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• • • 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.

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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

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