Carbon steel is an alloy with carbon and iron, with carbon content up to 2.1% by weight. The increase in the carbon percentage will raise steel’s hardness and strength, but it will be less ductile. Carbon steel has good properties in hardness and strength, and it is less expensive than other steels.
Seamless steel pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.
| Item | carbon steel pipe |
| Standard | ASTM A106,A53 ,API , ASTM A333 ASTM A192 ASTM A179 DIN1629,DIN2391,JIS3444-2006,JIS3454-2005,JIS3456 STPT |
| GB8163, GB8162 |
| Material | GB:20#,45#, Q345,12Cr2Mo,1Cr5Mo,15CrMo,12CrMo |
| DIN:ST37,ST37.4,ST52,ST52.4 |
| ASTM:A106B ,A53B .B |
| ASTM A335 P2,P12,P11,P22,P5,P9,A199 T11,A200 T5 |
| JIS:STK400,STK490,STK500,STPG370 |
| STPT38 STPT42 STPT49 |
| Description | Surface | paint,PE coated,galvanized |
| Length | 3m,5.8m,6m, 11.8m,12m, or as required |
| W.T. | 1.65-50mm |
| O.D. | 21.3-660mm |
| Trade terms | Payment term | T/T,L/C at sight,western union |
| Price term | FOB,CIF,CFR,CIP |
| Package | Standard export seaworthy package or as required. |
| Delivery time | 3~7 days for ready goods, 20~30 days for new order |
| Application | steel pipe applies to line pipe,petroleum,chemical industry,electric power,boiler,high temperature resistant,low temperature resistant, corrosion resistant seamless steel pipe used.Alloy steel pipe also can made according to the customer. |
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Product Specification and Size
Available Specification
| API SPEC 5L |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Line Pipes | API 5L | Ø60.3~273.1 x WT2.77~12.7 | A25, A, B, X42, X46, X52, X56, X60, X65, X70, X80 |
| ASTM / ASME |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Electric-Resistance-Welded Steel Pipes | ASTM A135 | Ø42.2~114.3 x WT2.11~2.63 | A |
| ERW and Hot-dip Galvanized Steel Pipes | ASTM A53 | Ø21.3~273 x WT2.11~12.7 | A, B |
| Pipes for Piling Usage | ASTM A252 | Ø219.1~508 x WT3.6~12.7 | Gr.2, Gr.3 |
| Tubes for General Structural Purpose | ASTM A500 | Ø21.3~273 x WT2.11~12.7 | Gr.2, Gr.3 |
| Square Pipes for General Structural Purpose | ASTM A500 | 25 x 25~160 x 160 x WT1.2~8.0 | Carbon Steel |
| DIN |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Threaded Steel Pipes | DIN 2440 | Ø21~164 x WT2.65~4.85 | Carbon Steel |
| BS |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Screwed and Socketed Steel Tubes | BS 1387 | Ø21.4~113.9 x WT2~3.6 | Carbon Steel |
| EN |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Scaffolding Pipes | EN 39 | Ø48.3 x WT3.2~4 | Carbon Steel |
| JIS |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Carbon Steel Tubes for General Structure Purpose | JIS G3444 | Ø21.7~216.3 x WT2.0~6.0 | Carbon Steel |
| Carbon Steel Tubes for Machine Structure Purpose | JIS G3445 | Ø15~76 x WT0.7~3.0 | STKM11A, STKM13A |
| Carbon Steel Pipes for Ordinary Piping | JIS G3452 | Ø21.9~216.3 x WT2.8~5.8 | Carbon Steel |
| Carbon Steel Pipes for Pressure Service | JIS G3454 | Ø21.7~216.3 x WT2.8~7.1 | Carbon Steel |
| Carbon Steel Rigid Steel Conduits | JIS G8305 | Ø21~113.4 x WT1.2~3.5 | G16~G104, C19~C75, E19~E75 |
| Carbon Steel Rectangular Pipes for General Structure | JIS G3466 | 16 x 16~150 x 150 x WT0.7~6 | Carbon Steel |
Carbon steel welded pipe and tube are used in high-pressure conditions. They are highly resistant to shock and vibration, making them ideal to transport fluids. Carbon steel pipes are widely used in a number of industries, such as transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing.
- Transporting water and sewage
- Oil and gas industries
- Boiler and condenser tubes
- High-pressure applications
- Chemical processing
