The Bolt will generally conform to ANSI/ASME B 18.2.1M Heavy Hex Bolts. Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges。



Basic Info.

Grade: B

Type: Round Head

Marking: M

Origin: China

Production Capacity: 1600 Ton/Month




Product Description

1) Material: Low Carbon Steel

2).Finished: Black, Zinc,

3). Packaging: 25kgs per box, 36 boxes per pallet




Scope:


1.1When tested, sampled specimens shall adhere to specified values for chemical composition, hardness, tensile strength, yield point, elongation, and dimensions.

1.2 Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges.

1.3 Bolts, studs, and threaded rod A having a tensile strength of 60 to 100 ksi and intended for flanged joints in piping systems with cast iron flanges.

1.4The values stated in inch-pound units are to be regarded as the standard.

1.5Supplementary Requirement S1 of an optional nature is provided, which describes additional restrictions to be applied when bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.



Chemical Properties：

Element Grade B

Carbon, max 0.29%

Manganese, max 1.20%

Phosphorus, max 0.04%

Sulfur, max 0.05%




Recommended Nuts and Washers：


Nuts--------- A563A Heavy Hex

Washers--------- F844