7*1,6*12,7*7,7*19,17*39, etc., stainless steel wire, stainless steel bar, stainless steel pipe, stainless steel plate are more expensive than the same material. The most expensive is 7*7 shares. Chemistry Component % C: ≤ 0.07 Si : ≤ 1.0 Mn : ≤ 2.0 Cr : 17.0 to 19.0 Ni : 8.0 to 11.0 Mo : Cu : Ti : S : ≤ 0.03 P : ≤ 0.035 Physical property yield strength (N/mm2) ≥ 205 Pull strength ≥ 520 Elongation (%) ≥ 40 Hardness HB ≤ 187 HRB ≤ 90 HV ≤ 200 Density 7.93 g·cm-3 Specific heat c (20 ° C) 0.502 J · (g · C) -1 Thermal conductivity λ / W(m·°C)-1 (at the following temperature/°C) 20 100 500 12.1 16.3 21.4 Linear expansion coefficient α/(10-6/°C) (between the following temperatures/°C) 20～100 20～200 20～300 20～400 16.0 16.8 17.5 18.1 Resistivity 0.73 Ω·mm2·m-1 Melting point 1398～1420°C
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