Material Data Sheet 1.4539, X1NiCrMoCu25-20-5

Material data for 1.4539

The material 1.5439 is a corrosion-resistant stainless steel with the abbreviation X1NiCrMoCu25-20-5. In the American ASME standard, it has the designation UNS N08904/904L.

How far does the scope of the information listed here extend?

The data below applies to hot-rolled and cold-rolled sheet and strip from our product range.

The information given here on properties/usability is not a guarantee of properties, but is for descriptive purposes only. The information is for advisory purposes and is based on information from the standards/sources: DIN EN 10088-2, DIN EN 10028-7, AD 2000 W2/W10, ASME code SA240/480, reference book Steel Code.

We cannot accept any liability for the information or the results of processing/application.

What are other designations for 1.4539?

ASME (incl. double attestation): UNS N08904/904L

EN (incl. double attestation): 1.4539

How is the material 1.4539 heat-treated and processed?

Temperature: 1,060-1,140 °C
Cooling methods: Water, air
Microstructure: (super-)austenitic
Microstructure Polishable: yes
Possible welding processes: Gas-shielded welding, arc welding, resistance welding

	C	Si	Mn	P	S	Cr	Ni	Mo	Cu	N
min						19,000	24,000	4,000	1,200	0,040
max	0,020	0,700	2,000	0,030	0,010	21,000	26,000	5,000	2,000	0,100

min

19,000

24,000

4,000

1,200

0,040

max

0,020

0,700

2,000

0,030

0,010

21,000

26,000

5,000

2,000

0,100

Mechanical properties at room temperature:

(in the solution-annealed state)

The values below take into account the above-mentioned double attestations. Limit values from EN 10088-2, EN 10028-7, AD 2000 W2/W10 and according to ASME SA240/480.

C = cold-rolled strip; H = hot-rolled strip; P = plate

In accordance with AD 2000 regulations, the KBZ is only carried out and confirmed in the certificate for thicknesses > 20 mm.

		Yield strength	Tensile Strength	Elongation at break	Notch impact energy (ISO-V)
C	8	240	270	530–720	40	35	60
H	13,5	240	270	530–720	40	35	60
P	75	220	260	530–720	40	35	60

Yield strength

Tensile Strength

Elongation at break

Notch impact energy (ISO-V)

Product form

Thickness [mm] max

Rp_0,2

Rp_1,0

A₅

A₅₀

≥ 10 mm Thickness

[N/mm2] min

[N/mm2]

[%] min

[J] transverse

240

270

530–720

13,5

240

270

530–720

220

260

530–720

Density at 20 °C	Modulus of elasticity at 20 °C	Specific heat capacity at 20 °C	Thermal conductivity at 20 °C	Electrical resistance at 20 °C
8	195	0,45	12	1,00

Density
at 20 °C

Modulus of elasticity
at 20 °C

Specific heat capacity
at 20 °C

Thermal conductivity
at 20 °C

Electrical resistance
at 20 °C

kg/dm³

GPa

J / g x K

W / K x m

Ω x mm² / m

195

0,45

1,00

Field of application

Construction industry, chemical industry, shipbuilding, fertiliser production, use in seawater, medical and pharmaceutical industry, pulp industry, flue gas desulphurisation plants. Particularly resistant to highly corrosive media (e.g. phosphoric, sulphuric or hydrochloric acid). As delivered, the steel is resistant to intergranular corrosion (e.g. ASTM A262 Pr. E / EN 3651-2); in the welded condition, resistance is also guaranteed due to the low C content.

Material No.: 1.4539

Material data for 1.4539

How far does the scope of the information listed here extend?

What are other designations for 1.4539?

How is the material 1.4539 heat-treated and processed?

Chemical Composition:

Mechanical properties at room temperature:

(in the solution-annealed state)

Physical properties:

Field of application

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