MSPiping Products

Steel Tubes

Seamless and welded steel tubes for heat exchangers, instrumentation and structural applications. BWG and SWG wall gauges available.

Seamless Tubes
Welded Tubes
Heat Exchanger Tubes
Instrumentation Tubes

Material & Grade Specifications

All items available to order. Contact us for non-standard sizes, special alloys, or mill test certificates. Grades listed per ASTM / ASME / API standards.

Carbon & LTCS High Yield Cr-Mo Alloy Austenitic SS Duplex / Super Duplex Nickel Alloy / Inconel Copper Nickel
Type Size Range Wall / Schedule Carbon & LTCS High Yield Cr-Mo Alloy Austenitic SS Duplex / Super Duplex Nickel Alloy / Inconel Copper Nickel
Seamless Tubes ⅛″ – 4″ OD BWG / SWG gauges
Standard · Heavy
ASTM A106 B/C API 5L Gr B ASTM A333 Gr 6 API 5L X52 – X65 ASTM A335 P11 ASTM A335 P22 ASTM A335 P5 ASTM A335 P9 ASTM A312 TP304/H/L ASTM A312 TP316/H/L ASTM A312 TP321/H ASTM A312 TP347/H ASTM A790 UNS S31803 ASTM A790 UNS S32750 ASTM B444 UNS N06625 ASTM B423 UNS N08825 ASTM B407 UNS N08800 EEMUA Publ. 234
Welded Tubes ⅛″ – 10″ OD BWG / SWG gauges ASTM A53 Gr A/B ASTM A135 Gr A/B API 5L X42 – X65 ASTM A691 ASTM A358 TP304/H/L ASTM A358 TP316/H/L ASTM A358 TP321/H ASTM A928 UNS S31803 ASTM A928 UNS S32750 ASTM B444 UNS N06625 ASTM B423 UNS N08825 EEMUA Publ. 234
Applicable Standards ASTM A106 · ASTM A312 · ASTM A790 · ASTM B444 · API 5L · EEMUA 234