Material No.: Alloy 24

Description

EN symbol (short)	X2CrNiMnMoN25-18-6-5
Material No.	1.4565
UNS	S 34565
AFNOR	X2CrNiMnMoN25-18-6-5 / NF EN 10088-1(05/2005) (FR)
BS	X2CrNiMnMoN25-18-6-5 / B.S EN 10088-1(05/2005) (GB)
Registered work's label	NIROSTA®(R) 4565 S alloy 24

Density kg/dm³	8,0
Hardness HB 30	140-200
Composition	chromium nickel molybdenium steels
Category	Stainless steels steel, resistant to rust and acids
Structure	austenitic
Corrosion	resistant to intercrystalline corrosion satisfactionary against pitting corrosion
Additional characteristics	high resistance in substances containing sour gas or high chloride concentrations

Chemical Composition

		C	Mn	P	S	Cr	Mo	Si	Ni	N	Nb	Cb+Ti
Alloy 24	Min %
Alloy 24	Max %
1.4565	Min %		5,0			24,0	4,0		16,0	0,40
1.4565	Max %	0,03	7,0	0,030	0,015	26,0	5,0	1,0	19,0	0,60	0,150
(Key to steel 2010) SEW 400 deviations for MnCr;Mo
S 34565	Min %		5,00			23,0	4,0		16,0	0,40
S 34565	Max %	0,03	7,00	0,030	0,010	25,0	5,0	1,00	18,0	0,60		0,10
ASTM A312 (UNS S34565)

Physical properties

Property	Value
Density: kg/dm³	8,0
Hardness: HB 30	140-200
polishable	yes
magnetizable	non

Temperature T °C/F (°C/F)	Specific heat J / kgK (Btu / lb °F)	Thermal conductivity W/mK (Btu·in / ft²·h·°F)	Modulus of elasticity kN/mm² (10³ ksi)	Expansion rate from 70°F bis T 10^-6 / K (10^-6 / °F)
20 / 68	460 (--)	12 (--)	198 (--)
100 / 212			186 (--)	14,5 (--)
200 / 392			177 (--)	15,5 (--)
300 / 572			170 (--)	16,3 (--)
400 / 752			165 (--)	16,8 (--)
500 / 932			158 (--)	17,2 (--)

temperature	0,2% Yieldstrength in high temperatures	1,0% Yieldstrength in high temperatures
°C / °F	Rp0,2	Rp1,0
	N/mm²/ksi	N/mm²/ksi
100 / 212	>=350 />=50,7	>=400 / >=58
200 / 392	>=270 / >=39,1	>=310/ >=44,9
300 / 572	>=240 />= 34,8	>=270 />=39,1
400 / 752	>=210 / >=30,4	>=240/ >=34,8
500 / 932	>=200 / >=29,0	>=240 />= 34,8
ksi value calculated

Mechanical properties (20°C / 68°F)

0,2%Yield strength Rp0,2(N/mm²)/ksi	>=420 />=60,9		<=160 mm
1%Yield strength Rp 1,0(N/mm²)/ki Yield strength ksi / (Mpa)	>= 460/>=66,7 60/ (415)	<=160 mm	ASTM A312 (S 34565)
Tensile strength Rm (N/mm²) Tensile strength ksi / (Mpa)	(800-950)/116-137,7 115/ (795)	<= 160mm	ASTM A312 (S 34565)
Elongation %	>=35		<= 160mm
impact work ISO-V (J)	>=100		<= 160mm
E-modul (Mpa)	192000

Temparature information

Application area
Operation temperature	ºF to 842 ºF	operating temperature limit

Solution heat treatment
Working temperature	2048 ºF to 2138 ºF
Explanation report	cooldown: air/water

Solution heat treatment
Working temperature	1742 ºF to 2192 ºF
Explanation report	cool down: air

Standards / information

Standards	Desciption
SEW 400 (1997-02)	Rolled and forged stainless steels

Process information

Cold forming	cold form material in annealed state

Chip removing process	tendency to cold work hardening -low cutting rate -moderate feed speed -constant tool application

Welding
- Material classification acc. CEN ISO/TR 15608	8.2
- Type	gas fusion welding well weldable manual arc protective gas
- Add. material	1.4466
- Hints	pre-heat 302°F

Main fields of application

Details of application	mostly used in sea water plants, crude oil transportation and environmental technologies
Certifications
Environmental technology
Flue gas desulphurisation plants
sea and lake water plants	Meerwasserentsalzungsanlagen
Chemical Industry	chemischer Anlagenbau
Tunnelbau
building industry
offshore plants	Meerwasserentsalzungsanlagen

Range of products

Product type	Product
Plates / Sheets	plates/sheets plate/sheet cuts
Fittings	welded elbows welded reductions Welded T-pieces seamless elbows seamless reductions seamless T-pieces
Pipes / Tubes	welded pipes/tubes seamless pipes/tubes
Bar steel	flat steel round bar steel

Liability exclusion

All aforementioned specifications serve as a general orientation and have to be reviewed depending on the conditions of use.
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