ASTM A249 UNS N08904 Welded and ERW Tube Suppliers, Get free quote Now!

904L Stainless Steel Seamless Tube

904L Stainless Steel Seamless Tube

ASTM B677 UNS N08904 Tube

ASTM B677 UNS N08904 Tube

SA 213 TP 904L Coiled Tube

SA 213 TP 904L Coiled Tube


No need to pay extra when you can buy DIN 1.4539 EFW Tubes in exact sizes, check SS 904L Heat exchanger Tube Specification

Sulfuric acid is a highly corrosive acid and is used in several industries including chemical processing, dyeing, textiles, etc. Withstanding sulfuric acid is a difficult task, especially since metals undergo rapid degeneration. Therefore, the development of 904l Stainless Steel Seamless Tubing material is integral for the sustenance of these applications. Because sulfuric acid is a very strong acid, it takes a durable material like a super austenitic stainless steel to survive in these applications.

SS 904L Cold Rolled Coiled Tubing is called a super austenitic stainless steel alloy because it has a high PREN value, particularly compared to other conventional stainless steel alloys including grade 304 and grade 316. The pitting resistance equivalent number of WERKSTOFF NR.1.4539 Heat exchanger Tube is valued at more than 37. Furthermore, many buyers prefer the use of this material because the ASTM A213 TP 904L Instrumentation Tubes outperform both grade 304 and grade 316 in environments that are conducive to stress related corrosion cracking.

The high content of both nickel and molybdenum in the alloy increases the ability of the ASTM A249 TP 904L Welded Tube to withstand chloride ion induced stress corrosion cracking. Generally, chloride ions have an adverse effect on the more traditional stainless steel alloys. Though both welded and seamless tubes in this alloy are durable, the 904L Stainless Steel Seamless Tube can bear pressure that is almost 20% more than the welded kind. However, one has to understand that the cost of producing a seamless UNS N08904 EFW Tube is more than the welded kind.


ASTM B677 UNS N08904 Tubing Specification


ASTM, AISI, GB, JIS, customers' requests available


Round Tube: OD: 16-119mm or customized




6m or according to customers' request


Free sample is available, but freight should be paid by you


Outer diameter: ±0.2mm

Thickness: ±0.05mm

Length: ±0.5mm


In plain end or bevelled ends or as your requirements

Welding Line Type

ERW (Electrical Resistance Weld)


A. Sanded

B. Gloss #400,Mirror #600 - #1000

C. Brushed

D. Wood Grain

E. Embossed, Threaded


Decorations, constructions, food industry, etc.



Round Pipe Size

16, 17, 18, 19, 20, 21, 22, 23, 25, 28, 31.8, 35, 36, 38.1, 48, 50.8, 60, 63.5, 76.2, 89, 101, 114 mm

Square Pipe Size

17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 30, 36, 38, 50 mm

Rectangle Pipe Size

10*30, 10*40, 10*50, 20*10, 23*11, 24*12, 25*13, 28*25, 28*13, 29*14, 30*15, 30*20, 30*22, 34*22, 36*23, 50*25, 60*30, 75*45, 95*45 mm


exact 0.25, 0.28, 0.32, 0.37, 0.41, 0.51, 0.61, 0.71, 0.91, 1.11, 1.15, 1.41 mm


6m or according to customer’s request

Outer diameter



Outer diameter :±0.2mm

Thickness :±0.02mm

Length :±0.5mm

Process method

Code drawn, annealed with nitrogen protection, ultrasonic, automatic shape, polished


Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector


Press machine, Bending machine, Pushing Machine, electric bevelling machine Sand-blasting machine, etc


West Europe / Japanese / Indian / USA / Korean / American / European

Test Certificates

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report


904L Stainless Steel Tube sizes
  • Size: 1/2" OD - 12" OD
  • OD: 3.00 - 219.10 mm
  • Thickness : 0.40 - 12.70 mm
  • Length: Single, Double Random & Cut Length
Different Types of SS 904L Tubes
ASME SB 677 904L Tube Chemical Composition
AISI 904L Maximum Minimum
Ni 28.00 23.00
C 0.20 -
Mn 2.00 -
P 00.045 -
S 00.035 -
Si 1.00 -
Cr 23.0 19.0
Mo 5.00 4.00
N 00.25 00.10
CU 2.00 1.00


SS TP 904L Tubing Mechanical Properties
Element Grade 904L
Density 8
Melting Range 1300 -1390 ℃
Tensile Stress 490
Yield Stress (0.2%Offset) 220
Elongation 35% minimum
Hardness (Brinell) -


Equivalent Grade of 904L SS ASTM B677 Tube
SS 904L 1.4539 N08904 SUS 890L 904S13 STS 317J5L Z2 NCDU 25-20 X1NiCrMoCu25-20-5
Ready Stock of ASTM B677 904L Tubes
904L Stainless Steel Square Tubing ASTM B677 TP 904L Polished Tube
SS B677 TP904L Tubing Stainless Steel 904L Fabricated Tube
904L SS 12mm Tube SS B677 TP904L Seamless Tubing
Stainless Steel 1.4539 High Pressure Tube UNS N08904 Thin Wall Tubing
ASTM B677 TP 904L Electropolished Tubes SS B677 TP904L Cold Drawn Seamless Tube
Stainless Steel 904L Hydraulic Tubing UNS N08904 Coiled Tube
ASME SB677 TP 904L ERW Tube  Stainless Steel 1.4539 Electropolished Tube
904L SS Rectangular Tubing ASTM B677 TP 904L CDW Tube
SS B677 TP904L Electropolish Tube 904L Stainless Steel Capillary Tubing
Stainless Steel 1.4539 Small Diameter Tubing ASME SB677 TP 904L ERW Tubing