The GB 1230 standard is a Chinese national standard that specializes in high-strength washers for steel structures. These washers are usually used in conjunction with high strength bolts to ensure that the connection of steel structures is both strong and reliable.

Carbon Steel: Typically used for general applications.

Stainless Steel: For environments where corrosion resistance is required.

Alloy Steels: Used in applications requiring high strength or high temperature resistance.

Advantage:

HIGH STRENGTH MATERIAL: These washers are usually made of high strength steel to ensure performance and safety under high loads. Precision Manufacturing: The size and shape of the washers are precisely manufactured according to GB 1230 standards to ensure compatibility with bolts and nuts. Heat treatment: washers may be hardened and tempered to increase their hardness and strength. Corrosion resistance: Some washers may have a surface treatment, such as zinc plating, to improve their corrosion resistance in harsh environments.

Scope of Application

Steel construction: In steel construction, these washers are used to ensure a strong connection between beams, columns and other structural components. Bridge construction: In bridge construction, they are used to connect the various parts of a bridge, such as the deck and supporting structures. Machine construction: In machine construction, they are used to secure and adjust machine parts such as bearings, gears and motors. Chemical industry: in the construction of chemical plants, these washers are used to connect and fix equipment such as pipes, pressure vessels and heat exchangers due to their good corrosion resistance.

Quality Certification

Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.

Quality inspection

Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.