What are Alloy Steel Grade 7 Fasteners, and what makes them different from other
fasteners?
Alloy Steel Grade 7 Fasteners
are specialized fastening components made from a specific type of alloy steel known as Grade
7. These fasteners are designed to exhibit exceptional performance in high-temperature and
high-pressure environments, making them ideal for demanding applications where standard
fasteners may fail. Alloy Steel Grade 7 Fasteners have unique composition and properties,
apart from other types of fasteners.
Grade 7 alloy steel contains chromium, molybdenum, and other elements contributing to its
remarkable strength, corrosion resistance, and heat resistance. These fasteners are
specifically engineered to withstand extreme temperatures, such as those encountered in
power generation plants, petrochemical industries, and high-pressure steam systems. Their
enhanced mechanical properties and superior resistance to creep and oxidation make Alloy
Steel Grade 7 Fasteners a preferred choice for critical joints and connections that require
long-term reliability and durability in challenging operating conditions.
What are the common applications and industries where Alloy Steel Grade 7 Fasteners
are frequently used?
Alloy Steel Grade 7 Fasteners find wide-ranging applications across various
industries that demand reliable and durable fastening solutions in high-temperature and
high-pressure environments. One of the prominent sectors where these fasteners are commonly
used is the power generation industry, including both conventional and nuclear power plants.
They are utilized in critical components such as boilers, steam turbines, and superheaters,
providing secure and robust connections capable of withstanding extreme temperatures and
pressures.
Alloy Steel Grade 7 Fasteners are frequently employed in the oil and gas industry for
applications involving pipelines, refineries, and offshore platforms. These fasteners offer
excellent resistance to corrosion, fatigue, and stress cracking, making them suitable for
use in harsh and corrosive environments. Other sectors where Alloy Steel Grade 7 Fasteners
are prevalent include petrochemical plants, chemical processing facilities, and industrial
furnaces, where their high-temperature stability and strength are crucial for ensuring
operational integrity and safety.
Manufacturing Process Of Alloy Steel Grade 7M Fasteners
Forging
Forging is a manufacturing process that involves shaping metal through
the application of force.
Machining & Drilling
Both machining and drilling play crucial roles in the manufacturing of
components across a wide range of industries.
Heat Treatment
Heating the metal to a temperature below the critical range and then slow
cooling
Quality Control & Marking, Identification
Quality control and marking are essential aspects of manufacturing and
production processes across metal industries.
Packaging and Delivery
To reach their destination in pristine condition, we employ careful
packaging techniques.
Alloy Steel Grade 7M Bolts and Nuts Specification
Standard
ASTM A194 / ASME SA194
Bolt / Screw Size
M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size
M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size
M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size
M1.6 – M12
Self Tapping Screw Size
No.2 – No. 14
Length
3 mm to 200 mm
Threads
UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
DIN : DIN 934, DIN 931, DIN 970, DIN 933
UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
ISO : JIS standards, ISO 4033, ISO 4032,
ANSI – American National Standards Institute
ASME B18.5
ANSI B 28.2.4 1M
as per defined in ASME B16.5 standard Stud Bolt length
ANSI B 18.2.4 2M
as per defined in ASME B18.2.2 Hex nuts
Dimensions
DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads
Unless otherwise specified, the threads shall be rolled or cut and tapped
horizontally or vertically
Test Certificate
as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production Process
M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting
element machining and CNC
Types
Bolts, Nuts, Stud Bolts, Washers, Threaded Rod, Anchor Fasteners, Eye Bolt,
Stud, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation
Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts
etc.
Chemical Composition of Alloy Steel Grade 7M Fasteners
Alloy Steel GR 7M
C
Mn
P
S
Si
Cr
Mo
0.37 - 0.49
0.65 - 1.10
0.035
0.04
0.15 - 0.35
0.75 - 1.20
0.15 - 0.25
Mechanical Properties of Alloy Steel Grade 7M Fasteners
Specification
Marking
Nom. Size, In.
