TP904L / UNS N08904 / 1.4539

Description

1.4539/ AISI 904L is a high-alloy austenitic stainless steel with a high molybdenum content, additional copper content and very low carbon content.

Special Properties

Excellent corrosion resistance to sulphuric and phosphoric conditions. High resistance to localized corrotion such as pitting and crevice corrosion , as well as to stress-corrotion.

Application

Cellulose industry, offshore, refineries, seawater technology, hot sulphuric and phosphoric environment.

Suitable welding filler materials

1.4539;1.4519

Standards

Material No :1.4539 EN Degisnation :X1NiCrMoCu25-20-5 AISI/SAE :904 L UNS :N08904

Chemical Properties

C
%≤ 0.02 Si
≤ %0.70 Mn
≤ %2.00 P
≤ %0.03 S
≤ %0.01 Cr
%19.0 - 21.0 Mo
%4.00 - 5.00 Ni
%24.0 - 26.0 N
%0.15 Cu
%1.20 - 2.00

Mechanical Properties 20°C

Hardness HB 30
≤ HB230 0.2% Yield StrengthR_p
≥ N/mm²230 Tensile Strength
R_mN/mm²530-730 Elongation A₅
≥ %35/30 Modulus of Elasticity
kN/mm²195