AISI 904L Stainless Steel Plate and Sheet
AISI 904L Stainless Steel Plate and Sheet
Model
904L

Item specifics

Width
50-1500mm
Delivery condition
Cold Rolled / Hot Rolled
Surface condition
Black,Acid Picked,No. 1, 2B, Shot Blasted, Polishe

Review

Description

AISI 904L Stainless Steel Plate and Strips

 

904L Strips Introduce

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.

 

904L Strips Applications  

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  

ASTM A182 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts

EN 10088 part3 stainless steel

 

904L Stainless Grade Comparison

Grade

UNS No

Old British

Euronorm

Swedish SS

Japanese JIS

BS

En

No

Name

904L

N08904

904S13

1.4539

X1NiCrMoCuN25-20-5

2562

These comparisons are approximate only. The list is intended as a comparison of functionally similar materials, not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

 

904L Chemical Component

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

 

Mechanical Property

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B)

Brinell (HB)

904L

490

220

35

70-90 typical

Rockwell Hardness value range is typical only; other values are specified limits.

 

904L Plates Specification


Produce Size

Cold Rolled : 0.01-4mm
Hot Rolled : 4-40mm

Delivery Condition

Annealed,Normalized,Quenched and Tempered

Surface

Black,Acid Picked,No. 1, 2B, Shot Blasted, Polished

Loading Time

10-30 days

Trade Item

FOB CIF CFR DDU DDP

Insepction

Visual, Chemical, Mechanical, UT, ET

Report

3.1 MTC, SGS, BV, TUV

 

 

Heat Resistance

Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.

 

Heat Treatment

Grade 904L stainless steels can be solution heat-treated at 1090 to 1175°C, following by rapid cooling. Thermal treatment is suitable for hardening these grades.

 

Corrosion Resistance  

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.

 

Welding  

904L stainless steel can be welded using common fusion and resistance methods. A more highly alloyed filler is recommended to give the optimum corrosion properties in the weld. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding 904L stainless steel.