Surface finish	Characteristics and application
NO.2B	The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties,No2B could nearly satisfy compreh ensive uses.
NO.1	The surface is finished by heat treatment and pickling or processes corresponding thereto after hot rolling.
NO.4	Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria,but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc.
HL	Polished with abrasive belt of grit #150#320 on the NO.4 finish and has continuous streaks,mainly used as buildingsornaments elevators,door of building,frontal plate etc.
BA	Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror,kitchen apparatus,ornament etc.
8K	The product have excellent brightness and prefer reflexivity can to be the mirror.

Tensile strength σb (MPa	≥ 520	Specific heat capacity(0 ~ 100 ºC, KJ kgK)	0.50
Conditions yield strength	σ0.2 (MPa) ≥ 205	Thermal conductivity (W m. K)	(100 ºC), 16.3 21.5 (500 ºC)
Elongation δ5 (%)	≥40	The linear expansion coefficient k.	(0 ~ 100 ºC), 17.2 (0 ~ 500 ºC) of 18.4
Section shrinkage ψ (%)	≥ 60	Resistivity (20 ºC, 10 Ω m.)	0.73
Hardness	≤ 187HB; ≤ 90HRB; ≤ 200HV	The longitudinal elastic modulus (20 ºC, KN/mm)	193
Melting point (ºC)	1398 ~ 1454	Specific heat capacity	0.50

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Inox 304 Sheet ASTM A240 2b 304 Stainless Steel Sheet