304 stainless steel round tube/pipe is generally stainless steel material with excellent stainless corrosion resistance and better resistance to intergranular corrosion.
304 stainless steel is a general stainless steel material, rust resistance than the 200 series of stainless steel materials to be stronger. High-temperature resistance is also better, the general use of temperature limit is less than 650 ℃.
304 stainless steel has excellent stainless corrosion resistance and good resistance to intergranular corrosion properties.
For oxidizing acids, it is concluded in the experiment: concentration ≤ 65% of the boiling temperature below the nitric acid, 304 stainless steel has a strong resistance to corrosion. To alkali solutions and most organic and inorganic acids also have good corrosion resistance.
304 stainless steel round tube/pipe is a variant of 304 stainless steel with lower carbon content, used in applications where welding is required. The lower carbon content minimizes the precipitation of carbide in the heat-affected zone near the weld seam, which can lead to intergranular corrosion (weld erosion) of stainless steel in some environments.
Analysis of 304 stainless steel chemical composition %
AISI/ ASTM stainless steel 304 pipe/tube
C：≤0.08
Si ：≤1.0
Mn ：≤2.0
Cr ：18.0～20.0
Ni ：8.0～10.0
S ：≤0.03
P ：≤0.035
SUS stainless steel 304 pipe/tube
C：≤0.05
Si ：≤1.0
Mn ：≤2.0
Cr ：18.0～20.0
Ni ：8.0～10.0
S ：≤0.03
P ：≤0.035
Tensile strength ≥ 520
Elongations ≥ 40%
Yield strength ≥ 205N/mm2
Hardness HB ≤ 187 HRB ≤ 90 HV ≤ 200
Density 7.93 g-cm-3
Specific heat c(20℃)0.502 J-(g-C)-1
Thermal conductivity λ/W(m-℃)-1 (at the following temperature/℃)
20°C is 12.1
100°C is 16.3
500°C is 21.4
Coefficient of linear expansion α/(10-6/°C) (between the following temperatures/°C)
20 to 100°C is 16.0
20 to 200°C is 16.8
20 to 300°C is 17.5
20 to 400°C is 18.1
Resistivity 0.73 Ω-mm2-m-1
Melting point 1398～1420℃
Φ3 Φ4 Φ5 Φ6 Φ7 Φ8 Φ9 Φ9.5 Φ10 Φ11 Φ12 Φ12.7 Φ14 Φ15 Φ15.9 Φ18 Φ19.1 Φ20 Φ21 Φ22.2 Φ23 Φ25.4 Φ28.6 Φ29 Φ30 Φ31.8 Φ32 Φ35 Φ38.1 Φ41.28 Φ42.16 Φ44.5 Φ45 Φ47 Φ48 Φ50 Φ50.8 Φ54 Φ57 Φ60.3 Φ63.5 Φ70 Φ73 Φ76.2 Φ80 Φ88.9 Φ101.6 Φ108 Φ114.3 Φ127 Φ133 Φ141 Φ152.4 Φ159 Φ168 Φ219 Φ273 Φ323.85
304 stainless steel round pipes/tubes price $500-1000/ton