Premium Carbon & Alloy Steel Seamless Tubes
Type: Seamless Carbon Steel Tube, Seamless Alloy Steel Tube, Precision Steel Tube.
Size range: OD: 10-130 mm, WT: 1-25 mm.
Standard: ASTM, ASME, EN, DIN, BS, JIS, GB.
Grade: 20#, 45#, Q345(D/E), 42CrMo, 15CrMo, SA106B, E355, St52, 20CrMnTi, 4130, 4140, etc.
Delivery Condition: Hot Rolled, Cold Drawn, +A (Annealed), +N (Normalized)Surface: Bare, Anti-rust Oil, Black Painting, Varnish
01 | Seamless Tubes for Boilers & Heat Exchangers
Standard & Steel Grades:
ASTM/ASME: SA106B/C, SA179, SA192, SA210 A-1/C, Alloy T/P1, T/P2, T/P11, T/P22, T/P5
EN Standard: P235, P265, 13CrMo44, 10CrMo910, WB36
JIS Standard: STB340, STB410, STBA12/22/24/25/26
GB Standard: 20G, 25MnG, 15CrMo, 12Cr1MoV, 1Cr5Mo
02 | Precision Automotive Alloy Steel Tubes
Main Steel Grades:
SAE/AISI: SAE1527, SAE4130, SAE4140, SAE8617H
JIS: SCM415H, SCM420H, SCM430
EN/GB: 16MnCrS5, 20MnCr5, 20Cr, 35#, 45#, 30CrMo
03 | Low-Temperature Service Steel Pipes
Grades & Operating Temperatures:
ASTM A333 / A334: Grade 1, Grade 6 (Operating down to -45°C)
GB Q345 / Q390 / Q420: Series D (-20°C) and Series E (-40°C)
Ultra-Low Temp Grades: 16MnDG, 09DG (-45°C) / 09Mn2VDG (-70°C)
04 | High-Hardenability Gear Steel Tubes
Main Steel Grades:
20CrMnTi, 42CrMo, 20CrMnMo, 20Cr, 40Cr, 15CrMn, 26MnB5, 34MnB5.
05 | Cold-Drawn Precision Tubes for Hydraulic Systems
Standards & Grades:
EN 10305-1 / EN 10305-4: E215, E235, E355
DIN 2391: St35, St44, St52
GB/T 3639 & GB/T 8713: 10#, 20#, 35#, 45#, Q345B
06 | Custom Special Alloy Steel Pipes
Main Steel Grades:
4150H, 65Mn, 9HS74, 5HS64, 35CrNi3MoVA, 16MnVrS5.
