What is ASTM A193 Grade B7 / Grade B7 M Fasteners ?

Sumit Impex is a carbon steel ASTM A 193 GR B7 fastener exporter and manufacturer, who shows a strong sense of empathy with gases that include nitrogen, oxygen, and hydrogen. Our ASTM A193 Carbon Steel GR B7 Stud Bolts is produced using the finest steel and checked on all quality limits at a cost-effective price. We sell this range of ASTM A193 Carbon Steel GR B7 screws in outstanding designs and also custom designs to provide a quality approved set of these items, as per the specifications provided by our valued customers.The ASTM A193 standard specifications shall be used in high-temperature, high-pressure or other special applications for alloy steel and stainless steel bolts. For bolted bolts used in high-pressure or high temperature environments equivalent, ASTM A194 has the standard specification for carbon and alloy steel nuts. ASTM A193 and A194 Glaser and Associates bolts and pins are available to meet different design conditions, operating conditions, mechanical properties and high temperature requirements in a range of classes including B7, B16 B8 and B8M. The U.S. Association of State Highway and Transport Officials model AASHTOM-292 is also protected by ASTM A194.

India’s Largest astm a193 gr b7 stud bolt, a193 b7 bolts, a193 b7 studs, B7 Fasteners, B7 Nuts, A193 Gr. B7 Threaded Rod suppliers in mumbai, India

Keep bulk stock of astm a193 grade b7 stud bolts, astm a193 grade b7 anchor bolts, astm-a193 gr b7 hex bolt at best price in India.

The bolts and fiberglasses of ASTM A193 Grade B7 are made from a chromium-molybdenum steel and are tightened and tempered to produce the necessary mechanical properties (strength). Grade B7 is the most commonly used grade for the production of A193 bolts. B7 bolts are readily available on the market and short-headed bolts.

Bolts of class B7 are commonly used in connections to the tube flange. The bolts are normally bought and sold in a plain, naked metal finish and are generally galvanized, zinc-plated, Xylan-plated, PTFE-coated, or otherwise laid for resistance to corrosio.

ASTM A193 Grade B7 / Grade B7 M Fasteners Specifications

Grade ASTM A193 Grade B7 / Grade B7 M Fasteners
Specification ASTM A 193 ASME SA 193
Standard  DIN, ASTM, BS and all International Standards
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length 3 mm to 200 mm
Form Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.
Application Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants.
Grade Description Diameter Tensile Strength, min. Yield Strength, min. Hardness, max. Marking
ASTM A193 B7 Chromium-Molybdenum 2 1/2” and under 125 105 321 HB or 35 HRC B7
over 2 1/2” to 4” 115 95 321 HB or 35 HRC
over 4” to 7” 100 75 321 HB or 35 HRC
Grade C Mn Si P S Ni Cr Mo
B7 (AISI 4140) 0.37 – 0.49% 0.65 – 1.10% 0.15 – 0.35% 0.035% 0.040% 0.75 – 1.20% 0.15 – 0.25%
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

Other Products

ASTM A193 B7 Flat Washers ASTM A193 B7 Pozi Csk Machine Bolts
Hex Head Bolts ASTM A193 B7 Nuts and Bolts
ASTM A193 B7 Hex Head Bolts ASTM A193 B7 Coupling Nut
ASTM A193 B7 Square Bolts ASTM A193 B7 Star Bolts
ASTM A193 B7 Square Bolts ASTM A193 B7 U Bolts
ASTM A193 B7 U Bolts ASTM A193 B7 U Bolts

ASTM A193 Grade B7 / Grade B7 M Fasteners Price List

  • ASTM A193 B7 Hex Bolts
    US $1000-2500 / Ton
  • ASTM A193 B7 Flat Bolts
    US $2000-3000 / Ton
  • ASTM A193 B7 Hex Bolts
    US $1.5-4.5 / Kilogram
  • ASTM A193 B7 Flat Bolts
    US $1800-2300 / Ton
  • ASTM A193 B7 Hex Head Bolts
    US $1550-2400 / Ton
  • ASTM A193 B7 Hex Head Set screws
    US $1800-2300 / Ton
  • ASTM A193 B7 Hex Head Flange Bolts
    US $1300-2600 / Metric Ton


We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel Sheet Manufacturers

Country we serve / City we deliver

Spain, Trinidad & Tobago, South Africa, Costa Rica, Netherlands, Colombia, Tibet, Afghanistan, Greece, Mongolia, Austria, United Arab Emirates, Angola, India, Jordan, Chile, Mexico, Namibia, Japan, Israel, Macau, Argentina, Ghana, Kuwait, Ecuador, Switzerland, Nigeria, Ukraine, Bulgaria, Poland, South Korea, Chile, United States, Hungary, Bhutan, Norway, Kazakhstan, Belarus, Czech Republic, Morocco, Italy, Denmark, Venezuela, Lebanon, Zimbabwe, Belgium, Slovakia, Yemen, Puerto Rico, Algeria,Sri Lanka, New Zealand, Libya, Iraq, Nepal, Romania, Egypt, Ireland, Kenya, Saudi Arabia, Russia, Indonesia, Singapore, Hong Kong, Peru, Qatar, Azerbaijan, Bahrain, Germany, Australia, United Kingdom, Pakistan, Serbia, Gabon, Taiwan, Iran, Thailand, Oman, Vietnam, Lithuania, Portugal, Finland,Tunisia, Gambia, Brazil, Bangladesh, Turkey, Malaysia, Croatia, France, Sweden, Estonia, China, Philippines, Canada, Bolivia, Nigeria

& Riyadh, Moscow, Toronto, Geoje-si, Karachi, Istanbul, Courbevoie, Milan, Chiyoda, Thane, Aberdeen, Brisbane, Lagos, Lahore, Vung Tau, Faridabad, Ho Chi Minh City, Colombo, Santiago, Jaipur, Jeddah, Ludhiana, Doha, Haryana, Vadodara, Atyrau, Petaling Jaya, Ahvaz, Ernakulam, Gimhae-si, Surat, Sydney, Bengaluru, Mexico City, Ulsan, Madrid, Bangkok, Pimpri-Chinchwad, Thiruvananthapuram, New York, Bhopal, Howrah, Coimbatore, Chennai, Edmonton, Los Angeles, Rajkot, Mumbai, Sharjah, Cairo, Seoul, London, Jakarta, Abu Dhabi, Dammam, Nashik, Dubai, Hyderabad, Houston, Manama, Calgary, Granada, Rio de Janeiro, Navi Mumbai, Al Khobar,Kanpur, Hong Kong, Nagpur, Port-of-Spain, Ankara, Baroda, Algiers, Ahmedabad, Perth, Gurgaon, Singapore, Busan, Montreal, Al Jubail, Secunderabad, Ranchi, Jamshedpur, New Delhi, Tehran, Kolkata, Caracas, Melbourne, Kuwait City, Dallas, Pune, Muscat, Noida, Indore, Hanoi, Chandigarh, La Victoria, Kuala Lumpur, Bogota, Visakhapatnam