ASTM A320 Grade L7 Fasteners

SA194 Gr L7 Heavy Duty Fastener Manufacturer in India

Fasteners are one of the most significant components in various industries, contributing significantly to the efficiency and safety of machines and equipment. Two popular fastener types globally recognized for reliability and durability are ASTM A320 L7 and ASTM A194 L7. ASTM A320 L7 Fasteners are essential in piping, chemical, and petroleum industries. This alloy is carefully engineered to help higher pressure and temperature ratings withstand high temperatures in extreme environments, improving such industries' safety. A320 L7 fasteners come in various shapes and sizes, including studs, bolts, nuts, washers, and screws, making them a go-to-fastener option for many professionals.


Regarding ASTM A194 L7 Fasteners , this alloy type is designed primarily to withstand high-pressure environments. As a result, they are a common fastener in the oil, gas, and chemical industries. A194 L7 fasteners are known for their anti-corrosive properties and are compatible with a wide range of high-temperature applications. These fasteners come in different shapes and sizes, including nuts, bolts, washers, and studs.
The benefits of using ASTM A320 L7 Fasteners are numerous and varied. One of the significant advantages of A320 L7 fasteners is their high strength, which makes them the perfect option for environments with high-pressure or high-temperature ratings. The other crucial benefit is their compatibility with extreme environments, which makes them ideal for use in various industries.


Another benefit of the ASTM A194 L7 Fasteners is that they are exceptionally corrosion-resistant. This attribute is incredibly important as certain industries, especially marine and chemical, work in harsh environments with high exposure to saltwater and gasses. Their excellent strength properties make these fasteners a wise choice for manufacturing equipment under high-stress conditions.
The traditional fasteners are handy, ensuring resilience and security on the structures they hold. Our excellent quality products are widely used in high-end industrial and engineering projects. Our ASTM A320 Grade L7 high tensile fasteners offer many excellent features, such as precise design, smooth performance, longer service life, robustness, accurate size, and corrosion-proof. We are offering premium quality ASTM A194 -7 Nuts and Washers in different sizes and dimensions as per our clients' demanded features and specifications.


Specification of Alloy Steel Gr.L7/7 Fasteners

Spec bag

Specifications: ASTM A320,A194 / ASME SA320,SA194

Standard: DIN, ASTM, BS and all International Standards

Length: 3 mm to 200 mm

Size: M3 - M56 | 3/6" to 2" | Custom Sizes

Heat Treatment: Annealing, Stress Relieving, Case Hardening, Quenching and Tempering.

Types of Alloy Steel Grade L7/7 Fasteners

Alloy Steel Grade L7/7 Bolts

ASTM A320 Gr. L7 / A194 - 7 Bolt

Alloy Steel Grade L7/7 Nuts

ASTM A320 Gr. L7 / A194 - 7 Nuts

Alloy Steel Grade L7/7 Stud Bolts

ASTM A320 Gr. L7 / A194 - 7 Stud Bolt

Alloy Steel Grade L7/7 Washers

ASTM A320 Gr. L7 / A194 - 7 Washer

Alloy Steel Grade L7/7 Fasteners Chemical Composition

Grade C Si Mn P S Cr Mo Al
Grade
L7/L7M
0,38 0,15 0,75 - - 0,80 0,15 0,020
0,48 0,35 1,00 0,035 0,040 1,10 0,25 0,050

Mechanical Properties of Alloy Steel Gr L7 / 7 Fasteners

Specification Marking Nom. Size, In. Tempering Temp. °F Proof Load Stress Hardness
A194 Grd 7 7 1/4 - 4 1100 175 / 150 C24 / B159 C38 / B237

The heat treatment process for ASTM A194 Alloy Steel Grade 7 Fasteners involves heating the fasteners to a temperature between 975 & 1050°C, followed by quenching in water or oil. This is then followed by tempering at a temperature between 540 and 650°C.

ASTM A194 Alloy Steel Grade 7 Fasteners are commonly used in high-pressure & high-temperature applications, such as in the petrochemical & power generation industries. They are also suitable for use in high-stress applications.

The heat treatment process for ASTM A194 Alloy Steel Grade 7 Fasteners involves heating the fasteners to a temperature between 975 & 1050°C, followed by quenching in water or oil. This is then followed by tempering at a temperature between 540 and 650°C.