ASTM A320/A320M L7 Tap End Studs Double End Studs
Standard: IFI-136, ASME B16.5
Inch Size: 1/4”-2.1/2” with various lengths
Metric Size: M6-M64 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 A320
Scope Originally approved in 1948, the ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. Like the ASTM A193 specification, unless otherwise specified, the 8UN thread series is specified on fastener larger than 1” in diameter. Below is a basic summary of a few of the common grades within the ASTM A320 specification. A number of other less common grades of ASTM A320 exist, but not covered in the description below.| L7 Alloy steel | AISI 4140/4142 Quenched and tempered |
| L43 Alloy steel | AISI 4340 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 |
| Grade | Size | Tensile, ksi, min | Yield, ksi, min |
Charpy Impact 20-ft-lbf @ temp |
Elong, %, min | RA, %, min |
| L7 | Up to 21/2 | 125 | 105 | -150° F | 16 | 50 |
| L43 | Up to 4 | 125 | 105 | -150° F | 16 | 50 |
|
B8 Class 1 |
All | 75 | 30 | N/A | 30 | 50 |
|
B8M Class 1 |
All | 75 | 30 | N/A | 30 | 50 |
|
B8 Class 2 |
Up to 3/4 | 125 | 100 | N/A | 12 | 35 |
| 7/8 - 1 | 115 | 80 | N/A | 15 | 35 | |
| 11/8 - 11/4 | 105 | 65 | N/A | 20 | 35 | |
| 13/8 - 11/2 | 100 | 50 | N/A | 28 | 45 | |
|
B8M Class 2 |
Up to 3/4 | 110 | 95 | N/A | 15 | 45 |
| 7/8 - 1 | 100 | 80 | N/A | 20 | 45 | |
| 11/8 - 11/4 | 95 | 65 | N/A | 25 | 45 | |
| 13/8 - 11/2 | 90 | 50 | N/A | 30 | 45 |
| Grade | Nuts | Washers |
| L7 | A194 Grade 4 or 7 | F436 |
| L43 | A194 Grade 4 or 7 | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8, strain hardened | SS304 |
| B8M Class 2 | A194 Grade 8M, strain hardened | SS316 |
Classicbond Rubber Roofing EPDM
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Roofing membranes carry both a manufactures warranty against any latent defects or a guarantee offered by the installer or roofing company — these vary on time period of warranty cover versus type of roofing application. Roofing materials options include single ply rubber EPDM, PVC and TPO roofing membranes.
Classicbond single ply rubber roofing EPDM (ethylene propylene diene monomer) is an extremely tough and hardwearing 1.14mm roofing membrane stocked and sold by Flexible Roofing Products. Classicbond single ply EPDM rubber flat roofing cover is not only affordable but it does not require specialist tools for its installation. Classicbond EPDM 1.14mm rubber roofing is typically guaranteed for forty years for residential rubber roofing of for commercial business premises. Classicbond EPDM rubber roofing membrane is produced in seamless single ply sections ensuring reliability and water resistance. ClassicBond EPDM sold by Flexible Roofing Products will not deteriorate over the years giving complete confidence that your flat roof will remain protected for decades by Classicbond EPDM single ply roofing rubber.
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Unlike the usual traditional roofing systems, Classicbond EPDM rubber roofing membranes for flat roofing applications are installed without any heat or flames, making it quick, easy and safe. Classicbond EPDM rubber roofing is totally flexible EPDM rubber membrane and will easily mould around all the contours of the flat roof. Correctly installed, rain will merely bounce off the flat roofing rubber membrane leaving the building completely dry internally. Classicbond single ply EPDM rubber roofing sold by Flexible Roofing Products through our website or call 01594 829297
Applied to cohesive failure tests and dental resins, it was developed with a new manufacturing technology, especially developed for this kind of application.
Manufacturing material is stainless steel and this support for cohesive failure tests doesn’t use glue (adhesive) to fix the specimens.
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