Nascent Pipe & Tubes offers an extensive range of Duplex Steel S31803 / S32205 Fasteners (Screws), which is factory – made at par by means of the international quality of standards by making use of superior – grade of steel. Duplex Steel S31803 Hex Head Screws resists sulphide stress corrosion and chloride atmospheres.
Duplex Steel S32205 Socket Head Cap Screws is generally used in Chemical Process Industries: such as in Nitric Acid Procedures, Sulphuric Acid Manufacture, Phosphoric Acid Developments, Polypropylene Manufacture, Ethylene oxide, Machinery Handling Organic and Fatty Acids, Chemical Tankers and Storage, Heat Exchangers, and so on.
Duplex S31803 / S32205 Screw Manufacturers, Duplex S31803 / S32205 Screw Suppliers, Duplex S31803 / S32205 Screw Stockists, Duplex S31803 / S32205 Screw Exporters
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Duplex Steel S31803 Socket Set Screws is a stainless steel whose design allows uniting better – quality of resistance to pitting, soaring potency, stress corrosion, cracking and crevice corrosion. Meanwhile, these Duplex Steel S32205 Anchore Screws are also being offered in different sizes and shapes to our customers. As further discussed elsewhere, exposure of a Duplex Steel S31803 Blind Rivet Screws to temperatures in the range of 1100 Degree F – 1825 Degree F can cause precipitation of intermetallic phases with substantial loss of corrosion resistance.
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These precipitates in Duplex Steel S32205 Concrete Screws are better detected by tests for critical pitting temperature or critical crevice temperature in strong chloride environments, and not by the ASTM tests commonly used for sensitization to inter – granular corrosion. We also offer these Duplex Steel S31803 Threaded Screws in customized sizes and shapes for our esteemed clients.
Duplex S31803 Screws Specifications
| Specifications |
ASTM A 479 ASME SA 479 |
| Standard |
IS, ASTM, BS and all International Standards |
| Length |
3 mm to 200 mm |
| Size |
M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type |
Hex Head Screw, Socket Head Cap Screw, Socket Set Screws, Anchor Screw, Blind Rivet, Concrete screw, Threaded Screw, Steel Shoulder Screw, Panel Screw, Machine Screw. |
S31803 / S32205 Duplex Screw Chemical Composition
| S31803 / S32205 |
C |
N |
P |
Si |
Mn |
Mo |
Fe |
Cr |
S |
Ni |
| 1.0 |
0.03 |
0.02 |
2.0 |
3.0 – 3.5 |
22.0 – 23.0 |
0.03 |
4.5 – 6.5 |
0.14 – 0.2 |
Bal |
Duplex Steel S31803 / S32205 Screw Mechanical Properties
| S31803 / S32205 |
Density |
Melting Point |
Yield Strength (0.2%Offset) |
Tensile Strength |
Elongation |
| 7.8 g/cm3 |
1350 °C (2460 °F) |
Psi – 80000 , MPa – 550 |
Psi – 116000 , MPa – 800 |
15 % |
Equivalent Grades for S31803 / S32205 Duplex Stainless Steel Screw
| STANDARD |
UNS |
WERKSTOFF NR. |
| Duplex S31803 |
S31803 |
1.4462 |
| Duplex S32205 |
S32205 |
1.4462 |
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