Sulfuric acid is one of the most corrosive acids used across several applications. Whilst there are several stainless steel alloys present, they are just as easily corroded on exposure to acids. As a means to improve the functionality of stainless steels in sulfuric acid solutions, Alloy 20 Fasteners Manufacturers created a nickel alloy 20. Carpenter 20 or as known as nickel alloy 20 is a metal that has excellent resistance to sulfuric acid. In comparison to grade 304 stainless steel, the Astm / Asme Sb 472 Incoloy 20 Fasteners offers better resistance to both pitting and chloride ion corrosion.
But these two properties are on par with fellow austenitic stainless steel grade 316. Some of the industries that use Werkstoff Nr. 2.4660 Hex Bolts include chemical, power generation, petrochemical, as well as the plastic industry. The above mentioned industries use highly corrosive compounds to produce the end product. Especially the chemical industry, which uses several corrosive acids. The addition of copper in the alloy protects the Alloy 20 Stainless Steel Bolts from corrosion against sulfuric acid.
Though the corrosion resistance properties of this alloy are similar to grade 316, the Uns N08020 Threaded Rod is associated with its resistance to issues against stress corrosion cracking. The other industries that make use of Alloy 20 Bolts also include applications across industries that produce solvents, explosives, pharmaceuticals, food, and beverage as well as synthetic materials.
| Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards |
|---|---|
| Threads: | BSF, UNF METRIC, UNC, BSW or as required |
| Standard | ANSI – American National Standards Institute
DIN:DIN 933, DIN 931, DIN 970, DIN 934 UTS – Unified Thread Standard : UNF, NPT, NPTF, UNS, UNC, UNEF ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards |
| Fasteners/ Bolts Size | M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160 |
| Length | 3 mm to 200 mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe etc |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Finishing | Zinc white, (yellow, black, blue), black oxide,
Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating |
| raw materials of Source | JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc. |
| Form | Square, Hex, Threading as per Gauge, Round Etc. |
| Process of Production | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Surface Coating |
|
| Packing | IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request |
Element |
Content (%) |
Carbon |
≤0.07 |
Manganese |
≤2 |
Boron |
0.01 max |
Copper |
3-4 |
Phosphorus |
≤0.045 |
Nickel |
32-38 |
Molybdenum |
2-3 |
Iron |
35 |
Sulfur |
≤0.035 |
Silicon |
≤1 |
Chromium |
19-21 |
Properties |
Metric |
Imperial |
|---|---|---|
Density |
8.05 g/cm3 |
0.291 lb/in3 |
Properties |
Metric |
Imperial |
|---|---|---|
Tensile strength (annealed) |
620 MPa |
89900 psi |
Yield strength (annealed) |
300 MPa |
43500 psi |
Elongation at break (annealed) |
41% |
41% |
Alloy 20 |
20Cb-3® |
UNS N08020 |
Carpenter 20® |
EN/DIN 2.4660 |
| Alloy 20 Set Screw | Alloy 20 Grub Screw |
| DIN 2.4660 Step Bolt | Alloy 20 Hanger Bolt |
| Alloy 20 hex bolts | UNS N08020 heavy hex bolt |
| Alloy 20 Eye Bolt | Alloy 20 Step Bolt |
| Alloy 20 Machine screw | Alloy 20 allen cap screw |
| Alloy 20 Square bolts | Alloy 20 Steel round head bolts |
