Sachiya Steel International is one of the Leading Manufacturer And Exporter Of High Quality Stainless Steel 317L Nuts And Bolts, which is produced in an electric arc furnace where carbon electrodes contact recycled stainless scrap and various alloys of chromium. A current is passed through the electrode of Stainless Steel 317L Hex Head Bolts and the temperature increases to a point where the scrap and alloys melt. When specifying, Stainless Steel 317L Hex Head Nuts can be used but it is important to also list the specific Unified Numbering System (UNS) designation for the specific alloy, which identifies the specific chemistry that is desired.
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Within the ASTM standards and industry association and company literature, Stainless Steel 317L Square Bolts are identified by UNS number and, where one exists, the common name. Stainless Steel 317L Square Nuts from the electric furnace is then transferred into an Argon Oxygen De – carburization vessel, where the carbon levels are reduced and the final alloy additions are made to achieve the exact chemistry.
Stainless Steel 317L Eye Bolts receive a final annealing (a heat treatment that softens the structure) and pickling (an acid wash that removes the furnace scale from annealing and helps promote the passive surface film that naturally occurs). Stainless Steel 317L Eye Nuts exhibit excellent corrosion resistance and molybdenum is added to some grades for additional resistance to chlorides. In Stainless Steel 317L U-Bolts, nitrogen maybe added to improve strength and corrosion resistance.
SS 317L Bolt/Nut Specifications
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| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
317L Stainless Steel Bolt/Nut Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 317L | min. | – | – | – | – | – | 18.0 | 3.00 | 11.0 | – |
| max. | 0.03 | 2.0 | 0.75 | 0.040 | 0.03 | 20.0 | 4.00 | 15.0 | – | |
Stainless Steel 317L Bolt/Nut 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 | ||||
| 317L | 515 | 205 | 35 | 95 | 217 |
Stainless Steel 317L Bolt/Nut Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 317L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Equivalent Grades for 317L Stainless Steel Bolt/Nut
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 317L | S31703 | – | – | 1.4438 | – | – | – |
SS 317L Bolt/Nut 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
317L Steel Bolt/Nut 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 317L Nuts
Sachiya Steel International is one of the Leading Manufacturer And Exporter Of High Quality Stainless Steel 317L Nuts And Bolts, which is produced in an electric arc furnace where carbon electrodes contact recycled stainless scrap and various alloys of chromium. A current is passed through the electrode of Stainless Steel 317L Hex Head Bolts and the temperature increases to a point where the scrap and alloys melt.
Product Brand: Sachiya Steel International
Product In-Stock: InStock
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