Grade 321 is a brilliant option when using in high temperature environments of up to 900 degree celcius. Stainless steel 321/321H mostly used in manufacturing heat exchangers, pressure vessels, pharmaceuticals and chemical processing equipments. Stainless steel 321 pipes refer to as UNS S32100 and SS 321H pipes is refered to as UNS S32109 and both are available in both seamless and welded form in various sizes. Stainless Steel 321/321H seamless & welded pipes and tubes can be offered in random lengths, varied types and various forms.
Oil refinery equipment, industrial boilers, pressure vessels, chemical and pharmaceutical equipment, heat exchangers, petrochemical refineries, Aerospace – piston engine manifolds, Chemical Processing, Expansion Joints, Food Processing – equipment and storage, Petroleum Refining – polythionic acid service, Waste Treatment – thermal oxidizers
| Standard | 321 - ASTM /ASME A/SA 213 / 249 / 269 / 312 / 358 CL. I to V 321H - ASTM /ASME A/SA 213 / 249/ 269 / 312 / 358 CL. I to V |
|---|---|
| SEAMLESS 321/321H Pipes & Tubes | 1/2" NB - 16" NB |
| ERW 321/321HPipes & Tubes | 1/2" NB - 24" NB |
| Certifications | IBR AND NON IBR |
| EFW 321/321H Pipes & Tubes | 6" NB - 100" NB |
| Schedule | SCH 10 – SCH XXS |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| Type | Seamless / ERW / EFW/ Fabricated / LSAW Pipes |
| End | Plain End, Beveled End, Threaded |
| % | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 321 | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
| 321H | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
min:0.04 max:0.10 |
min:18.0 max:20.0 |
max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
| Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
|---|---|---|---|---|
| 321/321H | 75 | 30 | 40 | 217 |
| Denstiy lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
Vision Alloys exports Stainless Steel 321/321H Pipes & Tubes to countries like Saudi Arabia, United Arab Emirates, Singapore, Malaysia, Germany, Iran, United Kingdom, Italy, Israel, Russia, United States Of America, South Africa, Kenya, Nigeria, Phillipines.
