ASTM A193 B8 Bolt
Grade A193 Flange Head Bolt, ASTM A193 B8 Hex Head Bolt, ASME SA193 Grade B8 U Bolt, AISI 304 Grade B8 Allen Bolt, B8 Grade Stud Bolt.
Typically, molybdenum and copper are not present in the alloy of stainless steel alloy 304. However, Grade B8 has a sizable amount of molybdenum and copper. Furthermore, compared to the standard A198 Gr. B8 Socket Head Cap Screws, a more comprehensive nitrogen concentration range, are allowed in Grade B8MLCuN. This is another point of variation. There are two grades of Grade B8 bolts on the marketplace. Both classes go through a procedure known as solution annealing.
The ASTM a193 b8 threaded rod is often subjected to a strain hardening procedure in which alloy 304 is plastically deformed to harden the material. The crystalline pattern of the alloy is prone to internal dislocation during plastic deformation of the product or material for ASTM a193 grade b8 bolts. In contrast, the liquid carbide or annealing solution treatments enhance ASTM A193 B8 Class 1 Bolts’ mechanical qualities. When the materials may be subjected to high temperatures, solvent annealed the SA193 B8 Threaded Rod is advantageous. By solution annealing, it is feasible to eliminate undesirable phases or carbides in the alloy used to make ASTM A193 B8 Heavy Hex Bolts.
About ASTM A193 B8 Bolt
ASTM A193 B8 Hex Bolt, SA193 Grade B8 Allen Bolt, Grade A193 Hex Head Bolt, ASME SA193 Grade B8 Anchor Bolt, AISI 304 Grade B8 U Bolt, A193 B8 Flange Head Bolt, B8 Grade Eye Bolt.
One of the most commonly desired materials for creating numerous components, including bolts, is grade 304. Stainless steel 304 is recognized to be associated with B8 bolts in ASTM a193 b8 stud bolts. Typically, the chemical makeup of the alloy for 304 is sa 193 gr b8, with the proportions of chromium and nickel being 18/8. As a result, the ASTM A193 B8 Class 2 Material may also be referred to by numerous producers in many industries regarding its chemical structure. It is feasible to create a fastener like ASTM A193 B8 Bolts Specification because austenitic stainless steels, particularly those from the 300 series, might have their chemical elements adjusted.
ASTM A193 B8 Bolt Specification
| Dimensions | ASME B18.2.1, B18.3 |
| Melt Origin | Korea, South America, Japan, East Europe, |
| Mandatory Requirements | Free from Mercury & Radioactive Contamination |
| Additional Certifications | PED 97/ 23/ EC Certified, Merkblatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Additional Requirements | NACE MR0103 / MR0175 / ISO 15156 Compliance |
