SMO 254

ISHWAR STEEL CORPORATION maintains one of the world’s largest 254 SMO Seamless Pipe -pipe & tubes inventories include stainless steels, duplex, super duplex, nickel & mixed alloys, carbon steels and low alloys for energy and industrial applications.

254 SMO (UNS S31254) may offer a cost effective solution to Nickel and Titanium alloys in these environments.

Applications of Alloy 254

Chemical Process Industry: Urea Production, Organic and Fatty Acids, High halide concentrations 
Marine Industry and Shipbuilding: Piping, Pumps, Valves, Heat exchangers 
Oil and Gas Industry: Heat exchangers, Piping, Valves, Pumps 
Pulp and Paper Industry: Bleach plant, vats, drums, press rolls, piping 
Power Industry: Flue gas scrubbers 
Desalination plant: Piping, Condensers

Alloy 254 Features

• High strength compared to 316L and 317L austenitic stainless steels
• Excellent ductility and impact strength at both ambient and sub-zero temperatures
• Non-magnetic
• Higher resistance to abrasion, erosion and cavitation erosion than 316 and 317 stainless
• Listed in MR-01-75 for sour service oilfield applications

Chemical Specification of Alloy 254

Elements	C	Cr	Fe	Mo	Mn	N	Ni	Nb	P	S	Si	V
Minimum		20.5	REMAINDER	1.5	4.0	0.2	11.5	0.1				0.1
Maximum	0.06	23.5		3.0	6.0	0.4	13.5	0.3	0.45	0.3	1.0	0.3

Basic Properties of Alloy 254- Mechanical Properties

0.2% Proof Stress (N/mm2 )[ksi] minimum	300 [43.5]
Ultimate Tensile Strength (N/mm2) [ksi] minimum	650[94.2]
Elongation (%) minimum	35
Hardness (HBN)	270 max
Reduction of Area(%) minimum	50

Physical Properties of Alloy 254

Density (Kg.m-3)	8000
Magnetic Permeability	<1.05
Young’s Modulus (N/mm2)	200 x 103
Specific Heat 20°C (J.Kg-1.°K-1)	500
Electrical resistance, 20°C (µ.O.m)	0.85
Thermal conductivity, 20°C (W.m-1.°K-1)	13.5

In what form is smo 254 available at ISHWAR STEEL CORPORATION?

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