We manufacture ASTM A193 B7M studs are identical in chemistry to Grade B7 (quenched and tempered medium carbon alloy steel), but have lower strength requirements and require 100% hardness testing of all fasteners manufactured in the lot. Grade B7M bolts resist chloride, sulfide, and hydrogen stress corrosion cracking (SCC) and are frequently used in sour gas service.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7M | 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 |
|---|---|---|
| B7M | A194 Grade 2HM | 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 B7M 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 B7M 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
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