Sachiya Steel International Is one Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 317L Tube to Union Fittings similar to parker and Swagelok, which is prone to inter – granular corrosion in the as – welded state. The “L” in the name of Stainless Steel 317L Tube Fittings refers to the “low carbon content”, which can be used in the welded form without being susceptible to inter – granular corrosion. When exposed to temperatures ranging from 800 degrees Fahrenheit – 1500 degrees Fahrenheit, Stainless Steel 317L Compression Fittings is prone to carbon precipitation.
After the welding process, annealing will help improve the resistance of Stainless Steel 317L Union Fittings to corrosion. Stainless Steel 317L Ferrule Fittings has the same composition as regular 317L Stainless Steel, with the exception of the carbon content, which is below 0.03 %. Physical properties and corrosion resistance are excellent; on the other hand, Stainless Steel 317L Double Ferrule Fittings provides protection against inter – granular corrosion in the welded condition.
When in excellent temperatures, Stainless Steel 317L Union Tube Fittings also can resist inter – granular corrosion. It is advisable to apply 317L Stainless Steel Union Fittings when presence in the carbide precipitation range cannot be avoided or when annealing after the welding process is impractical. When exposed to the carbide precipitation range for too long, 317L Stainless Steel Tube Fittings may become damaged and inter – granular attack may be more likely to take place.
Stainless Steel 317L 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 317L Tube To Union Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| 317L | 0.035 max | 2 max | 1 max | 0.045 max | 0.030 max | 18 – 20 | 3 – 4 | 11 – 15 | 57.89 min |
Stainless Steel 317L Tube To Union Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 317L | 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 317L Stainless Steel Ferrule Fitting Tube To Union
| Grade | UNS | WERKSTOFF NR | JIS | EN |
| 317L | S31703 | 1.4438 | SUS 317L | X2CrNiMo18-15-4 |
SS 317L 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 317L 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)