Welded Steel Pipe
Welded steel pipe is formed by rolling plate and welding the seam. It is cost-effective pipe with tighter dimensional tolerances and less weight. It is intended for conveying gas, vapor, water or other liquid in low and medium pressure ambient, such as water mains system, sewerage system, oil and gas pipeline, fire protection service, etc.
As one of the professional welded steel pipe manufacturers in China, Topper provides welded steel pipe in advanced technology to remove the weld flash from both inner and outer surfaces. We offer an extensive selection of welded pipe including ERW steel pipe, LSAW steel pipe, SSAW steel pipe with high accuracy, uniform wall thickness, high brightness of inner and outer surface, lighter weight, corrosion resistance in acid, alkali, salt and atmospheric environment, high temperature resistance, good impact resistance and fatigue resistance, excellent mechanical properties and easier machining process.
The welded steel pipe we provide is in accrod with specifications as follows:
Standard: ASTM, GB, API, JIS, BS, DIN, YB, SNY, ASTM A53, API-5L, ASTM B36.10, ASTM A135, ASTM A795, ASTM A78, ASTM A178M, ASTM A500, ASTM A252, BS 1387, EN 10255, JIS G3444, ASTM A139 Grade B, ASTM A252 Grades 2 & 3, ASTM A691, ect.
Wall Thickness: 3/10-2 Inch, 0.315 - 1.969 Inch or customized.
Outer Diameters: 1/2 - 143 Inch, or as requested.
Length: Less Than 12m, up to 12m, 6m-12m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's welded steel pipe and piping system needs.
As one of the professional welded steel pipe manufacturers in China, Topper provides welded steel pipe in advanced technology to remove the weld flash from both inner and outer surfaces. We offer an extensive selection of welded pipe including ERW steel pipe, LSAW steel pipe, SSAW steel pipe with high accuracy, uniform wall thickness, high brightness of inner and outer surface, lighter weight, corrosion resistance in acid, alkali, salt and atmospheric environment, high temperature resistance, good impact resistance and fatigue resistance, excellent mechanical properties and easier machining process.
The welded steel pipe we provide is in accrod with specifications as follows:
Standard: ASTM, GB, API, JIS, BS, DIN, YB, SNY, ASTM A53, API-5L, ASTM B36.10, ASTM A135, ASTM A795, ASTM A78, ASTM A178M, ASTM A500, ASTM A252, BS 1387, EN 10255, JIS G3444, ASTM A139 Grade B, ASTM A252 Grades 2 & 3, ASTM A691, ect.
Wall Thickness: 3/10-2 Inch, 0.315 - 1.969 Inch or customized.
Outer Diameters: 1/2 - 143 Inch, or as requested.
Length: Less Than 12m, up to 12m, 6m-12m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's welded steel pipe and piping system needs.
ERW (Electric Resistance Welded) pipe is a straight seam electric resistance welded pipe, a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe, which is commonly used for oil, gas, water transmission, machinery manufacturing, etc. It has sturdy frame which is strong enough to make sure of the stable operation. And it is resistant to water, oxygen and corrosion, which is endurable with long life span.
As a trustworthy ERW pipe manufacturer in China, TOPPER offers ERW steel pipe with high dimensional accuracy, good mechanical properties, high concentricity, uniform wall thickness, good steel extension, better straight seam sewing machine, great pipe flattening test, higher impact toughness and rigorous on-line heat treatment.
ERW steel pipes are available in various qualities, wall thicknesses and diameters of the finished pipes:
Standards: API 5L, API 5CT, ASTM A53, ASTM A500, ASTM A252, ASTM A178, BS 1387, EN 10219, EN 10210, EN10217, DIN 2458, IS 3589, JIS G3452, JIS G3466, AN/NZS 1163, AN/NZS 1074, SY/T 5768-2006, GB/T 3091-2008, GB/T 9711-1, JIS G3444, JIS G3452, API 5L PSL1/PSL2 Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70, etc.
Wall Thickness: 1/20-4/5 Inch, 0.059-0.874 Inch, 1.5-22.2mm or customized.
Outer Diameters: 0.839-25.984 Inch, 21.3mm-660mm or as requested.
Length: 0.3-18m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's ERW steel pipe and piping system needs.
As a trustworthy ERW pipe manufacturer in China, TOPPER offers ERW steel pipe with high dimensional accuracy, good mechanical properties, high concentricity, uniform wall thickness, good steel extension, better straight seam sewing machine, great pipe flattening test, higher impact toughness and rigorous on-line heat treatment.
ERW steel pipes are available in various qualities, wall thicknesses and diameters of the finished pipes:
Standards: API 5L, API 5CT, ASTM A53, ASTM A500, ASTM A252, ASTM A178, BS 1387, EN 10219, EN 10210, EN10217, DIN 2458, IS 3589, JIS G3452, JIS G3466, AN/NZS 1163, AN/NZS 1074, SY/T 5768-2006, GB/T 3091-2008, GB/T 9711-1, JIS G3444, JIS G3452, API 5L PSL1/PSL2 Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70, etc.
Wall Thickness: 1/20-4/5 Inch, 0.059-0.874 Inch, 1.5-22.2mm or customized.
Outer Diameters: 0.839-25.984 Inch, 21.3mm-660mm or as requested.
Length: 0.3-18m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's ERW steel pipe and piping system needs.
The LSAW steel pipe is a longitudinally submerged arc welding steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe, used for oil, gas, water transmission, engineering, offshore projects.
