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Boltport Fasteners is a known manufacturer and offers a wide range of Duplex Stainless Steel UNS S31803 Bolts, where the steel should be acid cleaned to obtain maximum corrosion resistance. Solution treatment (annealing) heat up to 1020 Degree C – 1100 Degree C and cool rapidly, where this Duplex Steel UNS S31803 Bolts cannot be hardened by thermal treatment, but does work harden. Our Duplex UNS S31803 Bolts are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding. These Duplex Steel S31803 Bolts is readily weldable using many of the standard electric arc welding processes but oxyacetylene welding is not recommended because carbon pickup in the weld metal may occur. Our Duplex S31803 Bolts is used in the following applications: Flue gas filters, Heat exchangers, Chemical tanks, Acetic acid distillation components, etc. These UNS S31803 Duplex Bolts has Resistance to chloride pitting and crevice corrosion, High Strength, and High resistance to chloride stress corrosion cracking.
| Specifications : | ASTM A479/SA479 |
| Dimensions : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length : | 3 mm to 200 mm |
| Bolts Size : | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Grade : | UNS S31803 |
| Type : | Bolts, Hex Bolts, Heavy Hex Bolts, Carriage Bolts, Lag Bolts, Flange Bolts, Eye Bolts, Eye Lags, U-Bolts, J-Bolts, Shoulder Bolts, Elevator Bolts, Sex Bolts, Hanger Bolts, 12 point Bolts, Socket Bolt, Anchor Bolt, Mushroom Head Square Neck Bolts, Foundation Bolts, Structural Bolts, T-Head Bolts, Plow Bolt, Draw Bolt, Step Bolt, Stove Bolt, Tap Bolt, Machine Bolt etc. |
| STANDARD | UNS | WERKSTOFF NR. |
| S31803 | S31803 | 1.4462 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Density | Melting Point |
| 7.8 g/cm3 | 1420 – 1465 °C (2588 – 2669 °F) |
Duplex Steel S31803 Structural Bolts Suppliers, Duplex Steel UNS S31803 Machine Bolts, Duplex Steel S31803 Stove Bolts, SA479 Duplex Steel UNS S31803 Step Bolts, Duplex S31803 T-Head Bolts, Duplex Steel UNS S31803 Tap Bolts, ASTM A479 Duplex S31803 Foundation Bolts Supplier in Mumbai.
This leads to reduced plate thicknesses being used in fabrications of our UNS S31803 Duplex Steel Bolts reducing the weight which is of particular significance in items such as pressure vessels, storage tanks, and structural applications such as bridges. However, because descaling of these UNS S31803 Duplex Stainless Steel Bolts is somewhat difficult in comparison with Type 304, alkali immersion before acid pickling, and if possible, shot blasting are extremely effective.
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