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Our extensive range of high quality fastenings in A4 /316 stainless steel are specially suited to marine, swimming pool and other high corrosion applications. Manufacturer of high integrity SS Security Fasteners, Cold Forged Stainless Steel Fasteners, Industrial Stainless Steel fasteners. Certified Manufacturer & Stockist of all types of fasteners Clinching Fasteners, Furniture Fasteners, marine grade SS Fasteners. Fasteners made of stainless steel have become increasingly popular due to their inherent corrosion resistive properties.
Standard Specification For SS 304 Washers
| Material | Specification | Standards | Size | Length |
Stainless Steel Washers 304 / 304H / 304L | IS BS ASTM | ASTM / ASME – A/ SA 193 / 193 | 3 mm to 200 mm | M02 to M33 |
304 Stainless Steel Washers Equivalent Grades
| AISI Grade Equivalent | JIS Equivalent | Stainless Steel Notation | EN/DIN Numerical Equivalent | UNS designation | EN/DIN Symbolical Equivalent |
| AISI 304 | SUS304 | SS 304 | EN 1.4301 | UNS S30400 | X4CrNi18-10 |
304L Stainless Steel Washers Equivalent Grades
| AISI Grade Equivalent | JIS Equivalent | Stainless Steel Notation | EN/DIN Numerical Equivalent | UNS designation | EN/DIN Symbolical Equivalent |
| AISI 304L | SUS304L | SS 304L | EN 1..4307 | UNS S30403 | X2CrNi18-9 |
304H Stainless Steel Washers Equivalent Grades
| AISI Grade Equivalent | JIS Equivalent | Stainless Steel Notation | EN/DIN Numerical Equivalent | UNS designation | EN/DIN Symbolical Equivalent |
| AISI 304H | SUS304H | SS 304H | EN 1.4948 | UNS S30409 | X2CrNiN18-10 |
Chemical Composition of SS 304 Washers
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304 | min. max. | – 0.08 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – 0.10 |
Chemical Composition of SS 304L Washers
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304L | min. max. | – 0.030 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 12.0 | – 0.10 |
Chemical Composition of SS 304H Washers
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304H | min. max. | 0.04 0.10 | – 2.0 | – 0.75 | - 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – |
304 Stainless Steel Washers 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 | ||||
304 | 515 | 205 | 40 | 92 | 201 |
304L Stainless Steel Washers 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 | ||||
304L | 485 | 170 | 40 | 92 | 201 |
304H Stainless Steel Washers 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 | ||||
304H | 515 | 205 | 40 | 92 | 201 |
304 Stainless Steel Washers Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |