1" X 170MM Alloy Steel ASTM A193 B7 Bichromate Coated Full Threaded Stud Bolt For Flange

Zinc Yellow Bichromated process using electrolysis, this galvanic process deposits a zinc coating onto the product surface. The electrolytic process uses an aqueous solution in combination with electrolysis to produce a solid zinc deposit. The result is a smooth and bright layer. The layer thickness varies from 5 – 40 µm and is determined by the current density and the immersion time in the zinc bath. The galvanised layer is then treated with passivation solutions, such as chromate or dichromate, which increase the corrosion resistance and give a decorative appearance. The passivation layer is a thin zinc-chromium/zinc-oxide layer on top of the zinc coating. The zinc layer has a light blue translucent hue. This process releases hydrogen gas, which in the case of certain forged steels, can be absorbed into the material structure. There is no risk of material deformation.

Shaanxi Flourish Industrial Co., Ltd specializes in manufacturing and supplying various fasteners & some pipe fittings. Bolts, nuts, washers, screws, plugs, couplings,end dishes, gaskets and flanges round out our most popular categories, while our extensive collection of standoffs, pins and rivets are commonly purchased for use in construction.Most of our products are usually used in structural steel, metal building, oil&gas, photovoltaic, electricity, wind energy, mechanical machine and automobile etc. Due to different uses in many industries, we can cater to various requirements of our customers for materials,coating and sizes.

By the advanced production equipment and production technology, we can not only produce products that meet German, American and ISO standards,but also customize them according to purchasers' drawings or needs. More importantly, we also provide top-notch solutions for engineering projects related with our products.

Our quality products and efficient team service makes us continuous growth and also set up more business relationships with more customers in the world. All the products are mainly exported to Europe, Middle East and South America, Southeast Asia and Australia.Your esteemed company is welcome to join.

We sold our products in bulk quantities, generally for industrial use. Visit our website to explore our extensive range of products and see how we can meet your specific needs. We also offer online chat on our website for quick, convenient assistance.

What you really need is the direction in which we are working.