Stainless Steel Pipe Supplier— ASTM A312 and ASTM A213

YES Stainless International is a stainless steel pipe manufacturer for pressure and general service. Choose ASTM A312 welded, ASTM A312 seamless, or ASTM A213 seamless for clean IDs, consistent dimensions, and dependable delivery.

Overview

YES Stainless International is a stainless steel pipe manufacturer supplying ASTM A312 welded pipe, ASTM A312 seamless pipe, and ASTM A213 seamless pipe for industrial pressure and general service. We provide ASME B36.19M sizes in schedules 5S, 10S, 40S, and 80S in grades 304, 304L, 316, and 316L. Pipes are furnished in the annealed condition with AP or BA surfaces, clean plain or beveled ends, and controlled straightness and ovality for fast fit up. Explore the product pages to confirm dimensions, tolerances, and recommended applications, or contact our team for technical support.

Products

Key Features

Dimensional consistency: ASTM A312 Pipe sizes follow ASME B36.19M, with controlled OD, wall, ovality, and straightness.
Material reliability: Grades 304/304L, 316/316L, 321, 347, and 310/310S provide proven corrosion resistance across a wide range of media.
Finish options: AP and BA finishes are available, with clean, weld-ready ends prepared to your order.
Traceable paperwork: Every shipment can include EN 10204 3.1 MTC, dimensional records, and agreed inspection reports.
Export protection: End caps, film wrap, and moisture control help preserve surface condition in transit.

product comparasion

Item	A312 Welded Pipe	A312 Seamless Pipe	A213 Seamless
Form	Welded	Seamless	Seamless
Typical use	General process and utility lines	Higher pressure and clean ID needs	Boilers, superheaters, heat exchangers
Sizing	ASME B36.19M schedules 5S, 10S, 40S, 80S	ASME B36.19M schedules 5S, 10S, 40S, 80S	OD × wall × length, minimum or nominal wall
Common grades	304, 304L, 316, 316L	304, 304L, 316, 316L	TP304, TP304L, TP316, TP316L
Surfaces	AP or BA	AP or BA	AP or BA
End prep	Plain	Plain or beveled	Plain ends, bevel on request
Typical tests	Dimensional, visual, hardness, flattening, reverse flattening for welded, Hydro, or ECT	Dimensional, visual, hardness, flattening, flaring, as applicable, Hydro or ECT	Dimensional, visual, hardness, flattening, flaring, Hydro or ECT

Quality & Documents

Traceability: We provide EN 10204 3.1 MTC with heat/lot numbers and clear bundle tags.
Inspection: Visual inspection is standard; hydrostatic, eddy current, and other NDT can be requested by the PO.
Process control: Internal SOPs and ITPs align with applicable ASTM/ASME requirements in your specification.

As a stainless steel pipe manufacturer operating under ISO 9001, YES Stainless International controls materials, processes, and inspections from intake to release. Each shipment can include MTC 3.1, dimensional reports, and integrity test certificates. If you appoint a third party such as SGS, TÜV, BV, or Intertek, we coordinate onsite once your booking is confirmed, and the agency issues the final report directly to you.

FAQs

1. How should I choose between welded and seamless?

Welded pipe offers strong value and stable lead times for most process and utility lines, while seamless pipe is often selected for higher pressure or cleanliness requirements.

2. What sizes and schedules are available for ASTM A312 stainless steel pipe?

ASTM A312 follows ASME B36.19M with schedules 5S, 10S, 40S, and 80S. Other schedules are available on request.

3. Can you provide testing and inspection documents?

Yes. We can include MTC 3.1, dimensional records, and agreed inspection reports. Hydrostatic and eddy current testing are available per purchase order.

4. Can you supply passivation and polishing?

Yes. We can provide pickling and passivation, and we can polish surfaces when your specification requires it.