Sachiya Steel International is one of the prominent trader and whole seller for high quality Stainless Steel 310 Washers, which results in less internal stress and, most important, a deeper hardened zone in the work – piece. Alloying elements have a strong influence on heat-treating; because SS 310 Flat Washers tend to slow the diffusion of atoms through the iron lattices and thereby delays the allotropic transformations.
This means, for example, that the extremely hard martensite of Stainless Steel 310S Lock Washers, which is normally produced by fast quenching, can be produced at lower cooling rates. Improved hardenability of Stainless Steel 310 Sealing Washers is achieved by adding such elements as manganese, molybdenum, chromium, nickel, and boron. These alloying agents in SS 310S Split Washers also permit tempering at higher temperatures, which generates better ductility at the same hardness and strength.
The testing of properties in Stainless Steel 310 Slot Washers often begins with checking hardness. Stainless Steel 310S Machine Washers is measured by pressing a diamond pyramid or a hard steel ball into the steel at a specific load. Tensile and yield strength of SS 310 Star Washers are determined by pulling a standardized machined sample in a special hydraulic press and recording the pulling force at increasing elongations until the sample breaks. The elongation of SS 310S Spring Washers, and the way the fracture looks, is good indications of the steel’s ductility.
SS 310/310S Washer Specifications |
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| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | M02 to M33 |
| Size | : | 3 mm to 200 mm |
| Type | : | Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring |
310 Stainless Steel Washers Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 310S | 0.08 max | 2 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
Stainless Steel 310 Washer Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Equivalent Grades for 310 Stainless Steel Washer
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
| SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | – | X8CrNi25-21 |
SS 310/310S Washers 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
310/310S Steel Washers 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.
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 MacroTest
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
• 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)