NEWS



26

2024

-

02

Innovative B7 threaded rod changes construction industry

2024-02-26

Author:


In a groundbreaking development designed to transform the construction industry, ASTM A193 Grade B7 threaded rod is the choice. B7 threaded rod is a high-strength bolt material manufactured in accordance with ASTM A193/A193M standards. Grade B7 represents the specific chemical composition and heat treatment process. This stud is mainly made of AISI4140 material. This type of raw material is known for its strength and wear resistance at high temperatures. B7 threaded rod can withstand extreme temperatures and pressures. Therefore, it is often used in the construction field, boilers, heat exchangers, oil refining equipment, and other fastening applications that require high pressure and high temperature environments. The mechanical properties of B7 studs include yield strength, tensile strength, elongation and impact value. For example, under normal conditions, the tensile strength of B7 threaded rod needs to meet the minimum requirement of 125KSI, and maintain good toughness and wear resistance within the specified temperature range.

B7 threaded rod

One of the main advantages of the B7 threaded rod is its unparalleled strength. The threaded rod has high tensile strength and corrosion resistance and is able to withstand heavy loads and harsh environmental conditions, making it ideal for critical structural applications.
In addition, B7 threaded rods offer unparalleled versatility and are suitable for a variety of construction projects, from commercial buildings to industrial facilities. Its compatibility with different materials and components allows for flexible and efficient installation, saving time and resources for the construction team.
The introduction of the B7 threaded rod represents a significant advancement in the construction sector and promises to improve safety, efficiency and performance on projects of all sizes. Builders and contractors are eager to take advantage of the benefits of this innovative product to raise the standards of construction practice and achieve outstanding results.

A193 Mechanical Property Requirements 

Grade

Diameter, inch

Minimum

Tempering

Temperature,

°F

Tensile

Strength ksi

Yield Strength, 0.2 % offset, ksi

2 in Elongation %

Reduction

of Area, %

Hardness, max

min

min

min

min

Brinell

Rockwell

B7

Up to 2-1/2

1100

125

105

16

50

321 HBW

35 HRC

Over 2-1/2 to 4

1100

115

95

16

50

321 HBW

35 HRC

Over 4 to 7

1100

100

75

18

50

321 HBW

35 HRC

 

A193 Chemical Composition Requirements (%)

A193 Recommended Accessories A193

Bolt Grade

Nuts

Washers

B7

A194 Grade 2H

F436