ASTM A790/A789 Uns S31803 Duplex Steel Seamless Tube

• Type: Seamless
• Technique: Cold Drawn
• Usage: Pipeline Transport, Chemical Industry
• Section Shape: Round
• ASME SA789/SA789m: Uns S31803
• Transport Package: Wooden Case
• Model NO.: ASTM A790/789 UNS S31803
• Specification: ASTM
• Trademark: C&N
• Origin: China
• Production Capacity: 1000tons/Month

Product Description

UNS S31803, F51, 1.4462 duplex stainless steel is designed to combine improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys 

Duplex UNS S31803, F51, 1.4462duplex alloy resists chloride environments and sulphide stress corrosion 
Duplex UNS S31803, F51, 1.4462 is also roughly double the strength of standard austenitic stainless steels 

These attributes mean that Duplex UNS S31803, F51, 1.4462 can be used successfully as an alternative to standard stainless steel specifications in applications where higher strength and resistance to stress corrosion cracking is required 


ASME SA789/SA789M ( ASTMA789/A789M )
General use standard specification for seamless and Welded Ferritic / austenitic stainless steel tube
ASME SA790/SA790M ( ASTMA790/A790M )
Seamless and Welded Ferritic / austenitic stainless steel tube
 
1.Outer Diameter: 1/4" - 16" 
2.Wall thickness:1 mm-50mm 
3.Length: 6 metre or as per customer request 


Chemical Composition

	C	Mn	P	S	Cr	Mo	Si	Ni	N
S 31803	Min %					21,00	2,50		4,50	0,08
Max %	0,030	2,00	0,030	0,020	23,00	3,50	1,00	6,50	0,20
ASTM A 790 (S 31803)
1.4462	Min %					21,00	2,50		4,50	0,100
Max %	0,030	2,00	0,035	0,015	23,00	3,50	1,00	6,50	0,220
(Key to steel 2010)

Physical properties

Property	Value
Density: kg/dm3	7,8
Hardness: HB 30	<=270
Brinell Hardness Rockwell C	290 (S 31803-ASTM A 790) 30,5 (S 31803-ASTM A 790)