A193 B8 Studs have good strength and corrosion resistance. There are different classes of these bolts and nuts. Suraj Metal Corporation is a leading manufacturer of bolts and nuts in the A193 B8 Material with different types of bolts. The material has 125ksi minimum tensile strength and 105ksi minimum yield strength. The brinell hardness score of the A193 B8 Hex Bolt is at 321 max.
The material and the bolts have good hardness to withstand high abrasions. The class 1 and class 2 differ in mechanical properties, hardness and elongation. The A193 Gr B8 Bolts is used in petroleum and chemical applications for the high corrosion resistance and hardness. The class 2 has higher mechanical properties than the class 1 Hex Bolt A193 B8. The hex bolt is one of the commonly used shape of the bolts because of the geometric strength it provides and the ease of application of tools such as a torque spanner wrench. There are other types such as the A193 B8 Socket Head Cap Screw which all have carbon, manganese, phosphorus, chromium, sulfur and molybdenum in the composition. The fasteners of this grade of material are not limited to bolts. There are A193 B8 Stainless Steel Washer types which are associated with the same material grade of bolts, nuts and other fasteners. As a leading manufacturer we produce the ASTM A193 B8 Class 1 heavy hex head bolts and other types in a variety of sizes, standards and specifications. The ASTM A193 is a specification for high temperature and high pressure applications, mainly in the oil and gas industry. Please contact us for more information on the ASME SA 193 b8 bolt and a full price list
| Dimensions | ASME B18.2.1, B18.3 |
|---|---|
| Melt Origin | South America/East Europe/JapanKorea/ |
| Product Origin | Made in India |
| Threads Configuration | ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Mandatory Requirements | Free from Mercury & Radioactive Contamination |
| Additional Requirements | NACE MR0103 / MR0175 / ISO 15156 Compliance |
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNEASTM A193 | ACROASTM A193 THE FLATS | ACROASTM A193 CORNERS | ||||
| D (MAX) | D (MIN) | H (MAX) | H (MIN) | F (MAX) | F (MIN) | C (MAX) | C (MIN) | |
| m14 | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
| m10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
| m12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
| m16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
| m24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
| m30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
| m36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
| m20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
| m42 | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
| m48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
| m80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
| m64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
| m72 | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
| m90 | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
| m56 | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
| m100 | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
| Diameter (D) | Body Diameter (D) | Across the Flats (F) | Across the Corners © | Head Height (H) | Thread Lengths (T) | |||||
| MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | < 6” | > 6” | |
| 1/2 | 0.515 | 0.482 | 0.875 | 0.85 | 1.01 | 0.969 | 0.364 | 0.302 | 1.25 | 1.5 |
| 1 1/4 | 1.277 | 1.223 | 2 | 1.938 | 2.309 | 2.209 | 0.876 | 0.749 | 2.75 | 3 |
| 3/4 | 0.768 | 0.729 | 1.25 | 1.212 | 1.443 | 1.383 | 0.524 | 0.455 | 1.75 | 2 |
| 7/8 | 0.895 | 0.852 | 1.438 | 1.394 | 1.66 | 1.589 | 0.604 | 0.531 | 2 | 2.25 |
| 1 | 1.022 | 0.976 | 1.625 | 1.575 | 1.876 | 1.796 | 0.7 | 0.591 | 2.25 | 2.5 |
| 5/8 | 0.642 | 0.605 | 1.062 | 1.031 | 1.227 | 1.175 | 0.444 | 0.378 | 1.5 | 1.75 |
| 1 1/8 | 1.149 | 1.098 | 1.812 | 1.756 | 2.093 | 2.002 | 0.78 | 0.658 | 2.5 | 2.75 |
| 1 1/2 | 1.531 | 1.47 | 2.375 | 2.3 | 2.742 | 2.622 | 1.036 | 0.902 | 3.25 | 3.5 |
| 1 3/8 | 1.404 | 1.345 | 2.188 | 2.119 | 2.526 | 2.416 | 0.94 | 0.81 | 3 | 3.25 |
| 2 | 2.039 | 1.964 | 3.125 | 3.025 | 3.608 | 3.449 | 1.388 | 1.175 | 4.25 | 4.5 |
