Welded steel pipe is a seamed steel pipe. The production process is to bend the pipe blank (steel plate and steel strip) into a tube of the required cross-sectional shape and size by various forming methods, and then weld the weld by different welding methods. The process of obtaining a steel pipe. Compared with seamless steel pipes, welded pipes have the characteristics of high product precision,especially wall thickness accuracy, simple main equipment, small footprint, continuous operation in production, flexible production, and wide product range of the unit.
From the production process,welded pipes are further divided into: Spiral Submerged Arc Welding; LSAW (Longitudinally Submerged Arc Welding); ERW (Electric Resistance Welding).
KUAIMA steel company has more than ten years of experience in diversified operations and multi-product transactions, involving round bar, ship plate, seamless pipe, plate, coil, wire, bright bar, pipe fittings and a wide range of carbon steel, alloy steel And more product sizes of stainless steel materials, these products we produce meet national and international quality standards, such as ASTM, ASME, DIN, JIS, ISO, etc. The company has 25 production lines for various products, with an annual output of 500,000 tons, and is committed to Provide high-quality steel products and provide supporting services and solutions for global customers. Welcome to KUAIMA steel company.
Grade | C | Si | Mn | P | S | Cr | Ni | Cu |
Q235A | ≤0.22 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.050 | ≤0.3 | ≤0.3 | ≤0.3 |
Q236B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 | ≤0.3 | ≤0.3 | ≤0.3 |
Q237C | ≤0.17 | ≤0.35 | ≤1.40 | ≤0.040 | ≤0.040 | ≤0.3 | ≤0.3 | ≤0.3 |
Q238D | ≤0.17 | ≤0.35 | ≤1.40 | ≤0.035 | ≤0.035 | ≤0.3 | ≤0.3 | ≤0.3 |
Grade | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation at Break (%) |
Q235A | 235 | 370-500 | 26 |
Q235B | 235 | 370-500 | 26 |
Q235C | 235 | 370-500 | 26 |
Q235D | 235 | 370-500 | 26 |
Product Name | ASTM ASTM A106-B A178-C A199 A210-C A213 T91 A315-B A333 A335 LSAW ERW SSAW Round Square Rectangle Spiral welded steel pipe |
Standard | BS EN GB AiSi ASTM DIN JIS,etc |
Material | 200/300/400 series,astm A312/213/249/269/270/358/Tp304/304L/304H/ 316/316L/317/317L/321/310/347/904L etc. |
Thickness | 1.5mm-100mm |
Length | 1-12m or as your requirement,Ready to ship pipes are 6m long |
Outside Diameter | OD22mm-3020mm |
Technique | ERW |
MOQ | 1ton |
Packing | Packed in bundles with 6-8 pcs steel strips Packed in bundles with 6-8 pcs steel strips, and wrapped with waterproof cloth Packed as your request |
Application | Construction,machine structure pipe, Agriculture equipment pipe,Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc. |
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Welded Steel Pipes are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry .
oil and gas
Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.
energy
Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.
construction
Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.
marine
Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.
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