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321 stainless steel pipes and tubes

Hi-Tech Metal & Tubes is Dealer & Distributor of 321 Stainless Steel Seamless Pipes for NSSMC (Nippon Steel & Sumitomo Metal Corporation)and Kuze Stainless Steel. Dealer & distributor of Super Duplex and Duplex Stainless Pipes for Salzgitter Mannesmann

Grade DIN UNS SUS Inox
SS 321 1.4541 S32100 321 321
  • Specifications –ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
  • Size – Seamless 321 Pipes & Tubes – 1/2″ NB -24″ NB
  • ERW 321 Pipes & Tubes – 1/2″ NB – 24″ NB
  • EFW 321 Pipes & Tubes – 6″ NB – 100″ NB
  • Wall Thickness – Schedule 5S – Schedule XXS.
Dimensions : ASTM, ASME and API
Schedule : SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length : Single Random, Double Random & Cut Length.
Form : Round, Square, Rectangular, Hydraulic Etc.

Composition ranges for stainless steel 321 grade

Grade C Mn Si P S Cr Mo Ni N Other
321 min.max –0.08 2.00 0.75 0.045 0.030 17.019.0 9.012.0 0.10 Ti=5(C+N)0.70

Mechanical properties of stainless steel 321 grade

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

Physical Properties of Stainless Steel 321 Grade

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (n.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

Grade specifications for stainless steel 321 grade

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321

 

STANDARD UNS WERKSTOFF NR.
SS 321 S32100 1.4541