
Sachiya Steel International is a Leading Manufacture And Exporter For a wide range of Stainless Steel 321 Tube to Union, which has better high temperature properties than 304 or 304L. When comparing the chemical structure of Stainless Steel 321 Compression Fittings against standard austenitic grades such as SS 304 / SS 316 the main separating factor is the Titanium content, which is used as a stabilizing element allowing the material to operate at a higher temperature range. Stainless Steel 321H Compression Fittings should be neglected to mark within the welding seam zone with oleaginous bolts or temperature indicating crayons.
Titanium in Stainless Steel 321 Tube Fittings preferentially reacts with carbon in the steel and prevents precipitation of chromium carbides at the grain boundaries, thus preserving corrosion-resistant properties by preventing depletion of chromium near the grain boundaries during exposure within critical temperature range. Austenitic Stainless Steel 321H Tube Fittings during annealing are heated to fairly high temperatures, typically 1050 Degree C – 1100 Degree C to ensure that all chromium carbides present are dissolved and all of the chromium is taken into solution in the austenite.
Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union | Stainless Steel 321 Tube to Union
Stainless Steel 321 Ferrule Fittings is considered resistant to potable water with up to about 200 mg/L chlorides at ambient temperatures, reducing to about 150 mg/L at 60 °C. Stainless Steel 321H Double Ferrule Fittings resists polythionic acid stress corrosion cracking in hydrocarbon service.
Stainless Steel 321/321H Tube to Union Specifications |
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Specifications | : | ASTM A276 ASME SA 479 |
Tube Size | : | 6mm to 38mm to 1/4″ to 1 1/2″ |
Thread |
: | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
Brass | : | ASTM B16 ASTM B 453 |
Pressure Rating | : | 6000PSI for Stainless Steel, 300/1000/3000PSI for Brass |
SS 321/321H Tube To Union Chemical Composition
Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Stainless Steel 321/321H Tube To Union Mechanical Properties
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 321/321H Stainless Steel Ferrule Fitting Tube To Union
STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
SS 321/321H Tube To Union Application Industries
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
About Us:
Sachiya Steel International are manufacturers & exporters of Pipes,Tubes ,Pipe Fitting, Fasteners.
Sachiya Steel International is an internationally acclaimed Pipes And Tubes manufacturing company that exports to more than 90 countries worldwide. We export our high-quality fasteners in Saudi Arabia, Oman, UAE, Dubai, Kuwait, Qatar, Mexico, USA, Malaysia, Iran and many other countries.
Contact:
D-2, Office no. 3,
Gr. Floor, Bharat Nagar Society,
Grant Road (E), Mumbai - 400007
Tel: +91 9769056007
Email: sales@sachiyasteel.com