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A358 TP321 CLASS 1 EFW STAINLESS STEEL ELECTRIC FUSION WELDED PIPE

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A358 TP321 CLASS 1 EFW STAINLESS STEEL ELECTRIC FUSION WELDED PIPE

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Brand Name :	YUHONG STEEL
Model Number :	A358 TP321 CLASS 1
Certification :	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Price :	NEGOTIABLE
Payment Terms :	T/T, L/C AT SIGHT
Supply Ability :	2000 tons per month
Delivery Time :	Depends on actual quantity

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A358 TP321 CLASS 1 EFW STAINLESS STEEL ELECTRIC FUSION WELDED PIPE

ASTM A358 TP321 CLASS 1 EFW STAINLESS STEEL ELECTRIC FUSION WELDED PIPE

YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.

YUHONG SPECIAL STEEL deal with stainless steel welded pipe and tube already more than 10 years, every year sell more than 5000 tons of stainless steel pipe and tube. Our client already cover more than 45 countries. Our stainless steel seamless pipe and tube was width used in Mining, Energy, Petrochemical, Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry etc.

ASTM A358 TP321 Stainless Steel EFW / Electric Fusion Welded Pipe:
ASTM A358 TP321 Stainless Steel EFW Pipes is available available in sizes from 1/8” through to 64” Nominal Bore.

Chemical Composition of SS321/321H/347

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
347	min. max	0.08	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 13.0	-	Nb=10(C+N) 1.0

Mechanical properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
321	515	205	40	95	217
321H	515	205	40	95	217
347	515	205	40	92	201
321H also has a requirement for a grain size of ASTM No 7 or coarser.

Physical properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
			0-1000C	0-3150C	0-5380C	at 1000C	at 5000C
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

Grade specifications for SS321/321H/347

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
347	S34700	347S31	58G	1.4550	X6CrNiNb18-10	2338	SUS 347
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.

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