Sachiya Steel International Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 321 Tube to Union similar to parker and Swagelok, 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.
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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 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
Stainless Steel 321/321H Tube To Union Test Certificates
We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.
• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc
Material Testing
We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
Documentation
• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)
Stainless Steel 321 Tube to Union
Sachiya Steel International Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 321 Tube to Union similar to parker and Swagelok, 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.
Product Brand: Sachiya Steel International
Product In-Stock: InStock
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