Stainless Steel Grade 2205 - Duplex High Strength Grade

 

Chemical Composition

The following table lists alloy 2205 stainless steel chemical composition based on cast analysis.

			Chemical Composition, %
Country	Steel Grade (UNS)	Standard	C, ≤	Si, ≤	Mn, ≤	P, ≤	S, ≤	Cr	Ni	Mo	N
US	2205 (UNS S32205, UNS S31803)	ASTM A276/A276M; ASTM A240/A240M	0,030	1,00	2,00	0,030	0,020	22.0-23.0	4,5-6,5	3.0-3.5	0.14-0.20

Physical Properties

Notes:

1 g/cm3 = 1 kg/dm3 = 1000 kg/m3;

1 μΩ·m = 1 Ω·mm²/m

1 GPa = 1 kN/mm2

Physical Properties
Density, g/cm3 (lb/in3)	7,83 (0.283)
Melting point, ℃ (°F)	1385-1440 (2525-2630)
Magnetic	Yes
Electrical resistivity, μΩ·m	0,85 (20 ℃) (68 °F)
	0,90 (100 ℃) (212 °F)
	0,95 (200 ℃) (392 °F)
	1,0 (300 ℃) (572 °F)
Specific heat capacity, J/(kg·K)	470 (20 ℃) (68 °F)
	500 (100 ℃) (212 °F)
	530 (200 ℃) (392 °F)
	560 (300 ℃) (572 °F)
Thermal conductivity, (W/m·K)	15,0 (20 ℃) (68 °F)
	15,9 (100 ℃) (212 °F)
	17,0 (200 ℃) (392 °F)
	18,0 (300 ℃) (572 °F)
Modulus of elasticity, Gpa	190 (20 ℃) (68 °F)
	180 (100 ℃) (212 °F)
	175 (200 ℃) (392 °F)
	171 (300 ℃) (572 °F)
Mean coefficient of thermal expansion, (10-6/K)	13,5 (20-100 ℃) (68 °F – 212 °F)
	14.0 (20-200 ℃) (68 °F – 392 °F)
	14.6 (20-300 ℃) (68 °F – 572 °F)

Mechanical Properties

Duplex 2205 stainless steel mechanical properties at room temperature in various conditions and resistance to intergranular corrosion, including yield strength, tensile strength, and hardness, etc.

			Mechanical properties
Country (Region)	Standard	AISI Type (UNS)	0.2% proof strength, MPa (ksi), ≥	Tensile strength, MPa (ksi), ≥	Elongation in 50mm (2 in.), %, ≥	Brinell Hardness (HBW), ≤	Rockwell Hardness (HRC), ≥	Condition & Finish
US	ASTM A276/A276M	2205 (UNS S32205, UNS S31803)	450 (65)	655 (95)	25	290	–	Annealed, hot-finished or cold-finished
	ASTM A240/A240M		450 (65)	655 (95)	25	293	31	–