Grade F55, also known as UNS S32760 or grade UNS S32760, is a duplex class stainless steel alloy. The astm a182 F55 bolts' mechanical attributes are highly valued by their users in a variety of industries. The alloy for ASTM A182 Grade F55 Fasteners is referred to as super duplex stainless steel due to the material's outstanding qualities. Super duplex stainless steel alloys typically have PREN values that are significantly greater than regular duplex alloys.
Therefore, applications that require to address problems like pitting or crevice corrosion can use Super Duplex Steel Gr F55 Heavy Hex Nuts. The ability of the Super Duplex Gr F55 Round Head Bolts to withstand a troublesome issue like stress corrosion cracking, or SCC, in environments containing halides is the alloy's most intriguing feature, though. Over time, halogens like chlorine are bad for the health and longevity of metals. The Super Duplex Steel Gr F55 Stud bolt alloy has tungsten and copper inclusions that make it resistant to use in situations with aggressive chloride. Another problem that affects common stainless steel grades is fatigue.
For applications where fatigue or erosion corrosion are most likely to occur, Super Duplex F55 Threaded Rod is the best choice. The Super Duplex Gr F55 Screws are around 10% lighter than grade 316, making them suitable for applications where lighter weight metals are preferred. The astm a182 gr f55 bolts, which have great mechanical strength, are a more affordable alternative to nickel alloys.
| 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 |
| For Bolts & Screws | A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H |
| For Nuts | A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040 |
| For SHCS | F837B, F837C, F837E, F837 |
| For Threaded Rods | A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2 |
| Element | Content (%) |
|---|---|
| Chromium, Cr | 24 – 26 |
| Nickel, Ni | 4.5 – 6.5 |
| Phosphorous, P | 0.035 Max |
| Carbon, C | 0.03 max |
| Sulfur, S | 0.015 Max |
| Molybdenum, Mo | 3 – 4 |
| Manganese, Mn | 1.2 Max |
| Silicon, Si | 0.8 Max |
| Copper, Cu | Balance |
| Nitrogen, N | 0.25 |
| Iron, Fe | Balance |
| Grade | Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
| Alloy GR F55 | 110 | 80 | 15 | 28 max |
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| ASTM A182 GR.F55 | – | 1.4501 |
| Hexagon Bolts / Set Screws | Stud Bolts | Hexagon Nuts | Socket Cap screws |
|---|---|---|---|
| DIN 931 | BS4882 | DIN 934 | DIN 912 |
| DIN 933 | DIN 976 | BS 1768 | DIN 6912 |
| BS 1768 | BS 1769 | DIN 7984 | |
| UNI 5731 | BS 1083 | ANSI B18.3 | |
| UNI 5739 | BS 3692 | ISO 4762 | |
| ISO 4014 | ISO 4032 | UNI 5931 | |
| ISO 4017 | ISO 4033 | BS 2470 | |
| BS 1769 | ANSI B18.2.2 | BS 4168 | |
| BS 3692 | |||
| ANSI B18.2.1 |
