UNS S31803 duplex stainless steel round bar

Grade 2205 UNS S31803 duplex stainless steel alloy bar peeled finish ASTM A276 standard


Duplex 2205 duplex stainless steel alloy is 22% chromium, 2.5% molybdenum, and 4.5% of nickel, nitrogen alloyed stainless steel. 2205 is characterised by:
1.high mechanical strength – roughly twice the proof strength of austenitic stainless steels.
2.physical properties that offer design advantages.
3.good weldability.
4.high resistance to stress corrosion cracking in chloride-bearing environments and in environments containing hydrogen sulphide.
5.high resistance to general corrosion, pitting and crevice corrosion.
6.high resistance to erosion corrosion and corrosion fatigue.

Chemical Requirment

Grade&Standard		Composition,% max
	C	Si	Mn	P	S	Cr	Ni	Mo	N
2205  ASTM A240	0.03	1.0	2.0	0.03	0.03	22-23	4.5-6.5	3-3.5	0.14-0.2
UNS S31803 ASTM A790	0.03	1.0	2.0	0.03	0.03	21-23	4.5-6.5	2.5-3.5	0.08-0.2
F51 ASTM A182	0.03	1.0	2.0	0.03	0.03	21-23	4.5-6.5	2.5-3.5	0.08-0.2
1.4462	0.03	1.0	2.0	0.035	0.015	21-23	4.5-6.5	2.5-3.5	0.1-0.2