ASTM A358 Class 1 TP316L Stainless Steel EFW Pipe For High Temperature Service

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Payment Terms	L/C,T/T
Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name	Stainless Steel Welded Pipe
Standard	ASTM A358/ ASME SA358
Material Grade	TP316L
OD	1/4" to 32" or custom
Thickness	SCH.5S- SCH.XXS
Length	Single Random, Double Random & Cut Length
Class	class 1, 2, 3, 4, 5
End	Plain End, Beveled End
Application	chemical processing, petrochemical, oil and gas, food processing,
High Light	ASTM A358 CL.1 TP316L Steel Welded Pipe, A358 EFW Pipe
Brand Name	YUHONG
Model Number	ASTM A358 Class 1 TP316L Stainless Steel Welded Pipe
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin	CHINA

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Product Specification


Payment Terms	L/C,T/T	Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name	Stainless Steel Welded Pipe	Standard	ASTM A358/ ASME SA358
Material Grade	TP316L	OD	1/4" to 32" or custom
Thickness	SCH.5S- SCH.XXS	Length	Single Random, Double Random & Cut Length
Class	class 1, 2, 3, 4, 5	End	Plain End, Beveled End
Application	chemical processing, petrochemical, oil and gas, food processing,	High Light	ASTM A358 CL.1 TP316L Steel Welded Pipe, A358 EFW Pipe
Brand Name	YUHONG	Model Number	ASTM A358 Class 1 TP316L Stainless Steel Welded Pipe
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008	Place of Origin	CHINA
High Light	Class 1 Stainless Steel EFW Pipe ，ASTM A358 Stainless Steel EFW Pipe ，TP316L Stainless Steel EFW Pipe

ASTM A312 CL.1 TP316L Stainless Steel Welded Pipe EFW Pipe

ASTM A358 is a standard specification for electric-fusion-welded austenitic stainless steel pipe intended for high-temperature service. ASTM A358 this specification covers five class: class 1, class 2, class 3, class 4, class 5. Each class intended for specific applications and conditions, particularly concerning temperature capabilities and welding methods. For example, class 1 refers specifically to the pipe made from austenitic stainless steel, such as TP316L, which has excellent corrosion resistance and is often used in challenging environments. And pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

Manufacturing Process

Material Preparation:
- Stainless steel is sourced and cut to the required dimensions.
Electric Fusion Welding (EFW):
- This process involves the use of electric current to create a weld joint between the pipe sections. The edges of the pipe are melted and fused together, providing a strong and durable seam.
Heat Treatment:
- Post-weld heat treatment is often performed to relieve residual stresses and improve corrosion resistance.
Testing:
- Non-Destructive Testing (NDT): Includes methods like radiographic testing (RT), ultrasonic testing (UT), and magnetic particle testing (MT) to ensure the integrity of the welds and material.
- Hydrostatic Testing: Usually performed to verify the pressure capabilities of the pipe, ensuring no leaks occur under specified pressure conditions.

ASTM A358 Stainless Steel Pipe chemical composition

Material	% Max ASTM A358 Chemical Composition
Material	C	Mn	P	S	Si	Cr	Ni	Mo	N B	Nb	Ti
A358 TP304	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0	…	…	…	…
A358 TP304L	0.035 D	2.00	0.045	0.030	1.00	18.0-20.0	8.0-13.0	…	…	…	…
A358 TP316	0.08	2.00	0.045	0.030	1.00	16.0-18.0	11.0-14.0	2.00-3.00	…	…	…
A358 TP316L	0.035	2.00	0.045	0.030	1.00	16.0-18.0	10.0-14.0	2.00-3.00	…	…	…
A358 TP316Ti	0.08	2.00	0.045	0.030	0.75	16.0-18.0	10.0-14.0	2.00-3.00	0.10	…	5x(C+N)-0.70

ASTM A358 Welded Pipe thickness tolerance

Specification	Allowable OD in mm			Allowable Wall Thickness Variation		Exact Length Tolerance in mm		Testing Requirement
Specification	Nominal Dia	Over	Under	% Over	%Under	Over	Under	Testing Requirement
ASTM-A312 Seemless & Welded pipe	3.175-38.1 incl	.4	.79	Minimum Wall 12.5% under nominal wall Specified		6.4 0	0	Tension Test
	38.1-1016 incl	.79	.79			6.4 0	0	Flattening Test
	101.6-203.2 imcl	1.59	.79			6.4 0	0	100% Hydrostatic Test
						(Normally Random Lengths ordered		Refer to ASTM A-530
ASTM A358 EFW/ Welded pipe	219.08-750mm or 0.01 inch	+0.5%		-0.3		6.0		Refer to ASTM A-530

Advantages

High Strength: EFW pipes have good mechanical strength, making them suitable for high-pressure applications.
Corrosion Resistance: TP316L provides excellent resistance to various aggressive environments, extending the lifespan of the piping system.
Cost-Effective: EFW pipes tend to have lower production costs compared to other welding techniques (like seamless fabrication), while still offering high performance.
Weldability: The alloy's properties make it easy to weld, which is beneficial for complex piping systems.

Applications

Chemical Processing: Used in the construction of transfer piping, vessels, and reactors due to its corrosion resistance.
Oil and Gas: Employed in pipelines and fittings, especially in offshore environments.
Pharmaceutical Industry: Used in processes requiring high cleanliness levels and resistance to corrosion.
Power Plants: Suitable for high-temperature applications in power generation.

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YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...

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