ASTM A193 Grade B8R Bolts
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The determination for ASTM A193 covers amalgam and treated steel dashing for weight vessels, valves, spines, and fittings for high temperature or high weight benefit, or other extraordinary reason applications. The ASTM A193 particular spreads bars, fasteners, screws, studs, stud fasteners, and wire. The material might be additionally handled by centerless granulating or by virus drawing.
ASTM A193 is an imperative detail that oversees the mechanical, concoction, and dimensional attributes of numerous regular clasp, for example, B7 stud jolts. It is a particular that is amazingly normal in modern funneling and covers combination and treated steel blasting materials for weight vessels, valves, spines, and fittings for high-temperature benefit. The term catapulting material as utilized in this determination covers bars, fasteners, screws, studs, stud fasteners, and wire.
Bars and wire will be hot-fashioned. The material might be additionally prepared by centerless granulating or by virus drawing. Austenitic tempered steel might be carbide arrangement treated or carbide arrangement treated and strain-solidified. A few evaluations are secured, including ferritic steels and austenitic tempered steels assigned B5, B8, etc. Determination will rely on configuration, benefit conditions, mechanical properties, and high-temperature qualities.
Useful Information of A193 Grade B8R Bolts
| A193 Grade B8R Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
| Standard: | DIN 933, DIN 931, ANSI, JIS standards |
| A193 Grade B8R Fasteners In Form of: | Hex |
| Square | |
| Round | |
| Threading as per Gauge Etc. | |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
| A193 Grade B8R Packing: | IN BULK :canton/pallet, Small Boxs/carton/ pallet, or customer request |
| A193 Grade B8R Test Certificate: | Manufacturer Test Certificate as per EN 10204 / 3.1 |
| Property Class: | 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 | |
| A193 Grade B8R Finish: | Passivated |
| A193 Grade B8R Origin and service-region: | European |
| Origin of 304 Stainless Steel Nuts are Western European. However projects with eastern origin are possible on request. | |
| Stainless Steel Grades: | AISI 304, AISI 304L, AISI 316, AISI 316L, AISI 309, AISI 310, AISI 317L, AISI 321, AISI 317, AISI 309, AISI 410, AISI 422, AISI 430, AISI 431, AISI 303 , AISI 202 fasteners Etc. |
| Surface Coating: | Hot Dipped Galvanizing Fasteners |
| Phosphate Fasteners | |
| Teflon Fasteners | |
| Ptfe Coated Fasteners | |
| Xylon Fasteners | |
| Zinc Fasteners | |
| Cadmium Fasteners |
Other product range of A193 Grade B8R Bolts
| A193 Grade B8R Nuts | A193 Grade B8R Hex Slotted Nuts |
| A193 Grade B8R Bolts | A193 Grade B8R Heavy Hex Nuts |
| A193 Grade B8R screws | A193 Grade B8R Heavy Hex Jam Nuts |
| A193 Grade B8R washers | A193 Grade B8R Heavy Hex Slotted Nuts |
| A193 Grade B8R Heavy Hex Bolts | A193 Grade B8R Hex Coupling Nuts |
| A193 Grade B8R Finished Hex Bolts | A193 Grade B8R Cap Nuts |
| A193 Grade B8R Oval Neck Track Bolts | A193 Grade B8R 12-Point Nuts |
| A193 Grade B8R Bent Bolts | A193 Grade B8R Flat Washers |
| A193 Grade B8R Hex Cap Screws | A193 Grade B8R Lock Washers |
| A193 Grade B8R Heavy Hex Screws | A193 Grade B8R Beveled Washers |
| A193 Grade B8R 12-Point Screws | A193 Grade B8R Threaded Rod |
| A193 Grade B8R Socket Head Cap Screws | A193 Grade B8R Stud Bolts |
| A193 Grade B8R Socket Head Shoulder Screws | A193 Grade B8R Continuous Thread Studs |
| A193 Grade B8R Socket Set Screws | A193 Grade B8R Double End Studs |
| A193 Grade B8R Flat Countersunk Head Cap Screws | A193 Grade B8R Tap End Studs |
| A193 Grade B8R Hex Nuts | A193 Grade B8R Threaded Taper Pins |
| A193 Grade B8R Hex Jam Nuts | A193 Grade B8R Heavy Square Nuts |
Other important data of A193 Grade B8R Fasteners
| Physical Properties | Value | Units | Comments |
| Density | 0.291 | lb/in3 g/cm3 | |
| 8.06 | |||
| Mechanical Properties | |||
| Modulus of Elasticity | 28.3 x 106195 | psiGPa | |
| Melting Range | 2410 to 2550 | ºF | |
| Coefficient of Expansion | 8.5 | 10-6/ °F | |
| 68 to 212 °F | 15.3 | 10-6/ °C | |
| 20 to 100 °C | |||
| Modulus of Elasticity | 193 GPa | 28000 ksi | In Tension |
| Sealing Temperature | 1885 | °F | |
| 1030 | °C | ||
| Electrical Properties | |||
| Electrical Resistivity | 535 | Ohm·circ mil/ft | |
| 0.89 | µOm | ||
| Magnetic Permeability | 1.0028 | Oersted | Fully annealed 0.5″ plate 65% cold-worked plate |
| 1.0028 | (µ at 200H) | ||
| Thermal Properties | |||
| Specific Heat Capacity | 0.11 | Btu/lb·°F | |
| 500 | J/kg·K | ||
Chemical Composition
| Element | |
|---|---|
| CompositionA, % | |
| Carbon | 0.06 max |
| Manganese | 4.00 - 6.00 |
| Phosphorus | 0.045 max |
| Sulfur | 0.030 max |
| Silicon | 1.00 max |
| Chromium | 20.50 - 23.50 |
| Nickel | 11.50 - 13.50 |
| Molybdenum | 1.50 - 3.00 |
| Nitrogen | 0.20 - 0.40 |
| Columbium + tantalum | 0.10 - 0.30 |
| Vanadium | 0.10 - 0.30 |
Raw Material Description
| Grade | Raw Material Description |
|---|---|
| B8R | Nitronic 50/UNS S20910 Stainless Steel, Carbide Solution Treated |
Mechanical Properties
| Grade | Diameter | Tensile Strength | Yield Strength | Elongation | Reduction | Hardness |
|---|---|---|---|---|---|---|
| Grade B8R, Class 1C, 1D | All Diameters | 690 | 380 | 35 | 55 | 271 HBW or 28 HRC |
ASTM A193 Characteristics
| Grade | Description | Diameter | Tensile Strength, min. | Yield Strength, min. | Hardness, max. | Marking |
|---|---|---|---|---|---|---|
| ASTM A193 B8R | S20910 | all | 100 | 55 | 271 HB or 28 HRC | B8R |
| ASTM A193 B8S | S21800 | all | 95 | 50 | 271 HB or 28 HRC | B8S |
ASTM A193 B8R Bolts Industrial Applications
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