Carbon Steel Tab Washers With Long And Short Tab

The Carbon Steel Tab washers with long and short tab produced by the Xiaoguo® factory have excellent temperature resistance. They do not contain materials prone to aging such as rubber. They are made of pure metal and have a wide range of acceptable temperatures.

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Product Description

The following is a detailed introduction to the surface treatments of Carbon Steel Tab washers with long and short tab.

（1）Zinc Plating / BZP

This is the most common and widely used surface treatment method.

It offers excellent corrosion resistance and a shiny, clean surface appearance.

The salt spray test duration is typically 72 to 240 hours.

Suitable for general indoor and dry environments.

（2）Zinc Flake / Dacromet

It has strong anti-corrosion properties and is being increasingly widely applied.

It can provide extremely strong barrier protection and cathodic protection, with almost no risk of hydrogen embrittlement.

The duration of the salt spray test can reach 500 to 1200 hours, and for high-quality treatment, it can even exceed 1000 hours.

The Carbon Steel Tab washers with long and short tab treated with Dacromet surface coating are suitable for high-end automotive chassis components, wind power equipment, marine engineering, rail transportation and other fields with extremely high requirements for anti-corrosion.

Carbon Steel Tab washers with long and short tab

Mon	φ3	φ 4	φ5	φ6	φ8	φ10	φ12	φ14	φ16	φ18	φ20
d max	3.5	4.5	5.6	6.76	8.76	10.93	13.43	15.43	17.43	19.52	21.52
d min	3.2	4.2	5.3	6.4	8.4	10.5	13	15	17	19	21
dc max	10	14	17	19	22	26	32	32	40	45	45
dc min	9.64	13.57	16.57	18.48	21.48	25.48	31.38	31.38	39.38	44.38	44.38
L min	11.65	13.65	15.65	17.65	19.58	21.58	27.58	27.58	31.5	35.5	35.5
L max	12.35	14.35	16.35	18.35	20.42	22.42	28.42	28.42	32.5	36.5	36.5
h	0.4	0.4	0.5	0.5	0.5	0.5	1	1	1	1	1
b1	7	9	11	12	16	19	21	25	32	38	38
r	2.5	2.5	2.5	4	4	6	10	10	10	10	10

（3）Black Oxide

The blackening treatment is mainly for appearance rather than for rust prevention.

The salt spray test duration is only 24 to 48 hours, and its rust prevention capability is very limited.

It is usually used in environments where cost is a concern and there is no risk of corrosion, or simply for aesthetic reasons.

（4）Hot-Dip Galvanizing

The classic choice for outdoor applications with extremely high requirements for rust prevention.

It can provide a thick, wear-resistant and corrosion-resistant coating for Carbon Steel Tab washers with long and short tab, especially suitable for components that are exposed to harsh outdoor environments for a long time.

The duration of the salt spray test can reach 400 to 800 hours.

（5）Phosphating

Extremely strong adsorption capacity, capable of adsorbing a large amount of lubricating oil and anti-rust oil.

The surface of the Carbon Steel Tab washers with long and short tab after phosphating treatment is dark gray to black.

It is commonly used to enhance the adhesion of the coating, improve its rust prevention ability and reduce friction.

Carbon Steel Tab washers with long and short tab