ASTM A358 TP 321 Stainless Steel EFW Pipes, 321 Stainless Steel Seamless Manufacturer
SS JIS SUS 321 Pipes, Stainless Steel 321H Pipes Exporters, Stainless Steel WERKSTOFF NR. 1.4541 Pipe
Stainless 321 is chromium-nickel steel which was developed with improved intergranular-corrosion resistance. Stainless 321 is resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, and a wide variety of inorganic chemicals. Type 321, SS JIS SUS 321 Pipes, 321H Stainless Steel Seamless Pipes should be used for applications requiring heating between 800 °F and 1650 °F such as aircraft collector rings, expansion joints, exhaust manifolds, and high temperature chemical process equipment.
Stainless Steel 321 Pipe Suppliers
Stainless Steel 321 Seamless Pipe
SS 321H Welded Pipe
We are leading manufacturer, exporter & suppliers of high quality ASTM A312 TP 321 Stainless Steel Pipes, ASTM A358 TP 321 Stainless Steel EFW Pipes, Welded Pipes, Seamless Pipes. These Stainless Steel 321H ERW Pipes has extensive use in aircraft parts, such as exhaust systems where operating temperatures are higher than 800 ° F. These pipes are smoothly processed by our highly veteran experts by using basic material according to the market prevalent norms. We manufacture in SS UNS S32109 Welded 321 Pipe, Suppliers of ASTM A312 TP 321 Stainless Steel Seamless Pipes,321 SS Hollow Pipe, Stainless Steel WERKSTOFF NR. 1.4541 Pipe. We make use of the latest machines and the best technology to fabricate the pipes made available by us.
Stainless Steel 321H Pipes to 1750 ° F – 2050 ° F (954 ° C – 1121 ° C), then water quench or air cool. Our Stainless Steel 321 Seamless Pipes can be stress-relief annealed within the sensitization temperature range 450 Deg C – 800 Deg C without carbide precipitation occurring, thus avoiding the possibility of inter-granular corrosion. Our Stainless Steel 321 Round Pipes has slightly less corrosion resistance to atmospheric conditions than Alloy 302 or Alloy 304 in the annealed condition. These Stainless Steel 321H Square Pipes, ASTM A312 TP321 Stainless Steel Seamless Pipes has equipment and storage units for Food processing and Aerospace applications. The overall characteristics of these Stainless Steel 321H Welded Pipes make it an excellent, relatively low cost choice for many applications. Our Stainless Steel 321 EFW Pipes is generally considered to have comparable weldability to Stainless Steel 304 and Stainless Steel 304L with the main difference being the titanium addition which reduces or prevents carbide precipitation during welding.
TABLE OF CONTENT
SS DIN 1.4878 Rectangular Welded Pipes Specification
| Specifications | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790 |
|---|---|
| Dimensions | ASTM, ASME and API |
| Size | 1/8″NB TO 30″NB IN |
| 321 Pipes & Tubes | 1/2" NB - 24" NB |
| EFW 321H Pipes & Tubes | 6" NB - 100" NB |
| ERW 321 Pipes & Tubes | 1/2" NB - 24" NB |
| Specialized in | Large Diameter Size |
| Thickness | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pitdes |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
ASTM A312 SS Seamless Pipes Chemical Composition
| Grade | Ni | C | Mn | P | S | Si | Cr | Mo | N | TI | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 321 | Max | 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.0 | 3 – 4 | 0.10 max | 0.70 |
| Min | 9.00 | - | - | - | - | - | 17.0 | - | - | 5(C+N) | |
| 321H | Max | 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.75 | 19.0 | 3 – 4 | 0.10 | 0.70 |
| Min | 9.00 | 0.04 | - | - | - | - | 17.0 | - | - | 4(C+N) | |
TP 321H Stainless Steel Pipes Mechanical Properties
| 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 |
| 321H | 515 | 205 | 40% | 95 | 217 |
| Grade | Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec 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 |
TP 321 Stainless Steel Pipes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| SS 321 | 1.4541 | S32100 |
| SS 321H | 1.4878 | S32109 |
ASTM A312 SS 321 Round Pipes Grade Specification
| 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 |
| 321H | S32109 | 321S51 | - | 1.4878 | X6CrNiTi18-10 | - | SUS 321H |
Types Of Stainless Steel 321/321H Pipes
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