater-resistant piping systems on ships, vessels, and offshore structures.
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.
Wuxi Walmay Metal CO., LTD
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