Tempering Temp. °F
Proof Load Stress, ksi
Hardness
Min
Max
A194 Gr 7M
7M
1/4 - 4
1100
150
B159
B237
Types Of Alloy Steel Grade 7M Fasteners
Alloy Steel Grade 7M Nuts
Alloy Steel Grade 7M Bolts
Chrome Moly Gr 7M Screw
Grade 7M Alloy Steel Washers
CrMo Gr.7M Stud Bolt
Alloy Steel Grade 7M Anchor Bolts
Gr 7M Alloy Steel Threaded Rod
Alloy Steel Grade 7M Heavy Hex Bolts
High Pressure Steel Gr 7M Hex Nuts
Other Types Of Alloy Steel Grade 7M Fasteners
Alloy Steel Grade 7M Fasteners
Alloy Steel Gr.7M Bolts
Chrome Moly Gr 7M Bolts and Nuts
Alloy Steel Gr.7M Fasteners
ASTM A194 Alloy Steel Grade 7M Washers
Alloy Steel Grade 7M Nuts
Alloy Steel Gr 7M Square Nuts
Alloy Steel Grade 7M Hex Head Bolts
Alloy Steel Grade 7M Flat Washer
Alloy Steel Gr.7M Nut Bolt
High Pressure Steel Gr 7M Fasteners
CrMo Grande 7M Fasteners
Chrome Moly Gr 7M Machine Screws
Grade 7M Alloy Steel U Bolts
Alloy Steel Gr.7M Industrial Fasteners
Chrome Moly Gr.7M Wing Nuts
Alloy Steel Grade 7M Allen Cap Screw
ASTM A194 Alloy Steel Gr 7M Coupling Nuts
Alloy Steel Gr 7M Plain Washer
Alloy Steel Gr 7M Screw
CrMo Grade 7M Self Locking Nuts
Alloy Steel Gr.7M U Bolts
Chrome Moly Gr 7M Spring Washer
Chrome Moly Gr 7M Heavy Hex Nuts
Alloy Steel Grade 7M Ogee Washer
Grade 7M Alloy Steel Hex Bolt
Alloy Steel Grade 7M Double Ended Studs
Alloy Steel Grade 7M Nuts And Bolts
Ask Free Sample of Alloy Steel Grade 7M Bolt, Nut, Screw,
Stud Bolt, Washer Please Call On
+91 9594327775 Or Mail Us On [email protected]
Export & Supply Destination of Alloy Steel Gr 7M Fasteners
Europe
Asia & Middle East
Africa
America
Oceania
Countries - Luxembourg, Russia, Spain, Ukraine,
Finland, Denmark, Belgium, Malta, Austria, Bulgaria,
Switzerland, Sweden, Liechtenstein, Monaco, Ireland, France,
Turkey, Poland, Norway, Azerbaijan, United Kingdom, Estonia,
Italy, Netherlands, Belarus, Croatia, Germany, Romania,
Hungary, Slovakia, Serbia, Greece, Moldova, Portugal,
Latvia, Czechia/Czech Republic, Cyprus, Lithuania.
Cities - Seville, Gothenburg, Malmö, Athens, Lyon,
Aarhus, Budapest, Turin, Kaunas, Augsburg, Wrocław, Espoo,
Warsaw, Alicante, Poznań, Nantes, Bratislava, Dortmund,
Zaragoza, Frankfurt am Main, Bari, Marseille, Łódź, Genoa,
Palermo, Plovdiv, Cluj-Napoca, Kraków, Lublin, Szczecin,
Constanța, Naples, Las Palmas, Bremen, Karlsruhe, Amsterdam,
Bilbao, Florence, Galați, Gdańsk, Hamburg, Nice, Prague,
Cologne, Nuremberg, Dublin, Varna, Copenhagen, Dresden,
Valencia, Tallinn, Leipzig, Duisburg, Sofia, Iași, Sintra,
Munich, Brno, Düsseldorf, Hanover, Rotterdam, Bologna,
Berlin, Lisbon, Stockholm, Utrecht, Wuppertal, Palma de
Mallorca, Bielefeld, Thessaloniki, Barcelona, Vilnius, Vila
Nova de Gaia, Toulouse, Bochum, Bydgoszcz, Bonn, Madrid,
Paris, Córdoba, Stuttgart, Essen, Antwerp, Málaga, Zagreb,
Rome, Bucharest, Mannheim, Vienna, Murcia, The Hague,
Münster, Riga, imișoara, Helsinki, Milan.
