904L Stainless Steel Pipe

1. Standard: ASTM A312 / ASME SA312、ASTM A213/ASME SA213、ASTM B677 / ASME SB677
2. Size: 1/2”- 48”
3. Thickness: 0.5mm-30mm
4. Equivalent: UNS N08904, WNR.1.4539, AISI 904L

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ANSI/ASME B36.19M pdf

Product Introduction

904L stainless steel pipe, also known as super stainless steel, has good corrosion resistance in dilute sulfuric acid. In pure sulfuric acid with a concentration of 0-98%, the service temperature of 1.4539 stainless steel round pipe can be as high as 40 degrees Celsius. In pure phosphoric acid with a concentration of 0-85%, its corrosion resistance is very good. Stainless steel 904L pipe includes stainless steel seamless pipes and welded pipes, which are particularly suitable for occasions with strong corrosive, high temperature, high pressure and other requirements.

ASTM A312 UNS N08904 stainless steel pipe standard:

ASTM A312: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

ASTM B677 : Standard Specification for UNS N08904, UNS N08925, and UNS N08926 Seamless Pipe and Tube

ASME B36.19：Specification for Stainless Steel Pipes

ASTM A312 TP904L Stainless Steel Pipe Specifications

Specifications	ASTM A 312 / ASME SA 312
Specifications	ASTM B677 / ASME SB 677
Dimensions	ASTM, ASME and API
SS 904L Pipes	1/2″ NB – 16″ NB
ERW 904L Pipes	1/2″ NB – 24″ NB
EFW 904L Pipes	6″ NB – 100″ NB
Size	1/8″NB TO 30″NB IN
Schedule	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type	Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length	Single Random, Double Random & Cut Length.
End	Plain End, Beveled End, Treaded

Alloy 904L Steel Pipe Size

OD mm.	NPS in.	WT mm.	Sch	Kg/m
13.72	0.25	1.65	10S	0.5
		2.24	40S	0.64
		3.02	80S	0.81
17.15	0.375	1.65	10S	0.64
		2.31	40S	0.86
		3.2	80S	1.12
21.34	0.5	2.11	10S	1.02
		2.77	40S	1.29
		3.73	80S	1.65
26.67	0.75	2.11	10S	1.3
		2.87	40S	1.71
		3.91	80S	2.23
33.4	1	2.77	10S	2.13
		3.38	40S	2.54
		4.55	80S	3.29
		6.352)	160S	4.3
42.16	1¼	2.77	10S	2.73
		3.56	40S	3.44
		4.85	80S	4.53
		6.352)	160S	5.69
48.26	1½	2.77	10S	3.16
		3.68	40S	4.11
		5.08	80S	5.49
60.33	2	2.77	10S	3.99
		3.91	40S	5.52
		5.54	80S	7.6
		8.742)	160S	11.29
73.03	2½	3.05	10S	5.35
		5.16	40S	8.77
		7.01	80S	11.59
88.9	3	3.05	10S	6.56
		5.49	40S	11.47
		7.62	80S	15.51
		11.132)	160S	21.67
101.6	3½	3.05	10S	7.53
		5.74	40S	13.78
		8.08	80S	18.92
114.3	4	3.05	10S	8.5
		6.02	40S	16.32
		8.56	80S	22.67
		13.492)	160S	34.05
141.3	5	6.55	40S	22.1
		9.53	80S	31.44
		15.882)	160S	49.87
168.28	6	3.4	10S	14.04
		7.11	40S	28.69
		10.97	80S	43.21
		18.262)	160S	68.59
219.08	8	8.18	40S	43.2
		12.7	80S	65.63
		23.012)	160S	112.97

1.4539 AISI 904L Chemical Properties:

Typical Chemical Composition % (max values, unless noted)
Grade	Cr	Ni	C	Si	Mn	P	S	Mo	Cu	Fe
904L	min: 19 max: 23	min: 23 max: 28	0.02 Max	1.0 max	2.0 max	0.045 max	0.035 max	min: 4 max: 5	min: 1 max: 2	balance

UNS N08901 Stainless Steel Mechanical Properties:

Grade	Tensile Strength (MPa) min	Elongation (% in 50mm) min	Yield Strength 0.2% Proof (MPa) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
904L	490	35	220	70-90 typical	-

TP904L Stainless Steel Performance Characteristics

Resistant to strong reducing acids such as sulfuric acid
Easy to weld
Medium and high temperature environment
Resistant to crevice corrosion
Non-magnetic alloy outside
Resistant to stress corrosion cracking performance

Stainless Steel 904L Pipe Fabrication

When our manufacturers produce steel pipes, they perform mechanical tests on ss 904L pipes to determine whether they meet the tensile properties. According to ASTM A312, all of our en 1.4539 stainless steel is supplied in a heat-treated state with appropriate heat treatment temperature and cooling or testing principles to ensure the quality of the pipe.