Stainless Steel 202 Bolts are made up of a chromium nickel manganese stainless steel. It can replace nickel based alloys and is relatively low cost. Suraj Metal Corporationis a leading manufacturer of the different SS 202 Hex Bolt and nut types. There are different fasteners in this material grade. The material cannot be hardened by heat treatment. But the material can be cold worked to get better strength.
The SS 202 Nut Bolt can also be annealed to strengthen it. The material is made up of carbon, manganese, sulfur, phosphorus, silicon, chromium, nickel and nitrogen. The 202 Stainless Steel Dowel Pins can also come in annealed, hard, half hard, full hard and so on. These different types of this material have different strength values. The 202 Stainless Steel Threaded Rod can have from 38ksi to 145ksi and the tensile strength can range from 75ksi to 185ksi. The hardness of the material can range from 25 to 95 HBW. The UNS S20200 SS 202 Screw comes under the specification of ASTM A240 and A666. The different types of fasteners in this grade such as the SS 202 Stud Bolts are used in different application sets. As a leading manufacturer, we produce these fasteners in different types, sizes and specifications. Please feel free to contact us for more information and pricing of the different fasteners such as the SS 202 Washer.
| Standard | As per IS , ASTM , BS etc. |
| Specification | ASTM A/ASME SA 193/194 |
| Size | M02 to M33 |
| Length | 3 mm to 200 mm |
| Element | Type 201 |
|---|---|
| Carbon | 0.15x |
| Manganese | 5.5 - 7.5 |
| Sulfur | 0.03X |
| Phosphorus | 0.060x |
| Silicon | 1.0 x |
| Chromium | 16 - 18 |
| Nickel | 3.5 -5.5 |
| Nitrogen | 0.25x |
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2" Gauge length) |
Hardness Rockwell |
|---|---|---|---|---|
| 201 Ann | 38 min. | 75 min. | 40% min. | HRB 95 max. |
| 201 ¼ Hard | 75 min. | 125 min. | 25.0 min. | 25 – 32 HRC (typical) |
| 201 ½ Hard | 110 min. | 150 min. | 18.0 min. | 32 - 37 HRC (typical) |
| 201 ¾ Hard | 135 min. | 175 min. | 12.0 min. | 37 – 41 HRC (typical) |
| 201 Full Hard | 145 min. | 185 min. | 9.0 min. | 41 – 46 HRC (typical) |
| Density (lb./ in^2) @ RT | 0.283 | |
|---|---|---|
| Modulus of Elasticity in Tension (psi x 10^6) | 28.6 | |
| Specific Heat (BTU/o F/lb.) | 32 to 212 °F | 0.12 |
| Thermal Conductivity (BTU/hr/ft^2/ft) | 212°F | 9.4 |
| Mean Coefficient of Thermal Expansion (in. x 10^-6 per °F) | 32 to 212°F 32 to 600°F 32 to 1,000°F |
8.7 9.7 10.2 |
| Electrical Resistivity (micro ohms - cm) | at 70oF | 69 |
| Melting Point Range (oF) | 2550/2650 | |
| Oxidation Resistance - Continuous Service(oF) | 1550 | |
| Oxidation Resistance - Intermittent Service(oF) | 1500 |
