Austenitic stainless steel combining strength and resistance to intergranular corrosion

Patent · Tue Apr 18 00:00:00 EDT 1989

OSTI ID:5919761

Cordea, J N; Jasper, J C; Sheth, H V

An austenitic stainless steel is described having a 0.2% yield strength of at least 100 ksi (689 N/mm/sup 2/), a magnetic permeability not greater than 1,004 at 500 oersteds, intergranular corrosion resistance of at least 24 hours measured by ASTM A-262 Practice E and a grain size number of ASTM 6 or finer. The steel consists essentially of, in weight percent, from greater than 0.05% to about 0.10% carbon, greater than 14% to about 18% manganese, about 15% to about 20% chromium, about 1% to about 3.5% nickel, about 0.3% to about 0.55% nitrogen, about 0.1% to about 0.5% vanadium, about 1% maximum copper, about 1% maximum molybdenum, about 1% maximum silicon, about 0.04% maximum phosphorus, about 0.03% maximum sulfur and balance essentially iron.

• Assignee: Baltimore Specialty Steels Corp., Baltimore, MD
• Patent Number(s): US 4822556
• OSTI ID: 5919761
• Resource Relation: Patent File Date: Filed date 26 Feb 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEELS
CHEMICAL COMPOSITION
AUSTENITIC STEELS
CHROMIUM ALLOYS
COPPER COMPOUNDS
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
INTERGRANULAR CORROSION
IRON COMPOUNDS
MAGNETIC PROPERTIES
MANGANESE ALLOYS
MOLYBDENUM COMPOUNDS
NICKEL ALLOYS
NITROGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
SILICON COMPOUNDS
SULFUR COMPOUNDS
VANADIUM COMPOUNDS
YIELD STRENGTH
ALLOYS
CHEMICAL REACTIONS
CORROSION
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
STEELS
TRANSITION ELEMENT COMPOUNDS
360103* - Metals & Alloys- Mechanical Properties
360104 - Metals & Alloys- Physical Properties
360105 - Metals & Alloys- Corrosion & Erosion