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Incoloy Alloy 31 BAR PIPE Sheet Bolt Flange

Common Trade Names: Incoloy 031, Alloy 31 , UNS N08031 , W.Nr 1.4562

 Alloy31 is one kind of azotic contenting iron nichrome molybdenum alloy, the performance is situated between the super austenite stainless steel and the nickel base alloy, The presence of copper increases its resistance to sulfuric acid. The alloy is used in the chemical and petrochemical processing industry . Alloy tubes are cold worked to high strength levels for downhole service in moderately corrosive deep sour gas wells.

Alloy 31 Chemical Composition

Alloy

%

Ni

Cr

Fe

Mo

N

C

Mn

Si

S

Cu

P

Alloy31

Min.

30.0

26.0

Bal

6.0

0.15

 

 

 

 

1.0

 

Max.

32.0

28.0

7.0

0.2

0.015

2.0

0.3

0.01

1.4

0.02

Alloy 31 Physical Properties
Density 8.10 g/cm³
Melting point 1350-1370 ℃

 

Alloy 31 Mechanical Properties
Status Tensile strength 
Rm N/mm²
Yield strength 
Rp 0. 2N/mm²
Elongation 
As %
Brinell hardness HB
Solution treatment 650 350 35 ≤363

 

Alloy 31  Standards and Specifications

ASTM B 668, B709, B 829,ASME SB-668, SB-709, SB-829

Alloy 31 Available Products in Sekonic Metals

Alloy 31 bars & Rods

Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts

Alloy 31 welding wire & Spring wire

Supply in welding wire and spring wire in coil form and cut length.

Alloy 31 Forging Ring

Forging Ring or gasket,size can be customized with bright surface and precision tolerance

Alloy 31 sheet & plate

Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm  to 100mm.

Alloy 31 seamless tube & Welded pipe

Standards size and  customized dimension can be produced by us with small tolerance

Alloy 31 Flange

Various Kind of flanges and  customized drawing can be produced by us with Precision tolerance

Alloy 31 strip & coil

Soft condition and hard condition with AB bright surface, width up to 1000mm

Alloy 31 Fasetners

Alloy 31  materials  in forms of Bolts,screws,flanges and other fasterners, according to clients specification.

Why Alloy 31 ?

Alloy31 is one kind of azotic contenting iron nichrome molybdenum alloy, the performance is situated between the super austenite stainless steel and the nickel base alloy

1.workability

2.High tensile strength,endurance strength,creep strength and rupture strength at 700℃.

3.High inoxidability at1000℃.

4.Steady mechanical performance in the low temperature.

Alloy 31 Application field:

Alloy 31 suit applies in chemistry and the petroleum chemical industry, the environment project and the oil,gas,and so on industrial fields..