As a responsible LSAW steel pipe manufacturer in China, TOPPER provides longitudinally submerged arc welding steel pipe with simple production process, high production efficiency, low cost and high quality. Our LSAW pipes destroy the ingot casting structure, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the lsaw steel pipe is no longer an isotropic body to a certain extent; bubbles, cracks and looseness formed during pouring can also be welded under high temperature and pressure.
LSAW steel pipes follow the specifications as below:
Standards:
API 5L: GR B, X42, X46, X56, X60, X65, X70.
ASTM A53: GR A, GR B, GR C.
EN: S275, S275JR, S355JRH, S355J2H.
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555.
API 5L PSL1, API 5L PSL2, ASTM A53, ASTM 572, ASTM A252, AN/NZS 1163, AN/NZS 1074, EN 10219-1, EN 10217-1, DIN 2458, IS 3589, GB/T 3091, GB/T 9711, ect.
Wall Thickness: 0.276-1.969 Inch, 7-50mm or customized.
Outer Diameters: 8.622-63.976 Inch, 219mm-1625mm or as requested.
Length: 5.8m, 6m, 11.8m, 12m, up to 12m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's LSAW steel pipe and piping system needs.
As a responsible LSAW steel pipe manufacturer in China, TOPPER provides longitudinally submerged arc welding steel pipe with simple production process, high production efficiency, low cost and high quality. Our LSAW pipes destroy the ingot casting structure, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the lsaw steel pipe is no longer an isotropic body to a certain extent; bubbles, cracks and looseness formed during pouring can also be welded under high temperature and pressure.
LSAW steel pipes follow the specifications as below:
Standards:
API 5L: GR B, X42, X46, X56, X60, X65, X70.
ASTM A53: GR A, GR B, GR C.
EN: S275, S275JR, S355JRH, S355J2H.
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555.
API 5L PSL1, API 5L PSL2, ASTM A53, ASTM 572, ASTM A252, AN/NZS 1163, AN/NZS 1074, EN 10219-1, EN 10217-1, DIN 2458, IS 3589, GB/T 3091, GB/T 9711, ect.
Wall Thickness: 0.276-1.969 Inch, 7-50mm or customized.
Outer Diameters: 8.622-63.976 Inch, 219mm-1625mm or as requested.
Length: 5.8m, 6m, 11.8m, 12m, up to 12m or as requested.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's LSAW steel pipe and piping system needs.
SSAW steel pipe (Spiral Submerged Arc-Welding Pipe), also called HSAW pipe (Helical SAW), welding line shape like a helix. It uses the welding technology of spiral submerged arc-welding. There is a wide application for SSAW steel pipes, such as oil and gas pipeline systems, construction structure, water transport and sewage treatment, thermal industry, buildings, etc.
As a professional SSAW steel pipe manufacturer in China, TOPPER provides SSAW steel pipes with pipe diameter range from 20 inch to 100 inch, 406 mm to 2540 mm. Our SSAW steel pipes have different diameter with the same size of the steel strip, good performance to bear stress, accurate size, general diameter tolerance not more than 0.12%, deflection less than 1/2000, ellipticity less than 1%.
SSAW steel pipe complies with the following specifications:
Standard:
API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70.
ASTM A252 GR 1, GR 2, GR 3.
ASTM A53: GR A, GR B, GR C, GR D.
BS 4360: Grade 43, Grade 50.
EN: S275, S275JR, S355JRH, S355J2H.
API 5L PSL1, API 5L PSL2, Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70, ASTM A53, ASTM 139, ASTM A252 Grade 1, ASTM A252 Grade 2, ASTM A252 Grade 3, AN/NZS 1163, EN 10219-1, EN10217-1, EN 10208, BS 5950, ASTM A572 , JIS, IS.
Outer Diameters: 8.626-120 Inch, 219.1mm–3048mm or as requested.
Wall Thickness: 1/5-1 Inch, 0.197-1.181 Inch, 5.0mm-30mm or customized.
Length: Up to 70m.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's SSAW steel pipe and piping system needs.
As a professional SSAW steel pipe manufacturer in China, TOPPER provides SSAW steel pipes with pipe diameter range from 20 inch to 100 inch, 406 mm to 2540 mm. Our SSAW steel pipes have different diameter with the same size of the steel strip, good performance to bear stress, accurate size, general diameter tolerance not more than 0.12%, deflection less than 1/2000, ellipticity less than 1%.
SSAW steel pipe complies with the following specifications:
Standard:
API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70.
ASTM A252 GR 1, GR 2, GR 3.
ASTM A53: GR A, GR B, GR C, GR D.
BS 4360: Grade 43, Grade 50.
EN: S275, S275JR, S355JRH, S355J2H.
API 5L PSL1, API 5L PSL2, Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70, ASTM A53, ASTM 139, ASTM A252 Grade 1, ASTM A252 Grade 2, ASTM A252 Grade 3, AN/NZS 1163, EN 10219-1, EN10217-1, EN 10208, BS 5950, ASTM A572 , JIS, IS.
Outer Diameters: 8.626-120 Inch, 219.1mm–3048mm or as requested.
Wall Thickness: 1/5-1 Inch, 0.197-1.181 Inch, 5.0mm-30mm or customized.
Length: Up to 70m.
With the added support of industry specialized engineering teams to help design, build, and manage projects, Topper is able to facilitate the customer's SSAW steel pipe and piping system needs.
