ASTM A193/A193M B7M All Threaded Stud Bolts
Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Standard: IFI-136, ASME B16.5, DIN976
Inch Size: 1/4”-4” with various lengths
Metric Size: M6-M100 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
ASTM A193
Scope
Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications. The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
Below is a basic summary of a few of the common grades. ASTM A193 covers a number of other standard specifications not covered in this description including B5, B6, and B16.
Grades
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
Mechanical Properties
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M 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 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
Recommended Nuts and Washers
| Bolt Grade | Nuts | Washers |
| B7 | A194 Grade 2H | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8 | SS304 |
| B8M Class 2 | A194 Grade 8M | SS316 |
Strain hardened nuts available as a supplementary requirement
The posts are set and the bands are in place, now it is time to install the fabric and gate for your chain link fence. First, you will install the fabric. Start by inserting the tension bar through the end loops on the fabric and the tension bands on the terminal post. Then unroll the chain link fencing fabric on the ground. Stand up against the fence, taking out any excess slack. Attach a few wire ties to hold the fabric in place.
Now, remove the excess fabric at the end of the fencing line by opening up the loops at the top and the bottom Then twist the strand out. Follow up by taking a tension bar and inserting it 3 feet into the fabric. Add a temporary tension band on the terminal post and hook the stretcher bar to the temporary tension bar. Attach the come-along to the stretcher and to the temporary tension band on the post. Slowly and evenly tighten the fabric. There should just be enough tension so you cannot squeeze the fabric with your fingers.
Once the fabric is tight along the run, pull the rest of it tight against the terminal end post. Insert a tension bar through the fabric and tension bands on the terminal post. Secure with bolts. Carefully loosen and remove stretching tools.
Secure fabric to the top rail and the line posts with wire ties and to the tension wire with clips. Continue installing fence fabric between terminal posts until the entire fence, except the gate, is completed.
Now you are ready to attach the chain link gate. Start by installing the post side of the hinges. Attach with bolt and socket wrench. Make sure the top pin faces down and the bottom pin faces up. Then loosely attach the frame hinges to the gate. Use blocks to hold the gate to height and position. Adjust the bottom frame hinge to attach to the the bottom frame pin. Then do the same to the top hinge.
Finally, it is time for the latch. Attach with bolts at a comfortable height and adjust the hinges accordingly. For regular maintenance, oil the gate hardware once a year and clean fencing fabric with a hose as necessary. For more helpful how-to videos like this one, visit https://www.Lowes.com/Videos.
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