Brittleness of high-chromium ferritic stainless steels

1978 ◽  
Vol 20 (11) ◽  
pp. 881-886 ◽  
Author(s):  
A. P. Gulyaev ◽  
A. N. Levanova
Keyword(s):  
Stainless Steels ◽  
Ferritic Stainless Steels ◽  
High Chromium

A High Purity Approach to High Chromium Ferritic Stainless Steels

1975 ◽  
Vol 3 (3) ◽  
pp. 199 ◽  
Author(s):  
SF Etris ◽  
YR Fiorini ◽  
KC Lieb ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Stainless Steels ◽  
High Purity ◽  
Ferritic Stainless Steels ◽  
High Chromium

The Effect of Niobium Carbides and Laves Phase on the Yielding Behaviour of a Stabilized Ferritic Stainless Steel

2014 ◽  
Vol 783-786 ◽  
pp. 807-812 ◽  
Author(s):  
Timo J. Juuti ◽  
Timo Manninen ◽  
L. Pentti Karjalainen ◽  
David A. Porter
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Yield Point ◽  
Ferritic Stainless Steel ◽  
Stainless Steels ◽  
Laves Phase ◽  
Temper Rolling ◽  
Ferritic Stainless Steels ◽  
High Chromium ◽  
The Matrix

High-chromium ferritic stainless steels have been developed for applications such as exhaust systems that require good formability. To improve formability, continuous yielding is preferred. However, in high-chromium ferritic stainless steels an upper yield point is often present as a result of free interstitials and Cottrell atmospheres. The upper yield point can be removed by temper rolling but it would be better to avoid it via a suitable heat treatment. This paper describes how this can be done in the case of a ferritic stainless steel containing 0.011%C, 0.012%N, 18%Cr, 2,1%Mo, 0.33%Nb, 0.15Ti%. Despite the presence of Nb and Ti, which should bind the free carbon and nitrogen as carbides and nitrides, an upper yield point was still observed. Previously it has been suspected that this is due to an intermetallic Laves phase present in this steel depleting the Nb in the matrix so that some carbon remains free. A series of short-term annealing experiments showed that the upper yield point diminishes, when the annealing temperature increases above 550 °C, finally disappearing after a heat treatment at 750 °C. On the basis of Thermo-Calc calculations and EDS analyses, free interstitials in the matrix could be related to depletion of MX or insufficient time to reach the equilibrium state.

J & L TYPE 409/409 HP

Alloy Digest ◽  
1999 ◽  
Vol 48 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Heat Treating ◽  
Automotive Exhaust ◽  
Ferritic Stainless Steels ◽  
Resistance To Oxidation ◽  
Specialty Steel ◽  
Oxidation And Corrosion

Abstract J and L Types 409 HP are ferritic stainless steels with 11% chromium. They exhibit an excellent combination of good formability, economy, and resistance to oxidation and corrosion. It is typically used in automotive exhaust systems. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-743. Producer or source: J & L Specialty Steel Inc.

SUPERMET 2205

Alloy Digest ◽  
2004 ◽  
Vol 53 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Ferritic Stainless Steels ◽  
Nitrogen Levels ◽  
Temperature Performance ◽  
Low Temperature Performance

Abstract Supermet 2205 is a manual metal arc (MMA) electrode with enhanced chromium, molybdenum, and nitrogen levels. It is used for welding standard 22% Cr duplex austenitic/ferritic stainless steels. This datasheet provides information on composition, microstructure, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance as well as joining. Filing Code: SS-903. Producer or source: Metrode Products Ltd.

MAGIVAL MG2

Alloy Digest ◽  
2013 ◽  
Vol 62 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Coercive Force ◽  
Magnetic Permeability ◽  
Stainless Steels ◽  
Heat Treating ◽  
Steel Grade ◽  
High Permeability ◽  
Ferritic Stainless Steels ◽  
Magnetic Applications

Abstract MAGIVAL MG2 is a free machining ferritic stainless steel grade with the same high machinability and corrosion resistance as type 430F, but offering a higher magnetic permeability and lower coercive force than MG1 (Alloy Digest SS-1159, October 2013). Magival is a group of easily workable ferritic stainless steels developed for magnetic applications where high permeability and low coercive force are required. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1161. Producer or source: Valbruna Stainless Steel.

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