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SMLS PIPE & TUBE

From perfect piping solutions that withstand extreme environments, we supply world-class seamless pipes for petrochemicals, power plants, and offshore structures.

"Seamless perfection, taking responsibility for your project's stability."
Seamless Pipe & Tube features no weld lines (seams), boasting overwhelming pressure resistance and corrosion resistance in harsh plant environments of high temperatures, high pressures, and cryogenic conditions. Through robust partnerships with world-class mills (manufacturers), RPS swiftly and accurately supplies SMLS piping materials across all specifications required by projects, ranging from general carbon steel to high-value special alloy steels (Duplex, Titanium).

Core Supply Categories

πŸ›’οΈ Oil & Gas / Line Pipe
  • API 5L: Seamless Line Pipe for Oil and Gas Transportation
    Grade: Gr.B, X42, X52, X60, X65, X70
πŸ”₯ High & Low Temperature Service
  • ASTM A106: Seamless Carbon Steel for High-Temperature Service
    Grade: A, B, C
  • ASTM A333: Seamless Carbon and Alloy Steel Pipe for Low-emperature Service (Grade: Gr 1, Gr 6)
  • ASTM A335: Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service (λ°œμ „μ†Œ 메인 μŠ€νŒ€μš©)
    Grade: P5, P9, P11, P22, P91
πŸ§ͺ Stainless & Duplex Steel
  • ASTM A312: Seamless Austenitic Stainless Steel Pipes
    Grade: TP304/304L, TP316/316L
  • ASTM A790: Seamless Ferritic/Austenitic Stainless Steel Pipe (ν•΄μ–‘ ν”ŒλžœνŠΈ 및 λ‹΄μˆ˜ν™” μ„€λΉ„μš©)
    Grade: UNS S31803, S32750
βš™οΈ Boiler & Heat Exchanger Tubes
  • ASTM A179 / A192 / A210: Carbon Steel Boiler &
    Heat Exchanger Tubes
  • ASTM A213: Ferritic and Austenitic Alloy Steel Boiler,
    Superheater, and Heat-Exchanger Tubes
    (Grade: T2, T5, T11, T22, T91, T92)
Product Name Executive Standard Specification (mm) Grade
Black and Hot - Dipped Zinc - Coated Steel Pipes, Welded and Seamless ASTM A53 Ο†10.3 ~ 609.6(24”) x 1.24 ~ 59.54 A, B
Seamless Carbon Steel for High Temperature Service ASTM A106 Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 A, B, C
Seamless Line Pipe for Oil and Gas Transportation API 5L Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 Gr.B, X42, X52, X60, X65, X70
Seamless Carbon and Alloy Steel Pipe for Low-Temperature Service ASTM A333 Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 Gr 1, Gr 6
Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service ASTM A335 Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 P5, P9, P11, P22, P91
Seamless Austenitic Stainless Steel Pipes ASTM A312 Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 TP304/304L, TP316/316L
Seamless Ferritic/Austenitic Stainless Steel Pipe ASTM A790 Ο†10.3 ~ 609.6 x 1.24 ~ 59.54 UNS S31803, S32750
Seamless Cold - Drawn Low - Carbon Steel Heat Exchanger and Condenser Tubes ASTM A179 Ο†10.3 ~ 114.3 x 1.2 ~ 12 Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressures ASTM A192 Ο†10.3 ~ 114.3 x 1.2 ~ 12 Low Carbon Steel
Seamless Medium - Carbon Steel Boiler and Superheater Tubes ASTM A210 Ο†10.3 ~ 114.3 x 1.2 ~ 12 A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat - Exchanger Tubes ASTM A213 Ο†10.3 ~ 73 x 1.2 ~ 12 T2, T5, T11, T22, T91, T92
Cold - Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes ASTM A500 Perimeter 35 ~ 230 x 0.8 ~ 6 A, B, C, D
Seamless carbon and alloy steel for mechanical tubing ASTM A519 Ο†8 ~ 114.3 x 0.8 ~ 12 Carbon Steel, Alloy Steel
Seamless Cold - Drawn Carbon Steel Feedwater Heater Tubes ASTM A556 Ο†10.3 ~ 114.3 x 1.2 ~ 12 A2, B2
Product Name Executive Standard Specification (mm) Grade
Alloy Steel Tubes for Machine Purpose JIS G 3441 Ο†10 ~ 76 x 0.8 ~ 8 Alloy Steel
Carbon Steel Tubes for General structural Purpose JIS G 3444 Ο† 8 ~ 114 x 0.8 ~ 12 Carbon Steel
Carbon Steel Tubes for Mechanical Structural Purpose JIS G 3445 Ο†10 ~ 76 x 0.8 ~ 8 Carbon Steel
Carbon Steel Pipes for Pressure Service JIS G 3454 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 STPG 370, STPG 410
Carbon Steel Pipes for High Pressure Service JIS G 3455 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 STS 370, STS 410, STS 480
Carbon Steel Pipes for High Temperature Service JIS G 3456 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 STPT 370, STPT 410, STPT 480
Alloy Steel Pipes for High Temperature JIS G 3458 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 STPA 12, STPA 22, STPA 23, STPA 24
Stainless Steel Pipes JIS G 3459 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 SUS304TP, SUS304LTP, SUS316TP, SUS316LTP
Steel Pipes for Low Temperature Service JIS G 3460 Ο†10.5 ~ 609.6 x 1.24 ~ 59.54 STPL 380, STPL 450, STPL 690
Carbon Steel Boiler and Heat Exchanger Tubes JIS G 3461 Ο†10.5 ~ 114.3 x 1.2 ~ 12.0 STB 340, STB 410, STB 510
Alloy Steel Boiler and Heat Exchanger Tubes JIS G 3462 Ο†10.5 ~ 114.3 x 1.2 ~ 12.0 STBA 12, STBA 20, STBA 22, STBA 24
Stainless Steel Boiler and Heat Exchanger Tubes JIS G 3463 Ο†10.5 ~ 114.3 x 1.2 ~ 12.0 SUS304TB, SUS304LTB, SUS316TB, SUS316LTB
Steel Heat Exchanger Tubes for Low Temperature Service JIS G 3464 Ο†10.5 ~ 114.3 x 1.2 ~ 12.0 STBL 380, STBL 450, STBL 690
Seamless Steel Tubes for Drilling JIS G 3465 Ο†8 ~ 114.3 x 0.8 ~ 12 Carbon Steel, Alloy Steel
Steel Tubes for Fired Heater JIS G 3467 Ο†10.3 ~ 114.3 x 1.2 ~ 12 STF 410, STFA 12, STFA 22
Carbon Steel Tubes for Cylinder Barrel JIS G 3473 Ο†10.3 ~ 114.3 x 1.2 ~ 12 STC 370, STC 440, STC 515
Product Name Executive Standard Specification (mm) Grade
Seamless Non-Alloy Steel Tubes for Pressure Purposes (ASTM A53 / A106) EN 10216-1 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 P195TR1, P235TR1, P265TR1
Seamless Non-Alloy and Alloy Steel Tubes for Elevated Temperature (A106 / A335) EN 10216-2 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 P235GH, P265GH, 16Mo3, 10CrMo9-10
Steel Pipe for Pipeline Transportation Systems API 5L EN ISO 3183 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 L245, L290, L360, L415, L485
Seamless Non-Alloy and Alloy Steel Tubes for Low Temperature (ASTM A312) EN 10216-5 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 1.4301, 1.4306, 1.4401, 1.4404
Seamless Duplex & Super Duplex Stainless Steel Tubes (ASTM A790) EN 10216-5 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 1.4462, 1.4410
Seamless Steel Tubes for Mechanical and General Engineering (ASTM A519) EN 10297-1 Ο†10.2 ~ 114.3 x 1.2 ~ 12.0 E235, E275, E355, 42CrMo4
Hot Finished Structural Hollow Sections ASTM A500 EN 10210-1 Perimeter 35 ~ 230 x 0.8 ~ 6 235JRH, S275J0H, S355J2H
Product Name Executive Standard Specification (mm) Grade
Screwed and Socketed Steel Tubes and Tubulars BS 1387 Ο†10.2 ~ 165.1 x 1.8 ~ 5.4 Light, Medium, Heavy (Class A, B, C)
Carbon Steel Pipes and Tubes for Pressure Purposes BS 3601 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 320, 360, 430
Carbon Steel Pipes for High Temperature BS 3602-1 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 360, 410, 460
Carbon and Alloy Steel Pipes for Low Temperature BS 3603 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 410NL, 505NL
Ferritic Alloy Steel Pipes for High Temperature BS 3604 Ο†10.2 ~ 610.0 x 1.24 ~ 59.54 620, 621, 622
Austenitic Stainless Steel Pipes for Pressure Purposes BS 3605 Ο†10.2 ~ 114.3 x 1.2 ~ 12.0 304S11, 316S11
Steel Boiler and Superheater Tubes (Low Tensile) BS 3059-1 Ο†10.2 ~ 114.3 x 1.2 ~ 12.0 320
Steel Boiler and Superheater Tubes (High Temp) BS 3059-2 Ο†10.2 ~ 114.3 x 1.2 ~ 12.0 360, 440, 620, 622

