321 Stainless Steel Pipe

1. Standard: ASTM A312 / ASME SA312、ASTM A213/ASME SA213、ASTM A269/ASME SA269
2. Size: 6mm-830mm
3. Thickness: 0.5mm-30mm
4. Equivalent：UNS S32100, WNR.1.4541, AISI 321

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Product Introduction

ASTM A312 TP 321 Stainless Steel Pipe is a low carbon chromium-nickel alloy with titanium added as a stabilizer, which has excellent resistance to high temperature intergranular corrosion. AISI 321 SS pipe shows excellent corrosion resistance at high temperatures and can withstand temperatures of at least 800°C. In addition, it also has stress rupture resistance, high thermal strength and tensile strength. We are a 1.4541 material supplier with 15+ export experience, contact us for more information and free quotes!

ASTM A312 UNS S32100 Stainless Steel Pipe Standard:

ASTM A269: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

ASTM A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASTM A312: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

ASTM A312 TP321 Stainless Steel Pipe Specifications

Pipe Specifications	ASTM A312 / ASME SA 312 ASTM A213 / ASME SA 213 ASTM A269 / ASME SA 269
Pipe Standard	DIN, JIS, ASTM, EN, GB, AISI, ASME
Pipe Thickness	0.3mm - 50 mm
Welded Pipe size	5.0 mm - 1219.2 mm
Seamless Pipe Outer Diameter	6.00 mm OD up to 250 mm OD, Sizes up to 12" NB
Pipe Schedule	SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Length	6m, 12m, Cut Length
Form	Round Pipes, Square Pipes, Rectangular Pipe, Hydraulic Pipes, Custom Pipes,
Pipe & Tube Type	Seamless / ERW / EFW / Welded / Fabricated Pipe
Pipe & Tube End	Plain End, Beveled End, Treaded Pipe

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ASTM A312 TP321 Seamless Pipe Chemical Composition

Carbon (C): ≤0.08
Silicon (Si): ≤1.00
Manganese (Mn): ≤2.00
Phosphorus (P): ≤0.045
Sulfur (S): ≤0.030
Vanadium (V): 5C~0.70
Titanium (Ti): 5C~0.70
Nickel (Ni): 9.00~13.00
Chromium (Cr): 17.00~20.00

DIN 1.4541 Stainless Steel Pipes Mechanical Properties

Melting Point	1454 °C (2650 °F)
Tensile Strength	Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset)	Psi – 30000 , MPa – 205
Elongation	35%
Hardness, Brinell (HB) max	217
Hardness, Rockwell B (HR B) max	95

Stainless Steel 321 Pipe Physical Properties

Grade	Density (kg/m)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (n.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

321 Stainless Steel VS 304 Stainless Steel

304 Stainless Steel has good corrosion resistance at temperatures up to 1562°F (850°C).
Stainless Steel SUS 321 Pipe allows higher temperature limits, including long-term exposure to high temperatures up to 1652°F (900°C).