321 Stainless Steel Tube

1. Standard: ASTM A213 / ASME SA213、ASTM A269 / ASME SA269
2. Size: 1/2″NB – 30″NB IN
3. Wall Thickness: 0.3mm – 50 mm
4. OD: 5.0 mm OD – 300 mm OD

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Product Introduction

321 Stainless Steel Tube is a stainless steel pipe containing titanium as a stabilizing element, which has excellent resistance to intergranular corrosion when exposed to chromium carbide precipitation temperatures of 800 to 1500°F (427 to 816°C). ASME SA269 UNS S32100 tube is commonly used in applications requiring corrosion resistance, high strength, and high temperature resistance. Our suppliers can provide SS 321 welded or seamless pipes. We are an Alloy 321 Tubing supplier with 15+ export experience, contact us for more information and free quotes!

ASTM A213 TP321 Stainless Steel Tube Standard：

ASME SA213: Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASME SA269: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

ASTM A213 Gr 321 Stainless Steel Tube Specifications

Standard	ASTM A / ASME SA 312, 213, 269
Dimensions	ASTM, ASME and API
Type	Seamless, Welded, ERW, EFW, Fabricated, LSAW, Cold Drawn Welded
Size	1/2″NB TO 30″NB IN
Schedule	SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Thickness	0.3mm – 50 mm
Outside Diameter	5.0 mm OD to 300 mm OD
End	Plain End, Beveled End, Treaded
Length	Single Random, Double Random, Required Length & Cut Length

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Chemical Composition of Stainless Steel 321 Tubing

Grade	C	Mn	Si	P	S	Cr	Ni	Ti	N
321	0.08 max.	2.00 max.	0.75 max.	0.045 max.	0.03 max.	17.0 – 19.0	9.0-12.0	5 x (C+N) min.	0.1
								(0.70max.)

Stainless Steel 321 Tube Mechanical Properties

Grade	321
Density	7.92
Melting Range,℃	1398 – 1446
Elongation %	40
Tensile Strength (Mpa)	515
Yield Strength (Mpa)	205
Hardness (Brinell)	217

1.4541 AISI 321 Tube Applications

Aerospace Industry
Furnace Components, Heating Elements
Exhaust Pipes
Refinery Equipment
Oil and Gas Industry

ASTM A213 TP321 Tube Manufacturing Process

Heating: Heat the steel pipe billet to the appropriate temperature, usually 1100-1250°C
Cold drawing
Heat treatment
Surface treatment: Polishing, pickling, galvanizing, etc.