- Model NO.: ASTM 193
- Type: Hexagon Head
- Connection: Common Bolt
- Standard: DIN, GB, ANSI, BSW, JIS
- Customized: Welcome
- Transport Package: Box+Poly Wood Pallet/Box
- Origin: Wuxi, Jiangsu
- Material: Stainless Steel
- Groove: Hexagon
- Head Style: Hexagonal
- Grade: B8;B8m
- Trademark: Hande
- Specification: 1/4~2"; M6~M50
- HS Code: 731815
High-Quality Stainless Steel B8 B8m Stud Bolts
Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications. A193/A193M(A194/A194M) covers both inch and metric series products. The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature or high pressure 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 8Â 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.
A193 Grades
| B8 | Class 1Â Stainless steel, AISI 304, carbide solution treated. |
|---|---|
| B8M | Class 1Â Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2Â Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2Â Stainless steel, AISI 316, carbide solution treated, strain hardened |
A193 Mechanical Properties
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA %Â min | HBW | HRC |
|---|---|---|---|---|---|---|---|
| B8 Class 1 | All | 75 | 30 | 30 | 50 | 223 max | 35 max |
| B8M Class 1 | All | 75 | 30 | 30 | 50 | 223 max | 96 max |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 | 321 max | 35 max |
| 7/8 -Â 1 | 115 | 80 | 15 | 35 | |||
| 1-1/8 -Â 1-1/4 | 105 | 65 | 20 | 35 | |||
| 1-3/8 -Â 1-1/2 | 100 | 50 | 28 | 45 | |||
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 | 321 max | 35 max |
| 7/8 -Â 1 | 100 | 80 | 20 | 45 | |||
| 1-1/8 -Â 1-1/4 | 95 | 65 | 25 | 45 | |||
| 1-3/8 -Â 1-1/2 | 90 | 50 | 30 | 45 |
A193 Chemical Properties
| Element | B8 (AISI 304) | B8M (AISI 316) |
|---|---|---|
| Carbon | 0.08% max | 0.08% max |
| Manganese | 2.00% max | 2.00% max |
| Phosphorus, max | 0.045% | 0.045% |
| Sulfur, max | 0.030% | 0.030% |
| Silicon | 1.00% max | 1.00% max |
| Chromium | 18.0 -Â 20.0% | 16.0 -Â 18.0% |
| Nickel | 8.0 -Â 11.0% | 10.0 -Â 14.0% |
| Molybdenum | Â | 2.00 -Â 3.00% |
A193 Recommended Hardware
| Bolt Grade | Nuts | Washers |
|---|---|---|
| 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 |
Advantages
| Many products | Any type of stainless steel hardware can be supplied. |
| Good Service | We treat clients in great honest and sincere management is our top mission. |
| Good Quality | We have strict quality control system .Good reputation in the market. |
| OEM Accepted | We can produce as per your drawings or samples. |
| Shortest Delivery | We have large stock, 3 days for stock items,7-15days for production. |
| Low MOQ | It can meet your business very well. |
Sample Charge:
| Samples charge | Sampling time |
| According to your request | 5-7days |
| Free for Existing Mold | 3days |
Packing Information:
| Carton Size: 25*16*25CM |
| Wooden Pallet/Case Size: 110*90*80CM |
| Color Printed Box&Cartons can be made per customers' desire. |
Company Information:
Hand Industrial  Ltd is established in 2010, and one professional manufacturer and supplier of stainless steel hardware. Our products contains stainless steel bolts and thread studs, stainless steel machine screws,stainless steel tapping screws and self drilling screws in different material from SS 304,SS 316,SS 316L,SS 410,etc. We often make DIN. ANSI. BS. ISO. JIS standard and OEM service is available. Our products are very popular in European, Australia, North America, Mid,east, and South East Asia and some African countries.
We can supply different sizes of super alloy steel hex bolts\hex socket bolts\threaded studs\hex nuts\plain washers.
We can supply different sizes of SS hex bolts\hex socket bolts\threaded nuts\hex nuts\plain washers.
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