Stainless Steel Grade AISI 302B

AISI 302B is an austenitic chromium-nickel stainless steel that has a resistance to scale at elevated temperatures that exceeds AISI 302 steel. It is used exclusively for parts exposed to high temperatures.

Mechanical properties

Table: mechanical properties of stainless steel grade AISI 302B
Tensile strength, min., MPa	520
Yield strength, 0.2%, MPa	205
Relative elongation, min., %	40
Hardness, HB type	218

Physical properties

Steel density (weight) AISI 302B: 7.68 g/cm³.
Magnetic properties: non-magnetic.

Table: chemical composition AISI 302B
Chemical composition of steel grade AISI 302B
C	Si	Mn	P	S	Cr	Ni	N	Fe
<0,15	2,0-3,0	<2,0	<0,045	<0,03	17,0-19,0	8,0-10,0	<0,1	Other

AISI 302B stainless steel consists of (in mass percentage) 0.15% carbon (C), 2.00% manganese (Mn), 2.0-3.0% silicon (Si), 17.0-19.0% chromium (Cr), 8.0-10.0% nickel (Ni), 0.045% phosphorus (P), 0.03% sulfur (S) and the base metal iron (Fe).

Stainless steel AISI 302B is known for its corrosion resistance, allowing it to be used in various environments. It is suitable for forming forged products and has received recognition from consumers for its corresponding properties. This grade of metal is usually used in piping systems. Stainless steel AISI 302 B is also used for the production of sheet metal, wire and fasteners, as its chemical composition includes 17.0 - 19.0% chromium (Cr), which provides good corrosion resistance, and 8.0 - 10.0% nickel (Ni), which increases its ductility and toughness.