ASTM A193 A320 B8 All 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.| 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 |
Websit: https://www.jmtornillo.com
Ahora me gustaría presentarles nuestro producto Perno Arado.
Los pernos arados de estándares IFI y DIN son disponibles para nosotros.
El mayor de los grados son SAE J429 Grado 2, grado 5, grado 8, ASTM A307 y clase 8.8, clase 10.9, clase 12.9, este es perno arado Clase 12.9 de óxido negro, pueden ver la marca aqui.
Tambien fabricamos pernos no estándares según sus dibujos o muestras.
Shanghai Jian&Mei es una empresa profesional que produce pernos, nuestro productos son aplicados principalmente en las areas Acero estructural, Edificio metal, Petróleo&Gas, Torre&Polo, Viento, Energía, Máquina mecánica, automóvil, Decoración etc.
Ofrecemos todos los tamaños.
El material sería acero al carbono, acero de aleación, acero inoxidable y cobre.
Grados disponibles de pernos son SAE J429 Gr 2,5,8, ASTM, A307,A490,ASTM A193 B7 and class 4.8 6.8 8.8,10.9,12.9,
El acabado sería Zinc, Zinc amarillo, Óxide negro, HDG etc.
Exportamos Perno Arado con alta calidad al mercado américa más de 8 años y nos disfrutamos muy bueno reputación, somos su prroveedor reliable de elementos de sujeción.
No duden en contactarno en cualquier momento.
Shanghai Jian & Mei Industry and Trade Co., Ltd
Rm.27202, No.295 South Lingyan Road, Pudong,Shanghai,P.R.C, Code:200126
Tel: 0086-21-33328690-8058
Fax: 0086-21-68413263
English Web：www.jm-industry.com Websit: https://www.jmtornillo.com
Contact: Mrs.Xarella Huang
Email: Jminfo@jm-industry.com
Websit: https://www.jm-industry.com