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ALLOY 254 STAINLESS STEEL

Classification :

Alloy 254, which is also found under UNS S31254, is a super austenitic stainless steel that is well known for its outstanding resistance to pitting, crevice corrosion, stress cracking, and fatigue corrosion.
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Keywords:

Stainless Steel Plate

Product Information

Alloy 254 SMO is a very high end, molybdenum and nitrogen alloyed super austenitic stainless steel with low carbon content. It demonstrates outstanding resistance to pitting, crevice corrosion stress cracking, and corrosion fatigue uniform corrosion. Alloy 254 SMO is substantially stronger than the common austenitic grades, with strength nearly twice that of 300 series stainless steel. It is also characterized by high ductility and impact strength. With high levels of chromium, molybdenum, and nitrogen, Alloy 254 SMO is frequently used in high chloride environments, such as brackish water, seawater, pulp mill bleach plants, and other chloride process streams. In some applications it has even been found to be a more cost effective substitute for high nickel and titanium alloys.
 

Technical data

Chemical Properties

% C Cr Mn Mo N Ni P Si S
254 SMO 0.02 max min: 19.5 
max:20.0
1.00 max min: 6.0 
max: 6.5
min: 0.18 
max: 0.20
min: 17.5 
max: 18.0
0.03 max 0.80 max 1.01 max

 

Mechanical Properties

Grade Tensile Strength ksi (MPa) min Yield Strength 0.2%
Offset ksi (MPa) min
Elongation -
% in
50 mm (min.)
Hardness
(Brinell) MAX
Hardness
(Rockwell B) MAX
254 SMO Sheet & Strip 100 (690) 45 (310) 35 223 96
254 SMO Plate 95 (655) 45 (310) 35 223 96

 

254SMo

Standard

Sheet/Plate

Round bar/Wire

Pipe

Tube

ASTM A240

ASTM A276

ASTM A479

ASTM A269

ASTM A213

ASTM A312

ASTM A249

ASTM A269

ASTM A312

ASTM A358

ASTM A409

 

254 SMO is used in the following applications:

1)Equipment for handling of seawater, such as, seawater cooling, cooling water pipes, ballast water systems, firefighting systems etc.

2) Hydraulic and instrumention tubing

3) Equipment in pulp bleaching plants

4) Components in gas cleaning systems

5) Tanks and pipelines for chemicals with high halide contents

warehouse storage

The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

 

 

Packing and shipping

Our main products are: carbon steel plate, carbon steel pipe, carbon steel coil, stainless steel plate, stainless steel coil, stainless steel profile, galvanized plate, galvanized coil, color coated steel coil, ppgi/ppgl and a wide range of high quality steel products. 

 

 

Customer visit

Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

 

 

Cooperation Case

 Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

 

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