| Threads Configuration | ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
Chemical Composition ASTM A193 B8 Bolt
| ASTM | C. | Mn. | Si. | P. | S. | Cr. | Ni. | Mo. | V. | Ti. | Brinell Hardness | Impact Value |
| A193 Grade B8 | 0.08 max. | 2.00 max. | 1.00 max. | 0.045 max. | 0.030 max. | 18.00---20.00 | 8.00---11.00 | --- | --- | --- | 223 B.H.N. max. | Not applicable |
Mechanical Properties ASTM A193 B8 Bolt
| Grade | Tensile Strength, min, MPa | Yield, Strength, min 0.2% offset MPa | Elongation in 4D, min % | Reduction of Area % min | Hardness, max | |
| B8 Class 1 | 515 | 205 | 30 | 50 | 223 HBW or 96 HRB | |
| B8 Class 2 | 860 | 690 | 12 | 35 | 321 HBW or 35 HRC | |
| Over M20 to M24 incl | 795 | 550 | 15 | 35 | 321 HBW or 35 HRC | |
| Over M24 to M30 incl | 725 | 450 | 20 | 35 | 321 HBW or 35 HRC | |
| Over M30 to M36 incl | 690 | 345 | 28 | 45 | 321 HBW or 35 HRC |
Dimensions Of ASTM A193 B8 Bolt
ASTM A193 Grade B8 Bolts Dimensions Chart :
| Nominal Size or Basic Product Diameter | Full-Size Body Diameter, E | Width Across Flats, F | Width Across Corners, G | Head Height, H Basic | Radius of Fillet, R | Nominal Thread Length for Bolt Lengths, LT |
|||||||||
| inch | mm | Max | Min | Basic inch | Max | Min | Max | Min | Basic inch | Max | Min | Max | Min | 6 in. and Shoter | Over 6 in. |
| 1⁄4 | 0.25 | 0.26 | 0.237 | 7⁄16 | 0.438 | 0.425 | 0.505 | 0.484 | 11⁄64 | 0.188 | 0.15 | 0.03 | 0.01 | 0.75 | 1 |
| 5⁄16 | 0.3125 | 0.324 | 0.298 | 1⁄2 | 0.5 | 0.484 | 0.577 | 0.552 | 7⁄32 | 0.235 | 0.195 | 0.03 | 0.01 | 0.875 | 1.125 |
| 3⁄8 | 0.375 | 0.388 | 0.36 | 9⁄16 | 0.562 | 0.544 | 0.65 | 0.62 | 1⁄4 | 0.268 | 0.226 | 0.03 | 0.01 | 1 | 1.25 |
| 7⁄16 | 0.4375 | 0.452 | 0.421 | 5⁄8 | 0.625 | 0.603 | 0.722 | 0.687 | 19⁄64 | 0.316 | 0.272 | 0.03 | 0.01 | 1.125 | 1.375 |
| 1⁄2 | 0.5 | 0.515 | 0.482 | 3⁄4 | 0.75 | 0.725 | 0.866 | 0.826 | 11⁄32 | 0.364 | 0.302 | 0.03 | 0.01 | 1.25 | 1.5 |
| 5⁄8 | 0.625 | 0.642 | 0.605 | 15⁄16 | 0.938 | 0.906 | 1.083 | 1.033 | 27⁄64 | 0.444 | 0.378 | 0.06 | 0.02 | 1.5 | 1.75 |
| 3⁄4 | 0.75 | 0.768 | 0.729 | 11⁄8 | 1.125 | 1.088 | 1.299 | 1.24 | 1⁄2 | 0.524 | 0.455 | 0.06 | 0.02 | 1.75 | 2 |
| 7⁄8 | 0.875 | 0.895 | 0.852 | 1 5⁄16 | 1.312 | 1.269 | 1.516 | 1.447 | 37⁄64 | 0.604 | 0.531 | 0.06 | 0.02 | 2 | 2.25 |
| 1 | 1 | 1.022 | 0.976 | 1 1⁄2 | 1.5 | 1.45 | 1.732 | 1.653 | 43⁄64 | 0.7 | 0.591 | 0.09 | 0.03 | 2.25 | 2.5 |
