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Shanghai Steelwell superalloy Co.,Ltd
Tel: 86-21-39949928
Fax:86-21-39950219
Cell phone: 86-137 6167 4288
Email: sales@250fm.com
      annie2278@hotmail.com
Address:Room 513,No.16,Lane 155,Xinyuan road, Jiading district,Shanghai, China
 
High temperature alloy
 
alloy254Mo
 

Description
254 SMO stainless steel bar, also known as UNS S31254, was originally developed for use in seawater and other aggressive chloride-bearing environments. This grade is considered a very high end austenitic stainless steel; UNS S31254 is often referred to as a “6% Moly” grade due to the molybdenum content; the 6% Moly family has the ability to withstand high temperatures and maintain strength under volatile conditions.
Chemical composition
Alloy
element
C
Si
Mn
S
P
Ni
Cr
Mo
Fe
Cu
N
254 SMO
Min
 
 
 
 
 
17.5
19.5
6.0
 
0.5
0.18
Max
0.02
0.8
1.0
0.01
0.03
18.5
20.5
6.5
balance
1.0
0.22
Mechanical properties
Aolly Status
Tensile strength
Rm Mpa     min
Yield strength
R P 0. 2 Mpa min
Elongation
A 5  min%
Reduction of area min, %
annealed
650
300
35
50
Physical properties
Density
g/cm3
7.94
Standard
ASTM A182 (F44)
ASTM A240
ASTM A249
ASTM A269
ASTM A312
ASTM A469
ASTM A813ASTM
A814UNS S31254

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Fax:86-21-39950219 Address:Room 513,No.16,Lane 155,Xinyuan road,Jiading district,Shanghai, China

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