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Carbon Steel Tube ASTM A178 Tubing ERW Tube For Boiler And Superheater
Standard executived: ASTM A178 A178M, ASTM DIN JIS or GB standard.
Grade: Grade A, Grade C, Grade D.
Outside diameter:12.7mm~127mm
Wall Thickness:0.9mm~1.1mm
Length: 6m-28m,also can be manufactured according to customers' requirements
Type: Electric-Resistance-Welded Carbon Steel (ERW)
Ends:Plain ends or bevel ends
Chemical Requirements:
| Composition,% | |||
| Element
| Grade A, Low-Carbon Steel | Grade C, Medium-Carbon Steel | Grade D Carbon-Manganese Steel |
| Carbon Managanese Phosphorus,max Sulfur,max Silicon | 0.06-0.18 0.27-0.63 0.035 0.035 … | 0.35max 0.08max 0.035 0.035 … | 0.27max 1.00-1.50 0.030 0.015 0.01 min |
Mechanical Property:
Grade C & Grade D tubes shall conform to the requirements -tensile properties prescribed below:
| TensileRequirements | ||
| GradeC | GradeD | |
| Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,% For longitudinal strip tests a deduction for Each1⁄32-in[0.8mm]decreaseinwallthicknessbelow5⁄16in.[8mm] From the basic minimum elongation of the following percentage points shall be made | 60[415] 37[255] 30 1.50A | 70[485] 40[275] 30 1.50A |
| Grade A | |
| Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,% | 47[325] 26[180] 35 |
Delivery Conditions: BK,BKS,BKW,NBK,GBK( As drawn, quenched and tempered, normalized, annealed, stress-relieved)As different requirements,It including pickling,etc. As per Standard.
Coating for protection:black painting,anti-rust oiled or varnish,also can be required according to customers' requirements
Applications: ASTM A178 tubes are a kind of frequently-used tubes in our life,they are mainly used in manufacturing heating pipelines,containers,coal-saving devices,superheaters,arch tube,reheater tube,airway tube etc.
