• B7 Studs: B7 is a common grade of threaded rod or stud bolt. It is often made from alloy steel and is known for its high tensile strength and resistance to corrosion. B7 studs are commonly used in applications where high-strength fastening is required, such as in structural and industrial settings.

    • 2H Nuts: 2H is a specific grade of heavy hex nuts. These nuts are typically use
    • d in conjunction with B7 studs. The “2H” designation indicates that they meet certain specifications for strength and durability. Heavy hex nuts provide a larger gripping surface and are designed to withstand higher loads compared to regular hex nuts.

 

When using B7 studs with 2H nuts, it’s important to ensure that the nut and stud are of the appropriate size and grade for the specific application. Additionally, proper torquing and fastening procedures should be followed to ensure a secure and reliable connection.

Size Range (mm) Grade Standard
Diameter Length Specification
1/2″ TO 3″
M18 to M80
3″ TO 1 Meter
50MM TO 1000MM
Grade A , Grade B, B7,B7M, L7 , L7M, B16 ASTM A 193 , ASTM A 307 , ASTM A 370 , ANSI B18.2.1, DIN 975/976 and AS PER DRAWINGS

Chemical Properties:

Grade Material Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum
% by weight % by weight % by weight % by weight % by weight % by weight % by weight
B7 Alloy Steel 0.38-0.48 (1) 0.75-1.00 0.035 max 0.040 max 0.15-0.35 0.80-1.10 0.15-0.25

Mechanical Properties:

Diameter Tempering
Temperature
Tensile
Strength
Yield Strength,
0.2% offset
Elongation
in 4D
Reduction
of Area
Hardness
Min ksi Min ksi Min % Min % Max
2 1/2″ and under 1100F 125 105 16 50 321 HBW or 35 HRC
over 2 1/2 to 4″ 1100F 115 95 16 50 321 HBW or 35 HRC
over 4 to 7″ 1100F 100 75 18 50 321 HBW or 35 HRC