Name: ASTM A312 TP321 / UNS S32100 Stainless Steel Seamless Pipe Industrial Pipe
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A213 TP304/304L/304H , TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L , 2205, 2507, S31803, S32750, S32760
Price: 150000.00 USD
Availability: InStock

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

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM A213 TP304/304L/304H , TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L , 2205, 2507, S31803, S32750, S32760

Payment & Shipping Terms:

Minimum Order Quantity:	100KGS
Packaging Details:	Plywood case,Bundle
Delivery Time:	7 DAYS
Payment Terms:	L/C,T/T

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Detailed Product Description

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
Pipe End:	Plain End, Beveled End
Highlight:	ASTM A312 TP321 stainless steel pipe , UNS S32100 seamless industrial pipe , stainless steel seamless pipe with warranty

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
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS
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

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N	Other
321	min. max	- 0.08	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 12.0	0.10	Ti=5(C+N) 0.70
321H	min. max	0.04 0.10	2.00	0.75	0.045	0.030	17.0 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) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
321	515	205	40	95	217
321H	515	205	40	95	217
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

Grade	Density (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°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

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 0