SUPERDUPLEX UNS S32750

General

Super Duplex Alloy UNS S32750 (F53 / 1.4410 / Alloy 32750 / SAF 2507) has excellent corrosion resistance to a wide variety of media, with outstanding resistance to pitting and crevice corrosion in seawater and other chloride containing environments, with Critical Pitting Temperature exceeding 50°C.

 

Chemical Composition (*Typical Values)

	Ni	Mo	Si	Cr	C	Mn	N	S	P	Cu
Min %	*	*	–	*	–	–	*	–	–	–
Max %	7.00	4.00	.80	25.00	.030	1.20	0.30	0.015	0.035	0.50
Other Elements	PREN = [Cr %] + 3.3 [Mo %] + 16 [N %] ≥ 40

 

Mechanical Properties

	MPA	%
Tensile Strength.	760 – 930
Yield Strength (0.2% offset)	550 min.
Elongation in 2” (50mm) or 4D, min.		25
Reduction of Area, min
Hardness	260 HB approx

 

Alternative Designations

UNS: S32750, EN: 1.4410, EN: X2CrNiMoN25-7-4, AISI – F53 (A182 / A479), Sandvik Grade (Brand): SAF 2507It is listed in NACE MR-01-75 for oil and gas service.

The data contained in this publication is for informational purposes only and may be revised at any time without prior notice. The data is believed to be accurate and reliable, but Hague Fasteners Limited makes no representation or warranty of any kind (express or implied) and assumes no liability with respect to the accuracy or completeness of the information contained herein. Although the data is believed to be representative of the product, the actual characteristics or performance of the product may vary from what is shown in this publication. Nothing contained in this publication should be construed as guaranteeing the product for a particular use or application.