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ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe

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ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe

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Brand Name : YUHONG

Model Number : ASTM A213 TP304/304L/304H , TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L , 2205, 2507, S31803, S32750, S32760

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : CHINA

MOQ : 100KGS

Payment Terms : L/C,T/T

Delivery Time : 7 DAYS

Packaging Details : Plywood case,Bundle

Product Name : Stainless Steel Seamless Pipe

Standard : ASTM A312/ ASME SA312

Material : TP304 TP304L TP316L TP316Ti TP321 TP347H

Wall Thickness : Schedule 5S to Schedule XXS.

Length : Single Random, Double Random & Cut Length.

Type : Seamless , Welded

High Light : ASTM A312 TP321 Stainless Steel Seamless Pipe, UNS S32100 Pickled and Annealed Pipe

Pipe End : Plain End, Beveled End

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ASTM A312 / ASME SA312 TP321 / UNS S32100 Stainless Steel Seamless Pipe


TP321 / UNS S32100 is a robust choice for applications demanding thermal stability and corrosion resistance, especially where welding is involved. Always confirm project-specific requirements with engineering standards. Composition: Chromium (17–19%), Nickel (9–12%), Titanium (≥5xC% min, typically 0.4–0.7%). Titanium Stabilization: Added to prevent sensitization (chromium carbide precipitation at grain boundaries) during welding or exposure to 425–815°C (800–1500°F). This enhances corrosion resistance post-welding.

Equivalent Material of TP321, TP321H Stainless Steel seamless Pipe

Grade

UNS No

Old British

Euronorm

Swedish SS

Japanese JIS

BS

En

No

Name

321

S32100

321S31

58B, 58C

1.4541

X6CrNiTi18-10

2337

SUS 321

321H

S32109

321S51

-

1.4878

X10CrNiTi18-10

-

SUS 321H

These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Chemical Composition of ASTM A312 TP321 Stainless Steel Seamless Pipes

GradeCMnSiPSCrMoNiNOther
321min.
max		-
0.08		2.000.750.0450.03017.0
19.0		-9.0
12.0		0.10Ti=5(C+N)
0.70
321Hmin.
max		0.04
0.10		2.000.750.0450.03017.0
19.0		-9.0
12.0		-Ti=4(C+N)
0.70

Mechanical Properties of ASTM A312 TP321 Stainless Steel Seamless Pipes

Grade

Tensile Strength
(MPa) min

Yield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
3215152054095217
321H5152054095217
321H also has a requirement for a grain size of ASTM No 7 or coarser.

Physical Properties of ASTM A312 TP321 Stainless Steel Seamless Pipes

GradeDensity (kg/m3)Elastic Modulus (GPa)Mean Coefficient of Thermal Expansion (μm/m/°C)Thermal Conductivity (W/m.K)Specific Heat 0-100°C (J/kg.K)Electrical Resistivity (nΩ.m)
0-100°C0-315°C0-538°Cat 100°Cat 500°C
321802719316.617.218.616.122.2500720



Applications
Heat exchangers, boilers, superheaters
Petrochemical/oil & gas refining
Aircraft exhaust systems
Food processing equipment
Pharmaceutical and chemical plants
High-temperature piping in power plants

ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe


Product Tags:

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ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe Manufactures

ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe Images

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