Stainless Steel ASME A194 B8 B8m Hexagonal Nut with Bolt
Originally approved in 1936, the ASME A194 specification is widely used in petroleum and chemical construction industries. This standard covers both inch and metric series products and includes fasteners for use in pressure vessels, valves, flanges, and fittings. Although commonly available in national coarse (UNC) thread pitches, for traditional applications, threads are specified at 8 threads per inch (TPI) for diameters above one inch. The ASTM standard applies to alloy steel and stainless steel bolting materials used in high temperature or high pressure environments.
A194 Grades
| 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 |
Elong, %, min |
RA % 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 - 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 |
321 max |
35 max |
| 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 |
| 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 - 20.0% |
16.0 - 18.0% |
| Nickel |
8.0 - 11.0% |
10.0 - 14.0% |
| Molybdenum |
 |
2.00 - 3.00% |
| 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 |
| Wide Range of Products |
We can supply various types of stainless steel hardware as needed. |
| Good Service |
We prioritize honesty and sincerity in all our client interactions. |
| High Quality |
Our strict quality control system ensures reliable and trustworthy products. |
| OEM Accepted |
Custom production based on your drawings or samples is available. |
| Fast Delivery |
Stock items can be delivered within 3 days, while custom orders take 7-15 days. |
| Low MOQ |
We support small order quantities to meet diverse business needs. |
| Sample Charges |
Sampling Time |
| Based on Your Request |
5-7 Days |
| Free for Existing Molds |
3 Days |
| Carton Size: 25*16*25CM |
| Wooden Pallet/Case Size: 110*90*80CM |
| Color Printed Boxes & Cartons can be customized according to customer requirements. |
Delivery:
| By Express |
1kg-50kg |
| By Air |
50kg-500kg |
| By Sea |
500kg or more |
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By Express (FedEx, UPS, DHL, TNT, EMS, etc.)
--- Advantage: Fast (about 7-10 days delivery), door to door service.
--- Disadvantage: Slightly expensive.
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By Air Transportation
--- Advantage: Faster than express, but slightly cheaper.
--- Disadvantage: You need to pick up the goods from the airport yourself.
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By Sea (Ocean) Transportation
--- Advantage: Much cheaper than express or air transport.
Disadvantage: Slower and you need to collect the goods from the destination port yourself.
Company Information:Hand Industrial Ltd was established in 2010 and is a professional manufacturer and supplier of stainless steel hardware. Our product range includes stainless steel bolts, threaded studs, machine screws, tapping screws, and self-drilling screws in materials such as SS 304, SS 316, SS 316L, SS 410, etc. We produce to DIN, ANSI, BS, ISO, JIS standards and offer OEM services. Our products are highly popular in Europe, Australia, North America, the Middle East, Southeast Asia, and some African countries.
We can supply different sizes of super alloy steel hex bolts, hex socket bolts, threaded studs, hex nuts, and plain washers.
We can also supply various sizes of SS hex bolts, hex socket bolts, threaded nuts, hex nuts, and plain washers.PET Bottle Blowing Machine
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