Seamless steel pipe manufacturing process
Main Products——Stainless Steel Pipe
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Goods
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Standard size
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Stainless steel seamless tube & pipe
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OD: φ6-φ813mm, WT: 0.5-40mm
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U-Tube
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OD: φ12-φ38mm, WT: 0.5-4mm
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Welded tube & pipe
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OD: φ17.15-φ1828mm, WT: 0.5-45mm
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Pipe Fitting
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OD: 1/4”~48”, WT: 5S-40S
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Main types and materials
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Item No.
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Steel types
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Typical steel grade
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1
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Austenitic
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TP304, TP304L, TP304H, TP316, TP316H, TP316Ti, TP316L, TP321, TP321H, TP347H, TP347HFG, 904L, TP310H, TP310S, TP317, TP317L, TP316LMo≥2.5; etc.
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2
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Super Austenite
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N08904;N08367;S31254
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3
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Duplex/Super duplex
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S31803; S32205; S31500; S32750；LC65-2506;LC80-2507
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4
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Ni-Alloy
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UNS NO2200;NO2201;NO4400;N06600;N06601;NO6690;NO6045; N06625; NO6603;N008800;N08810;N08811;N08020;N08825;N08828;
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5
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API Corrosion Resistant Alloy
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LC30-1812; LC65-2205; LC65-2506; LC80-2507; LC30-2242
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Stainless steel pipe application
Heat Exchanger
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Main grade
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Standard
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Specification
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TP304,TP304H,TP316, TP316, TP316L,TP321
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ASTM A213,ASME SA213, GB13296, JIS3463, DIN17458, EN10216-5
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OD: 12.7-159mm WT: 0.5-8mm
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Boiler Tube
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Main grade
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Standard
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Specification
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TP304H,TP310H, TP316H,TP321H, TP347H,TP347HFG
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GB5310,GB13296, ASTM A213, ASME SA213,EN10216-5,
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OD: 33-273mm WT: 2-20mm
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Marine Tube/Pipe
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Main grade
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Standard
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Specification
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Classification society certification
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TP304H,TP304L, TP347H, TP321, TP321H, TP316LMo≥2.5
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GB14976, ASTM A312, A269, JIS G3459,
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OD: 6-273mm WT: 0.5-16mm
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ABS,BV,CCS, DNV,GL,LR and RINA,etc.
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Instrumentation Tube
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Main grade
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Standard
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Specification
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TP304,TP304L,TP316, TP316L,TP317L,TP321,
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GB/T14976,EN10216-5,DIN17456,DIN17458,ASTMA269,JISG3459
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OD: 6-76mmWT: 0.5-6mm
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General Tubes & Pipes
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Main grade
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Standard
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Specification
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TP304,TP304L, TP304H, TP316, TP316H,TP316Ti, TP316L,TP321, TP316Mo≥2.5
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GB/T14976,EN10216-5, DIN17456,DIN17458, ASTM A312,JISG3459
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OD: 10.0-830mm WT: 1.65-45mm
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Duplex Tubes/Pipes
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Main grade
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Standard
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Specification
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S31803; S32205,
S31500; S32750
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ASTM A789
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OD: 12.0-219mm，WT: 0.5-14mm
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ASTM A790
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OD: 10.0-273mm，WT: 0.5-20mm
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Ni-Alloy
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Main grade
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Standard
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Specification
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N08825,N08904, N08028,N08800
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ASME SB163, ASTM B163, ASME SB423, ASTM B423, ASME SB407, ASTM B407, ASME SB668, ASTM B668
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OD: 16-273mm WT: 1.65-20mm
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