We manufacture ASTM A193 B7 Stud Bolts from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Grade B7 is the most common grade of A193 bolts used in construction. B7 threaded studs and short, headed bolts are readily available in the marketplace. Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance.
Note that coated bolts may not be able to withstand the high temperatures that uncoated B7 bolts can be subjected to.r High Pressure Service, or other Special Purpose Applications. Several grades are covered, including Ferritic Steels and Austenitic Stainless Steels designated B5, B8,B8M and so forth. Selection will depend upon design, service conditions, Mechanical Properties, and High Temperature Characteristics.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 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 |
| 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 | |
| B16 | Up to 2-1/2 | 125 | 105 | 18 | 50 |
| 2-5/8 - 4 | 110 | 95 | 17 | 45 | |
| 4-1/8 - 7 | 100 | 85 | 16 | 45 |
| Element | B7 (AISI 4140) | B8 (AISI 304) | B8M (AISI 316) | B16 (AISI 4140) |
|---|---|---|---|---|
| Carbon | 0.37 - 0.49% | 0.08% max | 0.08% max | 0.37 - 0.49% |
| Manganese | 0.65 - 1.10% | 2.00% max | 2.00% max | 0.65 - 1.10% |
| Phosphorus, max | 0.035% | 0.045% | 0.045% | 0.035% |
| Sulfur, max | 0.040% | 0.030% | 0.030% | 0.040% |
| Silicon | 0.15 - 0.35% | 1.00% max | 1.00% max | 0.15 - 0.35% |
| Chromium | 0.75 - 1.20% | 18.0 - 20.0% | 16.0 - 18.0% | 0.75 - 1.20% |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% | ||
| Molybdenum | 0.15 - 0.25% | 2.00 - 3.00% | 0.15 - 0.25% |
| Bolt Grade | Nuts | Washers |
|---|---|---|
| B7 | A194 Grade 2H | F436 |
| 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 |
we are supplier of ASTM A193 B7 Stud Bolts to Mexico, Angola, Bulgaria, Italy, Gambia, Afghanistan, Trinidad & Tobago, Macau, Hungary, India, Mongolia, Brazil, Denmark, Greece, Tunisia, Tibet, New Zealand, Ghana, Belarus, Thailand, Portugal, Finland, Chile, Estonia, United States, Zimbabwe, Ireland, Austria, Kuwait, Slovakia, Malaysia, South Africa, Indonesia, Bahrain, Iraq, Belgium, Azerbaijan, Romania, Croatia, Czech Republic, Nigeria, Bhutan, Bolivia, Spain, Switzerland, Namibia, Netherlands, Australia, Yemen, Peru, Kenya, Taiwan, Saudi Arabia, Morocco, Colombia, Oman, United Kingdom, Norway, Chile, Israel, Costa Rica, Lithuania, Philippines, Iran, Ecuador, South Korea, Kazakhstan, China, Egypt, Russia, Sweden, Venezuela, Jordan, Libya, Hong Kong, Japan, Gabon, Serbia, Algeria, Lebanon, Qatar, Singapore, Vietnam, Sri Lanka, France, Nepal, Ukraine, Argentina, Canada, Poland, Germany, United Arab Emirates, Turkey, Puerto Rico, Nigeria, Bangladesh
We are Suppliers of ASTM A193 B7 Stud Bolts to Kanpur, Faridabad, Navi Mumbai, Caracas, Visakhapatnam, Moscow, Algiers, Jakarta, Haryana, Noida, Mumbai, Seoul, Surat, Coimbatore, Jamshedpur, Singapore, Kolkata, Pimpri-Chinchwad, Mexico City, Manama, Los Angeles, Istanbul, Ahmedabad, Bangkok, Madrid, Petaling Jaya, Muscat, Ludhiana, Riyadh, Ankara, Dallas, Chennai, New York, Port-of-Spain, Thane, Kuala Lumpur, Santiago, Colombo, Vadodara, Abu Dhabi, Baroda, Indore, London, Vung Tau, Granada, Nashik, Edmonton, Ernakulam, Hyderabad, Gurgaon, Kuwait City, New Delhi, Lahore, Bogota, Al Jubail, Sydney, Pune, Perth, Houston, Courbevoie, Rajkot, Ho Chi Minh City, Cairo, Toronto, Ahvaz, Howrah, La Victoria, Al Khobar, Gimhae-si, Sharjah, Thiruvananthapuram, Dubai, Tehran, Busan, Rio de Janeiro, Jaipur, Ulsan, Bengaluru, Dammam, Chandigarh, Geoje-si, Karachi, Jeddah, Secunderabad, Calgary, Brisbane, Nagpur, Lagos, Melbourne, Atyrau, Ranchi, Hong Kong, Bhopal, Hanoi, Milan, Chiyoda, Montreal, Doha, Aberdeen
For a Standard or Special Fastener, we are at your service! We specialize in Xylan Coated Stud Bolts, those made from Stainless Steel and Non-Ferrous Alloys. Look to Savoy Piping Inc. for fine Products and Reliable Information. Contact us today for All your Fasteners Need