Sachiya Steel International Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 321 Hydraulic Fittings, which is a titanium stabilized austenitic chromium – nickel stainless steel. Its resistance to sensitization, coupled with its higher strength at high temperature makes Stainless Steel 321 Hydraulic Fittings suitable in application where SS 304 will become sensitized, or where SS 304L has insufficient hot strength. Titanium acts as a stabilizer because the carbon has more affinity to it than it has to the chromium, thus titanium carbide in Stainless Steel 321H Hydraulic Fittings is formed instead and the chromium is unaffected giving the material optimum corrosion resistance.
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Whilst retaining good strength and corrosion resistance when exposed to high temperatures, our 321 Stainless Steel Hydraulic Fittings like most austenitic grades will also maintain its strength and toughness at sub-zero temperatures. However, long term exposure in these 321H Stainless Steel Hydraulic Fittings to temperatures between 900 ° F – 1500 ° F (482 ° C – 816 ° C) may reduce its overall general corrosion resistance but remains improved compared to un-stabilized grades.
In order to provide optimum resistance in our Alloy 321 Hydraulic Fittings to inter-granular corrosion and to polythionic acid stress corrosion cracking in service temperatures at 1500 ° F -1650 ° F an air cool may be used. These Alloy 321H Hydraulic Fittings is non-heat treatable and non-magnetic in the annealed condition.
Stainless Steel 321/321H Hydraulic Fittings 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 Hydraulic Fittings 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 Hydraulic Fittings 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 Stainless Steel Hydraulic Tube Fittings
| 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 Hydraulic Fittings 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 Hydraulic Tube Fittings 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 Hydraulic Fittings
Sachiya Steel International Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 321 Hydraulic Fittings, which is a titanium stabilized austenitic chromium – nickel stainless steel. Its resistance to sensitization, coupled with its higher strength at high temperature makes Stainless Steel 321 Hydraulic Fittings suitable in application where SS 304 will become sensitized, or where SS 304L has insufficient hot strength. Titanium acts as a stabilizer because the carbon has more affinity to it than it has to the chromium, thus titanium carbide in Stainless Steel 321H Hydraulic Fittings is formed instead and the chromium is unaffected giving the material optimum corrosion resistance.
Product Brand: Sachiya Steel International
Product In-Stock: InStock
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