ASTM A193 Alloy GRADE B7 Fasteners

Manufacturer of SA194 2H Threaded Fastener in India

ASTM A193 Alloy Steel B7 Fasteners is a high-strength, high-temperature resistant alloy steel used for various fastening applications. Fasteners from this material are commonly used in construction, industrial, and mechanical settings, offering excellent durability and strength. ASTM A193 B7 Fasteners are manufactured from a low-carbon steel alloy that has been quenched and tempered to provide excellent mechanical properties. These fasteners come in various types, including bolts, screws, nuts, and studs. They are suited for high-pressure and high-temperature applications requiring a secure and reliable connection. The ASTM A193 B7 fasteners are often used in petrochemical, automotive, and aerospace industries, where strength and durability are of the essence. In addition, they offer excellent corrosion resistance, making them ideal for use in harsh environments where exposure to chemicals and corrosive elements is common.


ASTM A194 Gr 2H Fasteners are heavy-duty fasteners made from high-strength low-alloy steel. They are commonly used in many construction and structural applications, including bridges, buildings, and other vital infrastructure. These fasteners comprise a variety of bolts, nuts, washers, and studs, which are used in various commercial and industrial applications. ASTM A194 Gr 2H Fasteners are made to sustain high pressure, high temperature, and high vibration environments. ASTM A194 Gr 2H Fasteners have excellent resistance to corrosion, heat, and wear and tear, making them suitable for use in demanding applications. They are specifically designed to be used in applications where high-stress loads are common, making them an excellent choice for connection and fastening in industrial equipment and machinery. We manufacture these ASTM A194 Gr 2H Fasteners in our well-equipped manufacturing unit, updated with the latest machinery and modern tools.


These fasteners are used in many industries, including petrochemicals, refineries, construction, shipbuilding, and heavy-duty equipment manufacturing. They are corrosion-resistant and can be used in harsh environments, such as saltwater or high humidity. ASTM A194 Gr 2H Fasteners have high strength and durability, which allows them to provide a reliable and long-lasting connection. We are producing perfectly suitable products for our esteemed buyers. We offer these ASTM A193 Gr B7 high tensile Fasteners with all beneficial features and services.


ASTM A193 Alloy Steel Grade B7 Fasteners are available in various sizes ranging from 1/4" to 4" in diameter & up to 72" in length. The length of the fasteners may vary depending on the type of product, such as bolts, nuts, or studs. The dimensions of these fasteners conform to the ASTM A193 standard.

ASTM A194 Alloy Steel Grade 2H Fasteners are commonly used in high-pressure & high-temperature applications, such as in the petrochemical, power generation & oil and gas industries. They are also suitable for use in high-stress applications.

The maximum temperature limit for ASTM A194 Alloy Steel Grade 2H Fasteners is 450°C.

Specification of Alloy Steel Grade B7/2H Fasteners

Spec bag

Specifications: ASTM A193,A194 / ASME SA193,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 B7/2H Fasteners

Alloy Steel B7/2H Bolts

ASTM A193 Gr. B7 / A194 Gr. 2H Bolt

Alloy Steel B7/2H Nuts

ASTM A193 Gr. B7 / A194 Gr. 2H Nuts

Alloy Steel B7/2H Stud Bolts

ASTM A193 Gr. B7 / A194 Gr. 2H Stud Bolt

Alloy Steel B7/2H Washers

ASTM A193 Gr. B7 / A194 Gr. 2H Washer

Alloy Steel Gr.B7/2H Fasteners Chemical Composition

Grade C Mn P S Si Cr Mo
B7 0.37-0.49 0.65-1.10 0.035 0.04 0.15-0.35 0.75-1.20 0.15-0.25
2H 0.40 1.00 0.040 0.050 0.40 - -

Mechanical Properties of Alloy Steel B7/2H Fasteners

Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B7 / 2H 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