20# Carbon Steel Tube/Pipe
20# Carbon Steel Tube/Pipe is a tubular product made from low-carbon steel with a nominal carbon content of around 0.20%. This low carbon content ensures excellent weldability, high ductility, and good cold formability. While it offers lower overall strength than medium-carbon steels, it maintains good toughness and is typically used in the as-rolled or normalized condition. 20# pipe is one of the most common grades used for general structural applications, non-critical pressure piping, fluid transmission (e.g., water, gas), and mechanical components that require subsequent heat treatments like carburizing to achieve a hardened surface.
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- Commodity name: 20# Carbon Steel Tube/Pipe
20# Carbon Steel Tube/Pipe is a tubular product made from low-carbon steel with a nominal carbon content of around 0.20%. This low carbon content ensures excellent weldability, high ductility, and good cold formability. While it offers lower overall strength than medium-carbon steels, it maintains good toughness and is typically used in the as-rolled or normalized condition. 20# pipe is one of the most common grades used for general structural applications, non-critical pressure piping, fluid transmission (e.g., water, gas), and mechanical components that require subsequent heat treatments like carburizing to achieve a hardened surface.
20# Carbon Steel Tube/Pipe Description
Applications
Boilers & Heat Exchangers Pressure Piping Structural Tubing General Engineering Automotive Tubing Machinery Manufacturing Water & Sewage Construction (Scaffolding) Material Handling Hydraulic Systems Product Parameters
Product Name 20# Carbon Steel Tube / Pipe Type Seamless Tube/Pipe, Welded Tube/Pipe Outer Diameter (OD) 6mm - 1200mm (Seamless); 10mm - 2500mm (Welded) Wall Thickness (WT) 1mm - 150mm (Customizable) Length 5.8m, 6m, 11.8m, 12m, or Random Length Standard GB/T 8162 (Structural), GB/T 8163 (Fluid), ASTM A106 Grade A (Similar), ASTM A519 Surface Black Painted, Varnished, Oiled, Cold Drawn Bright Finish Scope of Application General structural parts, low and medium-pressure pipelines, mechanical components (e.g., shafts, cylinders), automotive parts, and components intended for case hardening (carburizing). Certificate ISO, SGS, BV, LR, DNV, TUV, etc. Production Technology Hot Rolled/Cold Drawn (Seamless); ERW/LSAW/SSAW (Welded) End Finish Plain End, Beveled End Approximate grade comparison table
Standard System UNS GB/T (China) EN (Approx.) SAE/AISI JIS (Approx.) W. Nr. (German) Grade (Approx.) G10200 20 (High Quality Carbon Steel) C22 (1.0402) 1020 S20C 1.0402 Chemical Composition
Element C (Carbon) Mn (Manganese) Si (Silicon) P (Phosphorus) S (Sulfur) Cr (Chromium) Ni (Nickel) Cu (Copper) Composition (wt%) 0.17 - 0.24 0.35 - 0.65 0.17 - 0.37 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25 Mechanical Properties
Tensile Strength (Rm) (MPa) Yield Strength (ReH) (MPa) Elongation A5 (%) Hardness (HB) ~400 - 520 ~205 - 295 ≥25 ~120 - 150 Physical Performance
Property Density (g/cm3) Modulus of Elasticity (GPa) Mean Coeff. of Thermal Expansion (10−6/deg C) (20-100 deg C) Thermal Conductivity (W/m.K) (20 deg C) Value (Approx.) ~7.85 ~200 ~11.5 ~50 -
20# Carbon Steel Tube/Pipe - Stock Warehouse
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20# Carbon Steel Tube/Pipe - Product Inspection
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20# Carbon Steel Tube/Pipe - Product Measurement
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20# Carbon Steel Tube/Pipe- Product Packaging
Taigang Yilian
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Taigang Yilian has 10+ warehouses with ready stock. The annual supply capacity is approximately 10 million tons. It has 10 years of experience in large-scale project supply. The customer reorder rate reaches 86%. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase.
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