Development of Powder Metallurgy High Nitrogen Stainless Steel

2010 ◽  
Vol 638-642 ◽  
pp. 1811-1816 ◽  
Author(s):  
Chun Jiang Kuang ◽  
H. Zhong ◽  
D. Chen ◽  
X. Kuang ◽  
Q. Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Nitrogen Content ◽  
Stainless Steels ◽  
High Strength ◽  
Gas Atomization ◽  
High Nitrogen ◽  
Annealed State ◽  
Nitrogen Alloying ◽  
High Nitrogen Stainless Steel

Nitrogen alloying in steel may greatly increase the strength and corrosion resistance of the material. This paper introduced some research results of high nitrogen stainless steel (HNS) investigation via PM process. Nickel free high nitrogen stainless steels (17Cr12Mn2MoN) and superaustenitic high nitrogen stainless steels (28Cr6Mn2/6Mo10/20NiN) were investigated via gas atomization and HIP processes. Nitrogen alloying behavior during atomization and consolidation processes was investigated. Powders with nitrogen content up to 1% were manufactured by gas atomization process. Nickel free high nitrogen stainless steels with nitrogen up to 0.6% exhibits high strength and ductility at as-HIPed and solution annealed state, and superaustenitic HNS with nitrogen content up to 1% showed very high strength and good ductility at solution annealed state, with b at 1100 MPa, s at 810 MPa and elongation of 43%. PM HNS exhibited excellent corrosion resistance.

CRUCIBLE 174 SXR

Alloy Digest ◽  
2009 ◽  
Vol 58 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Stainless Steels ◽  
Precipitation Hardening ◽  
High Strength ◽  
Heat Treating ◽  
Martensitic Stainless Steels ◽  
Excellent Corrosion Resistance

Abstract Crucible 174 SXR is a premium-quality precipitation-hardening stainless steel designed for use as rifle barrels. It is a modification of Crucible’s 17Cr-4Ni that offers substantially improved machinability without sacrificing toughness. Its excellent corrosion resistance approaches that of a 300 series austenitic stainless steel, while its high strength is characteristic of 400 series martensitic stainless steels. At similar hardness levels, Crucible 174 SXR offers greater toughness than either the 410 or 416 stainless steels which are commonly used for rifle barrels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming and heat treating. Filing Code: SS-1034. Producer or source: Crucible Service Centers.

Effect of grain ultra-refinement on corrosion behavior of ultra-high strength high nitrogen stainless steel

2020 ◽  
Vol 174 ◽  
pp. 108847
Author(s):  
H. Zhang ◽  
P. Xue ◽  
L.H. Wu ◽  
Q.N. Song ◽  
D. Wang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
High Strength ◽  
High Nitrogen ◽  
High Nitrogen Stainless Steel

Microstructure and Corrosion Resistance of Friction Stir Welded High Nitrogen Stainless Steel Joint

CORROSION ◽  
10.5006/2990 ◽  
2019 ◽  
Vol 75 (7) ◽  
pp. 790-798 ◽  
Author(s):  
H. Zhang ◽  
D. Wang ◽  
P. Xue ◽  
L.H. Wu ◽  
D.R. Ni ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Nitrogen ◽  
Friction Stir ◽  
Steel Joint ◽  
High Nitrogen Stainless Steel

OUTOKUMPU FORTA H500

Alloy Digest ◽  
2018 ◽  
Vol 67 (2) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Nitrogen Content ◽  
Tensile Properties ◽  
Work Hardening ◽  
Research Centre ◽  
High Nitrogen Content ◽  
High Nitrogen

Abstract Forta H500 is an austenitic stainless steel in which manganese replaces some of the nickel. Its high-nitrogen content adds strength. Grades Forta H800 and H1000 can be derived from the same composition by changing the degree of work hardening. This datasheet provides information on physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-1278. Producer or source: Outokumpu Stainless AB, Avesta Research Centre.

NIPPON/SUMITOMO NF709

Alloy Digest ◽  
2014 ◽  
Vol 63 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Stainless Steels ◽  
High Strength ◽  
Temperature Performance

Abstract Sumitomo NF709 is a high temperature austenitic stainless steel with high strength. It also has better steam and hot chloride alkali oxidation than conventional stainless steels. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming. Filing Code: SS-1180. Producer or source: Sumitomo Metal USA Corporation.

REMANIT 4401

Alloy Digest ◽  
1996 ◽  
Vol 45 (12) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Elevated Temperatures ◽  
Austenitic Stainless Steels ◽  
High Strength ◽  
Heat Treating ◽  
Good Resistance ◽  
Temperature Performance ◽  
Textile Industries

Abstract Remanit 4401 is a chromium-nickel-molybdenum austenitic stainless steel. The molybdenum (2 to 2.5%) gives it resistance to pitting corrosion, more than most of the standard grades of austenitic stainless steels. This extra measure of corrosion resistance makes this grade particularly suitable for uses involving severe corrosive conditions. The alloy has high strength and good resistance to creep at elevated temperatures. Its many applications include the nuclear, chemical, food, paper, and textile industries. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: SS-664. Producer or source: Thyssen Stahl AG.

Effects of Surface Active Element on the Biocompatibility of High Nitrogen Stainless Steel

2011 ◽  
Vol 479 ◽  
pp. 1-7
Author(s):  
W.C. Luo ◽  
Y.L. Ke ◽  
Shuang Shii Lian ◽  
F.M. Chu
Keyword(s):  
Stainless Steel ◽  
Nitrogen Content ◽  
Sulfur Content ◽  
Low Cost ◽  
Melting Furnace ◽  
Induction Melting ◽  
High Nitrogen ◽  
Corrosion Properties ◽  
Surface Active Element ◽  
High Nitrogen Stainless Steel

Nickel-free high nitrogen stainless steel has become more important due to its impressive mechanical and corrosion properties. In contrast to high pressure processes, melting plasma in a normal atmosphere is an alternative way of obtaining high nitrogen content at low cost. However, melting in such an atmosphere will bring some surface impurities, like sulfur and oxygen, into the stainless steel through the refractories or the materials themselves. Therefore, this research aims the relationship between the sulfur and nitrogen content, and their influence on biocompatibility. Thermo-Calc is first used to design the composition of Fe-Cr based austenitic nitrogen stainless steel, and melted with different melting techniques, including plasma and an induction melting furnace. The results indicate that the nitrogen content varies with different sulfur content. It is also found that α-Fe (Ferrite) plates are observed near the grain boundaries when the sulfur content reaches a certain level. Besides, the Sulfur content has an obvious influence on the biocompatibility rather than nitrogen contents.

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