| 1 1⁄8 | 1.125 | 1.149 | 1.098 | 1 11⁄16 | 1.688 | 1.631 | 1.949 | 1.859 | 3⁄4 | 0.78 | 0.658 | 0.09 | 0.03 | 2.5 | 2.75 |
| 1 1⁄4 | 1.25 | 1.277 | 1.223 | 1 7⁄8 | 1.875 | 1.812 | 2.165 | 2.066 | 27⁄32 | 0.876 | 0.749 | 0.09 | 0.03 | 2.75 | 3 |
| 1 3⁄8 | 1.375 | 1.404 | 1.345 | 2 1⁄16 | 2.062 | 1.994 | 2.382 | 2.273 | 29⁄32 | 0.94 | 0.81 | 0.09 | 0.03 | 3 | 3.25 |
| 1 1⁄2 | 1.5 | 1.531 | 1.47 | 2 1⁄4 | 2.25 | 2.175 | 2.598 | 2.48 | 1 | 1.036 | 0.902 | 0.09 | 0.03 | 3.25 | 3.5 |
| 1 5⁄8 | 1.625 | 1.658 | 1.591 | 2 7⁄16 | 2.438 | 2.356 | 2.815 | 2.616 | 1 3⁄32 | 1.116 | 0.978 | 0.09 | 0.03 | 3.5 | 3.75 |
| 1 3⁄4 | 1.75 | 1.785 | 1.716 | 2 5⁄8 | 2.625 | 2.538 | 3.031 | 2.893 | 1 5⁄32 | 1.196 | 1.054 | 0.12 | 0.04 | 3.75 | 4 |
| 1 7⁄8 | 1.875 | 1.912 | 1.839 | 2 13⁄16 | 2.812 | 2.719 | 3.248 | 3.099 | 1 1⁄4 | 1.276 | 1.13 | 0.12 | 0.04 | 4 | 4.25 |
| 2 | 2 | 2.039 | 1.964 | 3 | 3 | 2.9 | 3.464 | 3.306 | 1 11⁄32 | 1.388 | 1.175 | 0.12 | 0.04 | 4.25 | 4.5 |
| 2 1⁄4 | 2.25 | 2.305 | 2.214 | 3 3⁄8 | 3.375 | 3.262 | 3.897 | 3.719 | 1 1⁄2 | 1.548 | 1.327 | 0.19 | 0.06 | 4.75 | 5 |
| 2 1⁄2 | 2.5 | 2.559 | 2.461 | 3 3⁄4 | 3.75 | 3.625 | 4.33 | 4.133 | 1 21⁄32 | 1.708 | 1.479 | 0.19 | 0.06 | 5.25 | 5.5 |
| 2 3⁄4 | 2.75 | 2.827 | 2.711 | 4 1⁄8 | 4.125 | 3.988 | 4.763 | 4.546 | 1 13⁄16 | 1.869 | 1.632 | 0.19 | 0.06 | 5.75 | 6 |
| 3 | 3 | 3.081 | 2.961 | 4 1⁄2 | 4.5 | 4.35 | 5.196 | 4.959 | 2 | 2.06 | 1.815 | 0.19 | 0.06 | 6.25 | 6.5 |
| 3 1⁄4 | 3.25 | 3.335 | 3.21 | 4 7⁄8 | 4.875 | 4.712 | 5.629 | 5.372 | 2 3⁄16 | 2.251 | 1.936 | 0.19 | 0.06 | 6.75 | 7 |
| 3 1⁄2 | 3.5 | 3.589 | 3.461 | 5 1⁄4 | 5.25 | 5.075 | 6.062 | 5.786 | 2 5⁄16 | 2.38 | 2.057 | 0.19 | 0.06 | 7.25 | 7.5 |
| 3 3⁄4 | 3.75 | 3.858 | 3.726 | 5 5⁄8 | 5.625 | 5.437 | 6.495 | 6.198 | 2 1⁄2 | 2.572 | 2.241 | 0.19 | 0.06 | 7.75 | 8 |
| 4 | 4 | 4.111 | 3.975 | 6 | 6 | 5.8 | 6.928 | 6.612 | 2 11⁄16 | 2.764 | 2.424 | 0.19 | 0.06 | 8.25 | 8.5 |
Different Types Of ASTM A193 B8 Bolt
Different Types Of Bolts:
ASTM A193 Grade B8 Hex Bolts
ASTM A193 Grade B8 Carriage Bolts
ASTM A193 Grade B8 Stud Bolts
ASTM A193 Grade B8 Hex Head Bolts
ASTM A193 Grade B8 Forged Hook Bolts
ASTM A193 Grade B8 Torx Bolts
ASTM A193 Grade B8 Countersunk Bolts
ASTM A193 Grade B8 Flange Head Bolts
ASTM A193 Grade B8 Allen Bolts
ASTM A193 Grade B8 12-Point Flange Bolts
ASTM A193 Grade B8 Eye Bolts
ASTM A193 Grade B8 Bolts
ASTM A193 Grade B8 U Bolts
ASTM A193 Grade B8 J Bolts
ASTM A193 Grade B8 Elevator Bolt
ASTM A193 Grade B8 Threaded Expansion Anchor Bolt
ASME SA 193 B8 High Performance Anchor Bolts
