Alloy 904L Tubing

Alloy 904L is a low carbon, high alloy austenitic stainless steel which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate.

The addition of copper to this grade gives it corrosion resistant properties superior to the conventional chrome nickel stainless steels, in particular to sulfuric, phosphoric and acetic acids.

Product Specifications
ASTM A213/A269, ASME SA213 AVG wall, NACE MR0175/MR0103

ALLOY 904L (UNS N08904) CHEMICAL COMPOSITION % (MAX.)
Cr
Chromium
Ni
Nickel
C
Carbon
Mo
Molybdenum
Mn
Manganese
Si
Silicon
P
Phosphorous
S
Sulfur
N
Nitrogen
Cu
Copper
19.0-23.023.0-28.0.024-5%2.01.00.040.030.11.0-2.0
THEORETICAL BURST PRESSURE
ODWALLIDPSI
0.2500.0350.18016,898
0.2500.0490.15223,657
0.2500.0650.12031,382
0.3750.0350.30511,265
0.3750.0490.27715,771
0.5000.0350.4308,946
0.5000.0490.40212,524
0.5000.0650.37016,614
0.7500.0650.62011,076
1.0000.0650.8708,307
Values are not guaranteed or warranted and are presented for illustration purposes only.
DIMENSIONAL TOLERANCES
OUTSIDE DIAMETER (OD)OD TOLERANCEWALL TOLERANCE
UP TO 1/2″+/- .005″+/- 15%
1/2″ to 1-1/2″ EXCL.+/- .005″+/- 10%
TYPICAL APPLICATIONS
Acid Production, Fertilizer Processing, Oil Refining, Pulp and Paper Processes, Gas Scrubbers, Seawater Cooling Equipment, Control and Instrumentation
SIZE RANGE
Outside Diameter (OD)Wall Thickness
1/4″- 1″.035″ – .065″
Cold Finished and Bright Annealed Tube
MECHANICAL PROPERTIES
YIELD STRENGTH 0.2% OFFSET31 KSI min.
TENSILE STRENGTH71 KSI min.
ELONGATION (MINIMUM 2 INCHES)35%
FABRICATION
Alloy 904L is non-magnetic in all conditions and has excellent formability and weldability. The austentic structure also give this grade excellent toughness, even down to cryogenic temperatures.

Alloy 904L Tubing (Printable PDF document)