WIRE FINISHES

XC - Extra clean bright annealed or bright annealed and cold rolled Grease - Ultra-bright finish (for decorative applications) Soap - Soap is not removed from tempered wire to act as a lubricant.

CORROSION:

Type 321 exhibits excellent resistance to organic chemicals, dyestuffs, and a wide range of inorganic chemicals. It resists nitric acid well and the sulfur acids moderately. Long-time exposure in the 900 -1500°F range may lower its general corrosion resistance, but the grade still shows improved resistance to intergranular corrosion compared to unstabilized grades.

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)	Thermal Conductivity (W/m.K)	Specific Heat 0-100°C (J/kg.K)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

321 Stainless Steel Coil Mechanical and Physical Properties

The mechanical properties of grade 321 Stainless Steel Coils are displayed in the following table.

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Rockwell B (HR B) max	Brinell (HB) max
321	515	205	40	95	217
321H	515	205	40	95	217