904L 1.4539 SUS904L Stainless Steel Bar
904L 1.4539 SUS904L Stainless Steel Bar
Model
DIN 1.4539 904L

Item specifics

Delivery condition
Harden
Surface Condition
Smooth,black, bright
Shape
round
Application
oil and gas industries

Review

Description

Introduction of 904L stainless:

904L stainless steel combines molybdenum and copper with iron for tremendously increased resistance to reducing acids like sulphuric acid. It stands up extremely well to chlorides in the environment for low pitting and crevice corrosion, as well as stress corrosion cracking.

Applications of 904L stainless:

904L stainless steel is widely used in the chemical, pharmaceutical, oil and gas industries. Typical applications include tanks, valves, heat exchangers, flanges and manifolds. The addition of copper to the composition of 904L stainless steel aids its suitability for components such as tanks and other products used in handling sulphuric and phosphoric acid.

Quality Standard of 904L stainless:

ASTM A182 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts
EN 10088 part3 stainless steel

STANDARD

WERKSTOFF NR.

UNS

JIS

AFNOR

BS

KS

EN

SS 904L

1.4539

N08904

SUS 890L

Z2 NCDU 25-20

904S13

STS 317J5L

X1NiCrMoCu25-20-5

Chemical Composition of 904L stainless (%):

Steel Grade

C

Si

Mn

P

S

Cr

Ni

Mo

Cu

N

904L

0.02 max

1.0 max

2.0 max

0.040 max

0.030 max

19.0-23.0

23.0-28.0

4.0-5.0

1.0-2.0

0.10 max

1.4539

0.02 max

0.7 max

2.0 max

0.040 max

0.010 max

19.0-21.0

24.0-26.0

4.0-5.0

1.2-2.0

0.15 max

Mechanical Properties of 904L stainless (Annealed)

Hardness (HB)

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation (%) (Long.)

Impact Value (J) (Long.)

230 max

530-730

230-260

35 min

100 min

Corrosion Resistance of 904L stainless:

Where a level of resistance to pitting corrosion better than 316 is required 904L stainless steel may be suitable. With its high nickel content at 25% it offers improved resistance to chloride stress corrosion cracking compared to other austenitic grades such as 304.