Wholesale OEM/ODM China Machinery Special Shape of Through Threaded Stud Bolt
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We often persist with the theory “Quality To start with, Prestige Supreme”. We are fully committed to delivering our clientele with competitively priced good quality items, prompt delivery and experienced support for Wholesale OEM/ODM China Machinery Special Shape of Through Threaded Stud Bolt, We Sincerely welcome consumers from everywhere in the entire world to go to us, with our multifaceted cooperation and operate jointly to build new markets, make win-win excellent foreseeabl...
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We often persist with the theory “Quality To start with, Prestige Supreme”. We are fully committed to delivering our clientele with competitively priced good quality items, prompt delivery and experienced support for Wholesale OEM/ODM China Machinery Special Shape of Through Threaded Stud Bolt, We Sincerely welcome consumers from everywhere in the entire world to go to us, with our multifaceted cooperation and operate jointly to build new markets, make win-win excellent foreseeable future.
We often persist with the theory “Quality To start with, Prestige Supreme”. We are fully committed to delivering our clientele with competitively priced good quality items, prompt delivery and experienced support for China Stud Bolts, Square Stud, We can meet the various needs of customers at home and abroad. We welcome new and old customers to come to consult & negotiate with us. Your satisfaction is our motivation! Allow us to work together to write a brilliant new chapter!
ASTM A193 A320 B8M Full Threaded Stud Bolts
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 B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M B8 Class 1 & 2, B8M Class 1 & 2
Finish: Plain, 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.
Grades
| 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 |
Mechanical Properties
| 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 |
Recommended Nuts and Washers
| 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 |
Testing Lab
Workshop
Warehouse
We often persist with the theory “Quality To start with, Prestige Supreme”. We are fully committed to delivering our clientele with competitively priced good quality items, prompt delivery and experienced support for Wholesale OEM/ODM China Machinery Special Shape of Through Threaded Stud Bolt, We Sincerely welcome consumers from everywhere in the entire world to go to us, with our multifaceted cooperation and operate jointly to build new markets, make win-win excellent foreseeable future.
Wholesale OEM/ODM China Stud Bolts, Square Stud, We can meet the various needs of customers at home and abroad. We welcome new and old customers to come to consult & negotiate with us. Your satisfaction is our motivation! Allow us to work together to write a brilliant new chapter!
