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What are the main testing information of galvanized materials?

Main testing items of steel:


Composition detection, brand, material, complete composition analysis, conventional chemical element composition detection


Mechanical properties test:


Tensile test (yield strength, tensile strength, elongation, shrinkage of section, etc.), bending test, room temperature impact, low temperature impact, hardness test (HV Vickers hardness, HRC Rockwell hardness, HB Brinell hardness)


Corrosion resistance test:


Intergranular corrosion, two-phase steel ferric chloride corrosion test, NSS neutral salt spray test, AASS acid salt spray test, CASS copper ion accelerated salt spray test, CCT cycle salt spray corrosion test


Metallographic analysis:


Average grain size measurement, comprehensive rating of nonmetallic inclusion, microscopic evaluation of nonmetallic inclusion, metallographic structure detection, microscopic structure detection, forging flow line observation of forgings, bulk carbide rating of tool steel, eutectic carbonization inhomogeneity, decarburization, cemented carbide grain size measurement, bearing steel low microstructure, nitriding layer depth, hardening layer depth, eutectic carbide of steel Evenness evaluation


Nondestructive testing:


Visual inspection (VT) Radiographic inspection (RT), ultrasonic inspection (UT), magnetic particle inspection (MT), liquid penetrant inspection (PT)


Test material:


Steel materials: structural steel, copper, aluminum, iron, stainless steel, carbon steel, spring steel, section steel, high-speed tool steel, heat resistant steel, high temperature alloy, precision alloy, chromium, manganese and its alloy, etc.


Steel pipe:


Square pipe, galvanized round pipe, hot galvanized round pipe, ductile iron pipe, cast pipe, carbon pipe, stainless steel pipe, alloy steel pipe, black pipe, galvanized pipe, aluminum plated pipe, chrome plated pipe, aluminized pipe and other alloy layer steel pipe, seamless steel pipe, hot rolled seamless pipe, cold drawn pipe, precision steel pipe, hot expansion pipe, cold spinning pipe and extruded pipe, straight seam steel pipe, stainless steel pipe, etc.


Alloy products:

Steel pipe, copper and aluminum, steel plate section, welding materials, doors and Windows, rolling shutter doors, kitchen supplies, all kinds of metal pendants, machine parts, vehicle accessories, etc.


Metal material products:


Pig iron, aluminum tube, iron plate, iron pipe, steel ingot, billet, profiles, wire, metal products, non-ferrous metals and their products, iron and steel, fasteners, cast iron, steel pipe, copper pipe, steel bar, hot rolled coil, galvanized steel plate, color coated plate, hot galvanized steel plate




About

Zhishang Steel Co., Ltd

ABOUT USOverviewThe company mainly deals in color-coated, galvanized, stainless steel pipes, stainless steel coils, stainless steel plates of various materials; hot-rolled series of rebar, medium and heavy plates, coils, I-beams, angle steels, channel steels, H-beams and other steel products and deep processing Service. (The company’s annual invent···

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