The alloy lean duplex 2304 has similar corrosion resistance properties to 316L. Furthermore, its mechanical properties i.e. yield strength, are twice those of 304/316 austenitic grades. This allows the designer to save weight, particularly for properly designed pressure vessel applications.

Chemical Analysis

 

Typical values (weight %)
C	Cr	Ni	Mo	N	Others
0.020	23	4	0.2	0.1	S = 0.001
PREN (‰Cr+3.3‰Mo+16‰N) ≥ 24

Mechanical Properties

Tensile properties (minimum values)
°C	Rp 0.2 MPa	Rp 1.0 MPa	Rm MPa	°F	YS 0.2‰ KSI	YS 1.0‰ KSI	UTS KSI	Elongation ‰
20	400	440	600	68	58	64	87	25
100	330	365	570	212	48	53	83	25
200	280	310	530	392	41	45	77	20
30	230	260	490	572	33	38	71	20

Density: 7,800 kg/ – 0.28 lb/in3
Interval temper °C	Thermal expansion αx10-6K-1	°C	Resistivity (µΩ cm)	Thermal conductivity (W.m-1.K-1)	Specific heat (J.kg-1.K-1)	Young modulus E (GPa)	Shear modulus G (GPa)
20-100	13	20	80	17	450	200	75
		100	92	18	500	190	73
20-200	13.5	200	100	19	530	160	70
20-300	14	300	105	20	560	170	67

In what form is Lean Duplex S32304 available at ISHWAR STEEL CORPORATION?

• Bar
• Wire
• Sheet
• Plate
• Forgings
• Pipe
• Flanges