Standards

Typical Chemical Composition (in weight %)

Description

It is often substituted for 316 stainless due to its superior weld ability with no appreciable difference in price or properties. It combines good availability in all forms and size ranges with great strength and corrosion resistance.

Applications

Components used in marine environments and chemical equipment. Suitable for any application where 316 stainless is used and stronger welds are desirable.

Physical properties (average values) at ambient temperature

Modulus of elasticity [103 x N/mm2]: 200, 186 (200℃), 172 (400℃)

Density [g/cm3]: 8.0

Thermal conductivity [W/m.K]: 15.0 Electric resistivity [Ohm mm2/m]: 0.75 Specific heat capacity[J/g.K]: 0.500 Magnetisable: No

Quenching

Harden from a temperature of 1020-1120℃ followed by water or air (sufficiently fast) quenching. Structure is austenite.

Mechanical properties at at ambient temperature

Condition: Solution-Annealed condition

For diameter d<=160 mm
0.2% proof stress: 200 N/mm2

1% proof stress: 225 N/mm2
Tensile strength: 500-700 N/mm2
Elongation: 40% (Longit.)

Charpy notch (ISO-V): 100 J (Longit.)

For diameter 160<d<=250 mm
0.2% proof stress: 200 N/mm2

1% proof stress: 225 N/mm2
Tensile strength: 500-700 N/mm2
Elongation: 30% (Transv.)

Disclaimer: the information and data presented herein are typical values for reference and are not intended as warranties to readers.