Custom Brass Washer

The manufacturing process of Custom Brass Washer can be divided into two main methods: precision stamping or CNC turning depending on the thickness and batch size. The process path directly affects the edge quality and internal stress distribution. According to the ASTM B103 standard for brass plate stamping parts, when the thickness is less than 1.5 mm, high-speed stamping processing can ensure that the proportion of bright strips in the cross-section is not less than 75%, and the burr height is controlled within 0.05 mm. When the thickness exceeds 3.0 mm, turning technology is required to avoid punching cracks. The surface roughness of turning processing can reach Ra. 1.6 microns.

 

 

At the same time, according to ASTM E18 hardness test shows that the edge hardness of the stamped material can be increased by about 10% compared to the central area due to cold work hardening. The Rockwell B scale increases from the original 70 degrees to 77 degrees. This hardness gradient helps to enhance the crush resistance of the outer edge of the gasket. However, if the customer requires an overall soft state for riveting or flanging, an annealing treatment of about 300 degrees Celsius is required after molding to evenly drop the hardness to below 65 degrees, thus meeting the plastic deformation capabilities of the gasket required by different assembly processes.

 

 

In special working conditions such as low-temperature environments or explosion-proof locations, custom brass washers are favored for their non-sparking properties and stable impact toughness. According to the ASTM E23 Charpy impact test method, the impact absorption energy of brass C26000 can still reach more than 80 joules at minus 40 degrees Celsius, while ordinary carbon steel usually drops below 40 joules at the same temperature. This low-temperature toughness makes brass washers suitable for bolted connections of liquefied natural gas pipeline flanges or wind power equipment in cold areas. At the same time, according to ISO The 80079-36 explosion-proof standard stipulates non-sparking materials. Brass is a low-spark risk material.

 

 

The customized gasket will not produce igniting sparks when hammered or rubbed. It is suitable for use in flammable and explosive areas such as petrochemical industry. Its customized thickness and inner and outer diameters can be customized according to The explosion-proof joint surface clearance requires precise matching. For example, the inner diameter tolerance can be tightened to plus or minus 0.005 mm to ensure a tight fit with the journal, thereby avoiding the penetration of flammable gas along the thread gap, which not only meets safety regulations but also extends the time window for regular maintenance.

 

 

 

 

 

 

 

Obtain drawings from clients or produce drawings based on their samples or specifications.

The drawings, product raw materials, surface treatment, and other details are attested to by both parties.

 

 

 

 

Provide a quote, ensure that the order quantity is accurate, and include all relevant details,

such as the terms of payment, the terms of trade, the type of packaging, etc.

 

 

 

Follow the original drawings and samples exactly when producing the goods.

It was carefully packaged and delivered to the clients following a final inspection.

 

 

 

 

 

 

 

 

 

 

 

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