| 1 3/4 | 1.785 | 1.716 | 2.75 | 2.662 | 3.175 | 3.035 | 1.196 | 1.054 | 3.75 | 4 |
| 2 1/4 | 2.305 | 2.214 | 3.5 | 3.388 | 4.041 | 3.862 | 1.548 | 1.327 | 4.75 | 5 |
| 2 1/2 | 2.559 | 2.461 | 3.875 | 3.75 | 4.474 | 4.275 | 1.708 | 1.479 | 5.25 | 5.5 |
| 3 | 3.081 | 2.961 | 4.625 | 4.475 | 5.34 | 5.102 | 2.06 | 1.815 | 6.25 | 6.5 |
| 2 3/4 | 2.827 | 2.711 | 4.25 | 4.112 | 4.907 | 4.688 | 1.869 | 1.632 | 5.75 | 6 |
| ASTM A193 Grade b8 Stainless Steel Screws Types | SIZE | GRADE | ASME | ISO | ASTM |
|---|---|---|---|---|---|
| A193 b8 Knurled Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4029 | F912M |
| ASTM A193 b8 Stainless Steel Socket Low Head Cap Screws | M4 to M20 | 10.9 | |||
| A193 Gr b8 Socket Head Shoulder Screws | M6 to M24 | 012.9 | B18.3.3M | ||
| Stainless Steel Grade b8 Countersunk Socket Head Screws | M3 to M20 | 012.9 | B18.3.5M | 10642 | F835M |
| ASTM A193 Grade b8 Button Head Socket Screws | M3 to M12 | 012.9 | B18.3.4M | 7380 | F835M |
| A193 Grade b8 Socket Head Cap Screws | M1.6 to M64 | 12.9 | B18.3.1 M | 4762 | A574M |
| Steel A193 Grade b8 Flange Button Head Socket Screws | M3 to M10 | 012.9 | F835M | ||
| Steel ASTM A193 Grade b8 Dog Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4028 | F912M |
| Steel b8 Grade Flat Point Socket Set Screws | M6 to M12 | 45H | B18.3.6M | 4026 | F912M |
| ASME Sa 193 b8 Cone Point Socket Set Screws | M3 to M12 | 45H | B18.3.6M | 4027 | F912M |
| Grade b8 Plain Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4029 | F912M |
| ASME Sa193 Grade b8 Taper Pressure Plug | M8 to M22 | – |
| ASTM A193 B8 Bolts DIN No. | Description |
|---|---|
| 84 | Slotted Cheese Head Machine Screws |
| 94 | Cotter Pin |
| 125A | Flat Washer (without Chamfer) |
| 125B | Flat Washer (with Chamfer) |
| 439B | Machine Screws Hex Nut, Finished Hex Jam Nut |
| 127B | Split Lock Washer |
| 137B | Spring Wave Washer |
| 315 | Wing Nut |
| 916 | Hex Socket Set Screws |
| 911 | Long Arm Hex Key |
| 912 | Hex Socket Head Cap Screws |
| 939 | Double End Stud |
| 931 | Hex Head Cap Screws Partially Threaded |
| 933 | Hex Head Cap Screws Fully Threaded |
| 934 | Finished Hex Nut |
| 963 | Slotted Flat Head Machine Screws |
| 960 | Hex Head Cap Screws Partially Threaded |
| 961 | Hex Head Cap Screws Fully Threaded |
| 964 | Slotted Oval Head Machine Screws |
| 966 | Phillips Oval Head Machine Screws |
| 975 | Threaded Rod |
| 980V | Hex Steel Prevailing Torque Lock Nut |
| 985 | Hex Nylon Insert Lock Nut |
| 6334 | Rod Coupling Nut |
| 965 | Phillips Flat Head Machine Screws |
| 6797A | External Tooth Lock Washer |
| 6797J | Internal Tooth Lock Washer |
| 6912 | Hex Low Socket Head Cap Screws |
| 6921 | Hex Flange Head Screws |
| 7985 | Phillips Pan Head Machine Screws |
| 6923 | Hex Flange Nut |
| ISO 7379 | Hex Socket Head Shoulder Screws |
| ISO 7380 | Hex Button Socket Head Cap Screws |
| 7991 | Hex Flat Socket Head Cap Screws |
| ASTM | A193 Grade B8 |
A193 Grade B8T |
| Percentage | % | % |
| C. | 0.08 max. | 0.08 max. |
| Mn. | 2.00 max. | 2.00 max. |
| Si. | 1.00 max. | 1.00 max. |
| P. | 0.045 max. | 0.045 max. |
| S. | 0.030 max. | 0.030 max. |
| Cr. | 18.00---20.00 | 17.00---9.00 |
| Ni. | 8.00---10.50 | 9.00---12.00 |
| Mo. | --- | --- |
| V. | --- | --- |
| Ti. | --- | 5xCMIN |
| Brinell Hardness | 223 B.H.N. max. |
223 B.H.N. max. |
| Impact Value | Not applicable |
Not applicable |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 |
| A193 B8 304 | A320 B8 Bolts |
| Stainless Steel B8 Draw Bolt Supplier | B8 Grub Screw |
| B8 Stainless Steel Stud bolts | ASTM A 193 B8 Studs Manufacturer |
| ASTM A 193 Eye Bolt Supplier | SS B8 Plow Bolt Distributor |
| ISO Approved ASTM A193 U Bolts | Stainless Steel B8 Studs Manufacturer |
| SA193 Nuts Exporter | ASTM A193 J Bolt |
| ASTM A193 Grand B8 Stud Bolt | ASTM A193 B8 Stud Bolts |
| SS B8 Step Bolt | ASTM A 193 B8 Stud Bolt |
| Stainless Steel B8 Threaded Rod | B8 Hanger Bolt |
| ASTM A 193 B8 Heavy Hex Bolts | A193 B8 Hex Nut |
| ASTM A 193 B8 Lag Bolt Exporter | ASTM A193 B8 Stud Bolts |
| ASTM A 193 Tie Rod | ASTM A193 stud bolts Supplier |
| ASTM A193 B8 Anchor Bolt | B8 Shoulder Bolt |