Among the most corrosive acids, sulfuric acid is employed in a variety of applications. Although there are many stainless steel alloys, they are all equally susceptible to corroding when exposed to acids. Alloy 20 Fasteners Manufacturers developed nickel alloy 20 to enhance the performance of stainless steels in sulfuric acid solutions. A metal with exceptional resistance to sulfuric acid is called Carpenter 20 or nickel alloy 20. Astm/Asme Sb 472 Incoloy 20 Fasteners offer superior resistance to pitting and chloride ion corrosion as compared to grade 304 stainless steel.
However, these two characteristics are comparable to those of grade 316 austenitic stainless steel. Werkstoff Nr. 2.4660 Hex Bolts are used in a variety of industries, including the production of chemicals, electricity, petrochemicals, and plastics. The final product produced by the aforementioned businesses includes highly corrosive chemicals. Particularly the chemical sector, which makes use of numerous corrosive acids. The alloy's inclusion of copper shields the Alloy 20 Stainless Steel Bolts from corroding in the presence of sulfuric acid.
Although this alloy has corrosion resistance qualities comparable to grade 316, the Uns N08020 Threaded Rod is known for its resistance to stress corrosion cracking problems. Applications for Alloy 20 Bolts can be found in a variety of other industries, such as those that manufacture synthetic materials, explosives, food, beverages, pharmaceuticals, and solvents.
| 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 |