🌍 Global Piping Standards Cross-Reference Table

Application ASTM / API EN/DN JIS BS
Carbon Steel Pipe for General Pressure Service A53 Gr.B EN 10216-1 P265TR1 (DIN 1629 St 44.0) JIS G 3454 STPG 370 BS 1387 / BS 3601 Gr. 430
Carbon Steel Pipe for High-Temperature Service A106 Gr.B EN 10216-2 P235GH (DIN 17175 St 35.8) JIS G 3456 STPT 370 BS 3602-1 Gr. 360
Line Pipe for Oil & Gas Transportation API 5L Gr.B EN 10216-2 P235GH (DIN 17175 St 35.8) (API 5L applied globally) (API 5L applied globally)
Alloy Steel Pipe for High-Temperature Service A335 P11 / P22 EN 10216-2 13CrMo4-5 (DIN 17175 13CrMo44) JIS G 3458 STPA 23 / 24 BS 3604 Gr. 620 / 622
Austenitic Stainless Steel Pipe for Corrosive Service A312 TP316L EN 10216-5 1.4404 (DIN 17458) JIS G 3459 SUS316LTP BS 3605 316S11
Carbon Steel Boiler and Heat Exchanger Tubes A179 / A192 EN 10216-2 P235GH (DIN 17175 St 35.8) JIS G 3461 STB 340 BS 3059-1 Gr. 320
Carbon / Alloy Steel Mechanical Tubing A519 1020 / 1026 EN 10297-1 E235 / E355 (DIN 1629 St 37.0) JIS G 3445 STKM 11A / 13A BS 6323-4

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