ASTM B673 Stainless Steel 904L Seamless Pipe

What is 904L stainless steel pipe?

904L (UNS N08904) is a high-alloy austenitic stainless steel containing approximately 19-23% chromium, 23-28% nickel, 4-5% molybdenum, and copper, offering excellent resistance to pitting corrosion, crevice corrosion, and aggressive chemical environments (including strong acids and chloride-rich media). This makes it ideal for chemical, petrochemical, and marine applications requiring long-term durability.

 

If you are looking for high-performance, corrosion-resistant piping solutions, we offer high-quality, reliably delivered ASTM B673 904L stainless steel seamless pipes, widely used in chemical plants, desalination plants, heat exchangers, offshore oil and gas pipelines, pharmaceutical production, and high-purity fluid systems.

 

 

Our ASTM B673 904L seamless pipes are manufactured using processes such as vacuum induction melting, hot extrusion, cold drawing or hot rolling, solution annealing, and pickling, ensuring a dense, defect-free microstructure, uniform wall thickness, and precise dimensional tolerances. Product forms include ASTM B6673 904L seamless round tubes, ASTM B673 904L thick-walled tubes, ASTM B673 904L precision cut tubes, and ASTM B673 904L custom diameter tubes. Surface treatments include polishing, pickling, or bright annealing, with typical hardness controlled at <=220 HB to ensure optimal machinability and formability.

 

Specification List of Stainless Steel 904L Pipe

	ASTM B673, B677 / ASME SB673, SB 677
	1/2 – 16″ NB
	1/2 – 24″ NB
	6 – 100″ NB
	1/8 TO 30″NB IN
< Chart/td>	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

 

Composition Standard of B673 TP 904L Welded Pipes

	C			P	S
SS 904L	0.020 max	2.00 max	1.00 max	0.040 max	0.030 max	19.00 - 23.00	4.00 - 5.00 max	23.00 - 28.00	1.00 - 2.00

 

Mechanical Analysis of ASTM B673 TP 904L Pipe

			Yield Strength (0.2%Offset)
7.95 g/cm3	1350 ℃ (2460 ℃F)	Psi - 71000 , MPa - 490	Psi - 32000 , MPa - 220	35 %

 

Stainless Steel 904L Pipe Wall Thickness & Length

	1/8" ~ 8"	SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160	Upto 6 Meters
Nickel 201 Seamless Pipe (Custom Sizes)	5.0mm ~ 203.2mm		Upto 6 Meters
Nickel 201 Welded Pipe (in Stock + Custom Sizes)	5.0mm ~ 1219.2mm	1.0 ~ 15.0 mm	Upto 6 Meters

 

Application of Stainless Steel 904L Pipe

Chemical Processing Industry: Widely used in equipment handling aggressive acids (sulfuric, phosphoric, acetic, formic) due to its high nickel and molybdenum content.
Oil & Gas Industry: Utilized in subsea pipelines, offshore rigs, and refineries for transporting corrosive, high-chloride materials.
Marine & Seawater Applications: Ideal for seawater cooling systems, condenser tubes, and offshore processing equipment because of its resistance to pitting and crevice corrosion.
Pollution Control: Used in gas scrubbing systems and flue gas desulfurization (FGD) plants in coal-fired power stations to handle corrosive fumes and wet gases.
Pulp and Paper Industry: Employed in bleaching plants and digestion systems due to resistance to chloride attacks.

 

Price list of Stainless Steel 904L Pipe	SUS 904L Pipe Price in USD
SS 904L Hollow Pipe Size:235mm Odx 120mm Id X 235mm Long	2549.14 USD
904L grade stainless steel seamless cold-drawn tubes	$4.66

 

We ensure product quality through comprehensive chemical and mechanical property testing, tensile and impact analysis, dimensional inspection, surface quality control, and non-destructive testing (UT/ET). Each batch of products is accompanied by an EN 10204 3.1 / ASTM B673 material certificate, and third-party inspection is available upon request. With extensive export experience to Europe, North America, the Middle East, and Southeast Asia,