Table of Contents
ToggleASTM A194 Grade 7 is a high-strength 5 percent chromium ferritic steel used to manufacture bolts, studs, stud bolts, and other fasteners for bolting pressure vessels, valves, flanges, and fittings, particularly in the power generation industry. The ASTM A194 standard includes alloy and stainless steel bolting for pressure vessels, valves, flanges, and fittings used in high temperature or high-pressure applications, as well as other special applications. There are many grades covered, including ferritic steels and austenitic stainless steels with designations such as B5, B6, B7, B8, B8M, and so on.
Element | Ferritic Steel |
---|---|
Chromium-Molybdenum Alloy Steel | |
CompositionA, % | |
Carbon | 0.37 – 0.49 |
Manganese | 0.65 – 1.10 |
Phosphorus | 0.035 max |
Sulfur | 0.04 max |
Silicon | 0.15 – 0.35 |
Chromium | 0.75 – 1.20 |
Molybdenum | 0.15 – 0.25 |
Grade | Completed Nuts | Sample Nut After Heat Treatment | |||
---|---|---|---|---|---|
Brinell Hardness, BHN |
Rockwell Hardness | Brinell Hardness, BHN, min |
Rockwell Hardness, HRB, min |
||
HRC | HRB | ||||
7 | 248 – 327 | 24 – 35 | … | 201 | 94 |
The city we supply ASTM A194 Grade 7 Bolt, Nuts, Washers: | |||||
Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
Bhubaneswar | Vijaywada | Firozabad | Bokaro Steel City | Rajkot | Bharuch |
Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Bareilly |
Varanasi | Haldia | Rourkela | Bangalore | Moradabad | Indore |
Visakhapatnam | Trivandrum | Pithampur | Dibrugarh | Angul | Gwalior |
Coimbatore | Kannur | Nagpur | Vadodara | Rudrapur | Noida |
Agra | Bhagalpur | Jamshedpur | Bhilai | Lucknow | Kanpur |
Thane | Bhopal | Sri City | Bareilly | Hosdurg | Pithampur |
Countries we supply and export ASTM A194 Grade 7 Bolt, Nuts, Washers worldwide: | ||||
Saudi Arabia | Oman | Europe | Netherlands | Sweden |
Kenya | Ireland | Israel | South Africa | Afghanistan |
Zimbabwe | Mexico | Canada | Venezuela | United Kingdom |
United States | New Zealand | Malaysia | Bangladesh | Turkey |
Singapore | Sri Lanka | Australia | Brazil | Germany |
France | Italy | South Korea | Poland | Belgium |