Countries - Saudi Arabia, Iran, Iraq, Nepal, South
Korea, Armenia, Bahrain, Azerbaijan, Turkey, Sri Lanka,
Kuwait, Vietnam, Egypt, Bhutan, British, Hong Kong, Jordan,
Kyrgyzstan, Israel, Oman, Macau, India, Philippines, North
Korea, Japan, Mongolia, Maldives, Singapore, Myanmar,
Afghanistan, Malaysia, Russia, United Arab Emirates, China,
Bangladesh, Taiwan, Lebanon, Thailand, Indonesia, Qatar.
Cities - Faisalabad, Kabul, Changsha, Lucknow,
Peshawar, Davao City, Riyadh, Chelyabinsk, Phnom Penh, Pune,
Manila, Caloocan, Hyderabad, New Taipei City, Yekaterinburg,
Krasnoyarsk, Chennai, Astana, Daegu, Shanghai, Zhongshan,
Almaty, Wenzhou, Shymkent, Chengdu, Mumbai, Taichung,
Vadodara, Kawasaki, Busan, Kochi, Quezon City, Kolkata,
Yerevan, Hyderabad, Omsk, Shantou, Yokohama, Bangkok, Kuala
Lumpur, Dubai, Sapporo, Khulna, Tianjin, Suzhou, Foshan,
Jeddah, Novosibirsk, Guangzhou, Ahmedabad, Bandung, Dhaka,
Istanbul, Hangzhou, Pyongyang, Rawalpindi, Tainan, Tehran,
Medan, Xiamen, Shenzhen, Xi'an, Seoul, Bengaluru, Taoyuan,
Quanzhou, Nagpur, Taipei, Lahore, Beijing, Hanoi, Baku,
Nanjing, Wuhan, Izmir, Ho Chi Minh City, Zhengzhou, Delhi,
Incheon, Surabaya, Chittagong, Osaka, Zunyi, Kyoto, Yangon,
Shenyang, Hong Kong, Ranchi, Chongqing, Ankara, Baghdad,
Surat, Tbilisi, Kobe, Jaipur, Hefei, Kaohsiung, Tokyo,
Jakarta, Dongguan, Fukuoka.
Countries - Saint Lucia, Barbados, Guyana, Mexico,
Colombia, United States of America, Dominican Republic,
Paraguay, Jamaica, Nicaragua, Grenada, Ecuador, Uruguay,
Guatemala, Belize, El Salvador, Suriname, Dominica,
Honduras, Argentina, Chile, Venezuela, Peru, Trinidad and
Tobago, Canada, Haiti, Bolivia, Panama, Costa Rica, Brazil,
Bahamas, Antigua and Barbuda, Saint Vincent and the
Grenadines, Cuba.
Cities - Puebla, Belo Horizonte, Campinas, Havana,
Cali, São Gonçalo, Santiago, Edmonton, Montevideo, Mexico
City, Rosario, Houston, Lima, Dallas, Columbus, Medellín,
Barquisimeto, Jacksonville, São Luís, Zapopan, El Alto,
Mérida, Maracaibo, Ciudad Guayana, Goiânia, Natal, Duque de
Caxias, Fort Worth, Philadelphia, San Diego, Austin,
Brasília, Valencia, Hermosillo, Tegucigalpa, Calgary,
Guarulhos, Indianapolis, São Paulo, New York, San Francisco,
Salvador, Tijuana, Chicago, Quito, Ciudad Juárez, Charlotte,
Campo Grande, Managua, Acapulco, Phoenix, Toronto, Ecatepec,
Montreal, Guayaquil, Guatemala City, Bogotá, San Antonio,
Nezahualcóyotl, Manaus, Monterrey, Recife, Córdoba, Santa
Cruz, Fortaleza, Curitiba, Caracas, Ottawa, Buenos Aires,
Rio de Janeiro, Trujillo, Barranquilla, Guadalajara, Denver,
Los Angeles, Chihuahua, Santo Domingo, San Jose, Belém,
León, Port-au-Prince, Porto Alegre.
Countries - Papua New Guinea, Marshall Islands,
Kiribati, Micronesia, Samoa, Solomon Islands, Tonga,
Australia, New Zealand, Tuvalu, Vanuatu, Nauru, Palau, Fiji.