SUS329J4L、X2CrNiMoCuN25-6-3

Stainless steel: 329J4L

characteristic:

SUS329J4L austenitic-ferritic duplex stainless steel. Compared with SUS 329J1, due to its extremely low C content and high Mo content, it is particularly resistant to local corrosion, and has strong corrosion resistance to phosphoric acid, acetic acid, and various sulfides.

use:

Widely used materials for chemical devices, suitable for places where SUS 316 cannot be used in various anti-pollution, petrochemical, fiber, and seawater treatment equipment. Due to its high strength, it can also be used in harsh environments that require high mechanical strength and corrosion resistance in equipment such as water gates, oil well pipes, and geothermal power generation.

 

chemical composition:

C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni	Mo	N
0.030	1.00	1.50	0.030	0.040	24.00 26.00	5.50 7.50	2.50   3.50	0.08   0.30

 

Mechanical properties:

Tensile strength σb (MPa): ≥620

Conditional yield strength σ0.2 (MPa): ≥450

Elongation δ5 (%): ≥18

Section shrinkage ψ (%): ≥40

Hardness: ≤302HB; ≤320HV

 

Physical properties:

Melting point: 1420 ～ 1462 ° C;

 

delivery status:

Generally, it is delivered in a heat-treated state, and the type of heat treatment is specified in the contract; if it is not specified, it is delivered in a non-heat-treated state.