HQS / MATERIAL
ASTM A106 Grade B Seamless Steel Pipe
Source ASTM A106 Grade B seamless steel pipe for your piping order. Send diameter, wall, length, pipe-end and inspection requirements, plus quantity and destination port for pricing.
PIPE PROCUREMENT / ASTM
Seamless Carbon & Alloy Steel Pipe
Compare ASTM A106 Gr.B carbon and A335 alloy seamless steel pipe. Review grade, OD, wall or schedule, length and EN 10204 3.1 MTC requirements for export.
Choose by specification and service conditions—not by the word “seamless” alone. The listed A106 Gr.B and A335 products represent different steel grades and service requirements.
Seamless pipe products in our catalog
HQS / MATERIAL
ASTM A335 Seamless Alloy Steel Pipe
Request ASTM A335 seamless alloy steel pipe by grade and heat-treatment condition. Send pipe sizes, inspection needs, quantity and destination port for your piping project quote.
Technical RFQ checklist
To compare supply options, send the drawing or standard, outside diameter, wall thickness or Schedule, length, grade, quantity, inspection requirements and destination port.
| Standard / grade | Manufacturing method | Dimensions to specify |
|---|---|---|
| ASTM A106 Grade B · carbon steel pipe | Seamless | Outside diameter · wall / Schedule · length |
| ASTM A335 · alloy steel pipe | Seamless | Outside diameter · wall / Schedule · length |
Inspection documents: Request MTC EN 10204 3.1 and any third-party inspection in the RFQ
Do not confuse seamless and welded grades
ASTM A53 includes both seamless and welded pipe types. API 5L may also specify different manufacturing processes; listing a standard does not establish that a pipe is seamless. Confirm the actual product standard and manufacturing method before ordering.
ASTM A53 · Seamless / weldedSeamless pipe buying questions
Does ASTM A106 cover welded pipe?
No. ASTM A106 is a seamless carbon steel pipe specification, commonly used for high-temperature service.
Is ASTM A335 the same material as A106?
No. A335 covers seamless ferritic alloy-steel pipe for high-temperature service. Compare the grade, heat treatment and application rather than treating it as a direct A106 substitute.
What should I include in a seamless pipe RFQ?
Specify the relevant standard, grade, outside diameter, wall or Schedule, length, quantity, testing or MTC requirements and destination port.