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Home > Product > Special Alloy Fastener > Duplex Stainless Steel > Super Duplex Stainless Steel(PREN range: 38–45) - UNS No. S32750,S32760,S32550,S32520

Super Duplex Stainless Steel(PREN range: 38–45) - UNS No. S32750,S32760,S32550,S32520

Tel: 0086-21-68413710
E-mail: jminfo@jm-industry.com

Description
Application
TECHNICAL DATA

Typically grade EN 1.4410 up to so-called hyper duplex grades (PREN: >45) developed later to meet specific demands of the oil and gas as well as those of the chemical industries. They offer a superior corrosion resistance and strength but are more difficult to process because the higher contents of Cr, Mo, N and even W promote the formation of intermetallic phases, which reduce drastically the impact resistance of the steel. Faulty processing will result in poor performance and users are advised to deal with reputable suppliers/processors.Applications include deepwater offshore oil production.

Lean Duplex
ID	Name	ASTM	EN-Nr.	C max.	Cr	Ni	Mo	N	Mn max.	Cu	W	PRE*
	2101	S32101	1.4162	0,04	21,0-22,0	1,35-1,7	0,1 – 0,8	0,20-0,25	4,0-6,0	0,1-0,8	–	26
F66	2202	S32202	1.4062	0,03	21,5-24,0	1,0-2,8	0,45	0,18-0,26	2,0		–	26
F68	2304	S32304	1.4362	0,03	21,5-24,5	3,0-5,5	0,05-0,6	0,05-0,20	2,5	0,05-0,60	–	26
	2102	S82011		0,03	20.5-23.5	1.00-2.00	0,1 – 1.00	0.15-0.27	2.00-3.00	0.5	–	26
Standard Duplex
ID	Name	ASTM	EN-Nr.	C max.	Cr	Ni	Mo	N	Mn max.	Cu	W	PRE*
F51	2205	S31803	1.4462	0,03	21,0-23,0	4,5-6,5	2,5-3,5	0,08-0,20	2,0	–	–	33
F60	2205	S32205	1.4462	0,03	22,0-23,0	4,5-6,5	3,0-3,5	0,14-0,20	2,0	–	–	35
	2003	S32003	1.4662	0,03	19.5-22.5	3.0-4.0	1.5-2.0	0.14-0.2	2,0	–	–	30
	2404	S82441	1.4662	0,03	23.0-25.0	3.0-4.5	1.00-2.00	0.20-0.30	2.5-4.0	0.10-0.80	–	33
Super Duplex
ID	Name	ASTM	EN-Nr.	C max.	Cr	Ni	Mo	N	Mn max.	Cu	W	PRE*
F59		S32520	1.4507	0,03	24,0-26,0	5,5-8,0	3,0-4,0	0,20-0,35	1,5	0,5-2,0	–	>40
F61	255	S32550	1.4507	0,04	24,0-27,0	4,5-6,5	2,9-3,9	0,10-0,25	1,5	1,5-2,5	–	>40
F53	2507	S32750	1.441	0,03	24,0-26,0	6,0-8,0	3,0-5,0	0,24-0,32	1,2	0,50	–	43
F55	Z100	S32760	1.4501	0,03	24,0-26,0	6,0-8,0	3,0-4,0	0,20-0,30	1,0	0,5-1,0	0,5-1,0	42
Hyper Duplex
Name		ASTM	EN-Nr.	C max.	Cr	Ni	Mo	N	Mn max.	Cu	W	PRE*
2707		S32707	–	0,03	26,0-29,0	5,5-9,5	4,0-5,0	0,30-0,50	1,5	1,00	–	49
3207		S33207	–	0,03	29,0-33,0	6,0-9,0	3,0-5,0	0,40-0,60	1,5	1,00	–	50
Austenitic Grades
	ASTM	EN-Nr.	C max.	Cr	Ni	Mo	N	Mn	Cu	W	PRE*
	304L	1.4307	0,03	17,5-19,5	8,0-10,5	–	0,11	–	–	–	18
	316L	1.4404	0,03	16,5-18,5	10,0-13,0	2,0-2,5	0,10	–	–	–	24
	904L	1.4539	0,02	19,0-21,0	24,0-26,0	4,0-5,0	0,15	–	1,20	–	34
	S31254	1.4547	0,2	19,5-20,5	17,5-18,5	6,0-7,0	0,18-0,25	–	0,5-1,0	–	43

Forms of Super Duplex SS Fastener Available at JM-INDUSTRY

	Product name	Standard No.	Size
BOLT	HEX HEAD BOLT	ANSI/ASME B18.2.1, DIN933, DIN931	1/4”-4”, M5-M100
	SOCKET CAP SCREW	ANSI/ASME B18.3, DIN912, DIN7991, DIN913/916	1/4”-4”, M5-M100
	FLANGE BOLT	ANSI/ASME B18.2.3.4M-2001, DIN 6921	1/2”-4”, M10-M100
	EYE BOLT	ANSI/ASME, DIN standard	1/2”-4”, M10-M100
	OTHER BOLT	U BOLT, T BOLT, J BOLT, SQURE HEAD BOLT, SHOULDER BOLT, AND NON-STANDARD BOLT ACCORDING TO CUSTOMER NEEDS.
STUD	THREADED ROD/BAR	ANSI/ASME, DIN975/DIN976	3/8”-4”, M5-M100
STUD	DOUBLE ENDS STUDS	ANSI/ASME, DIN STANDARD	3/8”-4”, M5-M100
NUT	HEX NUT	ANSI/ASME B18.2.2, DIN934	1/4”-4”, M5-M100
	HEAVY HEX NUT	ANSI/ASME B18.2.2, DIN standard	1/2”-4”, M12-M100
	NYLON LOCK NUT	ANSI/ASME B18.16.6-2008, DIN 985,DIN982	1/2”-4”, M12-M100
	FLANGE NUT	ANSI/ASME, DIN6923	1/2”-4”, M12-M100
	COUPLING NUT/LONG NUT	ANSI/ASME, DIN STANDARD	1/2”-4”, M12-M100
	SQUARE NUT	ANSI/ASME, DIN 557	1/2”-4”, M12-M100
	HEX DOOMD CAP NUT	ANSI/ASME, DIN1587	1/2”-4”, M12-M100
	WING NUT	ANSI/ASME, DIN315	1/2”-4”, M12-M100
WASHER	FLAT WASHER	ANSI/ASME B18.22.1, DIN125	3/8”-4”, M6-M100
WASHER	SPRING WASHER	ANSI/ASME B18.21.1, DIN127	3/8”-4”, M6-M100

Testing before shipping

Step 1: Size Detection

Step 2: GO Gauge and NO-GO Gauge Detection

Step 3: Chemical Composition Detection

Step 4: Mechanical Properties Test

Step 5: The product is carefully packaged

Duplex stainless steels are usually selected for their high mechanical properties and good to very high corrosion resistance (particularly to stress corrosion cracking).

Oil and Gas:
a wide range of equipment: flowlines, manifolds, risers, pumps, valves, etc.
Pulp and Paper:
digesters, pressure vessels, liquor tanks, etc.
Chemical engineering:
pressure vessels, heat exchangers, condensers, distillation columns, agitators, marine chemical tankers, etc.
Water:
desalination plants, large tanks for water storage, waste water treatment
renewable energy: Biogas tanks
Mobility: tramcars and bus frames, tank trucks, iron ore wagons
Engineering: pumps, valves, fittings, springs, etc.