Name: ASTM A358 TP304H / 1.4948 Stainless Steel Welded Pipe EFW Pipe for Corrosive Environment
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A358 TP304H Stainless Steel Welded Pipe
Price: 500,000.00 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

English

Home

Products

About Us

Factory Tour

Quality Control

Company News

Home Products Stainless Steel Welded Pipe

ASTM A358 TP304H / 1.4948 Stainless Steel Welded Pipe EFW Pipe for Corrosive Environment

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 A358 TP304H Stainless Steel Welded Pipe

Payment & Shipping Terms:

Minimum Order Quantity:	1000kgs
Packaging Details:	Ply-wooden Case / Bundle with plastic Cap
Payment Terms:	L/C,T/T

Contact Now

All Products

Stainless Steel Seamless Pipe (345)

Stainless Steel Seamless Tube (341)

Duplex Stainless Steel Pipe (137)

Duplex Stainless Steel Tube (39)

Needle Tube (171)

Fin Tube (744)

Heat Exchanger (35)

Heat Exchanger Tube (475)

Heat Exchanger Tube Bundle (54)

Heat Exchanger Tubesheet (129)

Heat Exchanger Baffle (39)

Air Cooler (14)

Pressure Vessel (4)

Stainless Steel Welded Pipe (62)

Stainless Steel Welded Tube (134)

Nickel Alloy Pipe (276)

Nickel Alloy Tube (108)

Copper Alloy Tube (258)

Alloy Steel Tube (219)

Titanium Tube (21)

Bright Annealed Tube (166)

Boiler Tube (157)

Steel Fitting (876)

Steel Flange (674)

Others (411)

Cladding Parts (9)

Detailed Product Description

Product Name:	Stainless Steel Welded Pipe	Standard:	ASTM A358/ ASME SA358
Material Grade:	TP304H	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 TP304H Stainless Steel EFW Pipe, ASTM A358 Stainless Steel Welded Pipe

ASTM A358 TP304H / 1.4948 Stainless Steel EFW Pipe Double Welded Pipe

ASTM A358 TP304H EFW pipe is an electric-fusion-welded, high-carbon (0.04–0.10%) stainless steel pipe. Manufactured from plate, it is solution-annealed for enhanced creep-rupture strength above 550°C. Specified under Class 1 for 100% radiography, it is designed for high-temperature, pressure-retaining services like boiler headers and refinery transfer lines. Choose ASTM A358 over ASTM A312 for welded pipe because A358 is exclusively designed for large-diameter, heavy-wall fabrication from formed plates using double-sided submerged arc welding (SAW). It enforces strict radiographic examination classes (e.g., Class 1 = mandatory 100% RT) critical for verifying weld integrity under high-temperature creep conditions.

Equivalent Grade of ASTM A358 Grade 304H Stainless Steel Welded Pipe EFW Pipe

Grade	UNS No	Old British		Euronorm
		BS	En	No	Name
304H	S30409	304S51	-	1.4948	X6CrNi18-11
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 A358 Grade 304H Stainless Steel Welded Pipe EFW Pipe

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304H	min.	0.04	-	-	-0.04	-	18.0	-	8.0	-
304H	max.	0.10	2.0	0.75		0.030	20.0		10.5

Mechanical Properties of ASTM A358 Grade 304H Stainless Steel Welded Pipe EFW Pipe

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
304H	515	205	40	92	201
Note: 304H also has a requirement for a grain size of ASTM No 7 or coarser.

ASTM A358 offers different classes based on non-destructive testing requirements. For high-temperature, critical service, Class 1 is usually mandatory:

Class 1: Fully radiographed (100% RT) along the entire weld length.
Class 2: Spot radiographically examined.
Class 3: Not radiographically examined (hydrostatic test only).

For high-temperature/pressure boilers, Class 1 is strictly recommended.

Applications

Because of the robust welding method and high corrosion resistance, this pipe is used in demanding environments:

Chemical Processing: Handling acids, sulfates, and chlorides.
Petrochemical Refineries: High-temperature hydrocarbon service.
Food Processing: Where cleanliness and corrosion resistance are vital.
Water Treatment: Desalination plants and wastewater treatment (resists chloride corrosion).
Power Generation: Flue gas desulfurization (FGD) systems.