Factors Affecting Impact Toughness in Stabilized Intermediate Purity 21Cr Ferritic Stainless Steels and Their Simulated Heat-Affected Zones

Grain growth during welding and the level of impact toughness in thermally simulated high-temperature heat-affected zones were determined for a series of AOD-level laboratory melted 21% chromium ferritic stainless steels. The effects of niobium and titanium stabilizing elements on microstructure were evaluated by optical and scanning electron microscopy. Overall, grain growth was only slightly affected by the stabilizing element ratio. On a weight percent basis, niobium was the most effective for restricting the grain growth in the heat-affected zone either alone or in the presence of a small amount of titanium. The predominantly niobium-stabilized heats also had the highest impact toughness in both air-cooled and water-quenched conditions, differences in transition temperatures being up to 55 °C. However, all the simulated heat-affected zones fit into a narrow ductile-to-brittle transition temperature band width of 30 °C, even including variations in heat input. This was attributed to intense grain boundary precipitation, which occurred even with a low heat input.

Download Full-text

J & L TYPE 409/409 HP

Alloy Digest ◽

10.31399/asm.ad.ss0743 ◽

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.

Download Full-text

SUPERMET 2205

Alloy Digest ◽

10.31399/asm.ad.ss0903 ◽

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.

Download Full-text

MAGIVAL MG2

Alloy Digest ◽

10.31399/asm.ad.ss1161 ◽

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.

Download Full-text