Sachiya Steel International Is One Of The Leading Manufacturer And Exporter Of High Quality Stainless Steel 446 Hydraulic Fittings, which is designed specifically to withstand sulphuric acid. Stainless Steel 446 Hydraulic Type Fittings develops a tightly adherent oxide scale which resists spalling even under severe thermal cycling. Stainless Steel 446 Forged Hydraulic Fittings has good high temperature strength, and retains its ductility after long service exposure. SS 446 Hydraulic Fittings has good hot corrosion resistance under oxidizing conditions. Alloy 446 Hydraulic Fittings is not suggested for use in strongly reducing, Sulphur bearing environments.
For maximum oxidation resistance, Grade 446 Hydraulic Fittings should be welded with matching composition of alloy GTAW wire. The weld fillers developed for Type 446 Hydraulic Fittings can also provide a weld which is stronger and more oxidation resistant than the alloy base metal. 446 Stainless Steel Hydraulic Fittings is more difficult to machine than SS 304, where its machinability rating is 15 % – 21 % relative to steel.
The nickel, chromium, molybdenum and copper levels of 446 Stainless Steel Forged Hydraulic Fittings provide excellent general corrosion resistance. Restricted carbon plus columbium stabilization of 446 Stainless Steel Hydraulic Type Fittings permits welded fabrications to be used in corrosive environments, normally without post – weld heat treatment. At 33 % nickel, SS 446 Hydraulic Type Fittings has practical immunity to chloride stress corrosion cracking. SS 446 Forged Hydraulic Fittings is often chosen to solve SCC problems, which may occur with 316L stainless.
SS 446 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 446 Hydraulic Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| SS 446 | 0.2 max | 1.5 max | 0.75 max | 0.04 max | 0.030 max | 23 – 30 | – | 0.50 max | 0.10 – 0.25 | Balance |
SS 446 Hydraulic Fittings Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.5 g/cm3 | 1510 °C (2750 °F) | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % |
Equivalent Grades for 446 Stainless Steel Hydraulic Tube Fittings
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 446 | 1.4762 | S44600 | – | – | – | – | – |
SS 446 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 446 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)