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Stainless steel 321 Welding Neck Flange to Philippines

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Stainless steel 321 is a standard austenitic 18/8 chromium nickel alloy with the addition of Titanium,  the titanium stabilises the material removing its susceptibility to the effects of intergranular corrosion. SS 321 is therefore the stainless steel material of choice for applications in working environments up to 900° C.

Chemical Composition of Stainless steel 321

UNS No S32100
EN 1.4541
AISI 321
Carbon (C) 0.08
Silicon (Si) 0.75
Manganese (Mn) 2.00
Phosphorus (P) 0.045
Sulphur (S) 0.030
Chromium (Cr) 17.00 – 19.00
Nickel (Ni) 9.00 – 12.00
Other Ti:5x(C+N)/0.70

Mechanical Properties of Type 321 Stainless steel

Proof Stress 0.2% (MPa) 205
Tensile strength (MPa) 515
Elongation A5 (%) 40
Hardness HB: 217
HRB: 95

Stainless steel 321 Physical Properties

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) Electrical Resistivity (nΩ.m)
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

HT PIPE is supplier and manufactuter of Stainless steel Flanges, we supply a wide range of steel flanges: wn flangessw flanges, so flanges, lwn flanges, threaded flanges, blind flanges, etc. If you have inquiry, pls contact us!