basic introduction

ZRLK testing can provide CMA/CNAS dual qualification testing reports for metal products, involving mechanical performance testing, chemical composition analysis, metallographic analysis, precision dimensions of ferrous metals, nonferrous metals, alloys, castings, photovoltaic brackets, mechanical equipment and parts, etc. Measurement, non-destructive testing, corrosion resistance test and environmental simulation test, etc.

Testing service

Steel material testing

Structural steel, copper, aluminum, iron, stainless steel, heat-resistant steel, high temperature alloy, precision alloy, chromium, manganese and their alloys, etc.;

Steel pipe inspection

Carbon tube, stainless steel tube, alloy steel tube, black tube, galvanized tube, aluminized tube, chrome plated tube, aluminized tube and other alloy layer steel tube, seamless steel tube, hot rolled seamless tube, cold drawn tube, precision steel tube, Hot pipe expansion, cold spinning tube and extrusion tube, straight seam steel tube, etc.

Metal alloy and product testing

Steel pipes, copper and aluminum materials, steel plate sections, welding materials, doors and windows, rolling doors, kitchen supplies, various metal pendants, machine parts, vehicle accessories, etc. Light metals, heavy metals, precious metals, semi-metals, rare metals and rare earth metals, etc.; functional alloys, metal matrix composites, etc.;

Metal product inspection

Pig iron, aluminum tubes, iron plates, iron tubes, steel ingots, billets, profiles, wires, metal products, non-ferrous metals and their products, steel, fasteners, cast iron, steel pipes, copper pipes, stainless steel pipes, steel wires, welding materials, All kinds of metal and alloy products such as steel plate section steel, copper aluminum material, steel wire rope and various metal pendants.

Wire rope detection

For elevators, conveyor belts, important coal mine applications, compacted strands, passenger aerial ropeways, export wire ropes, thick wire ropes, etc.

Welding material inspection

Welding rod, flux, welding wire, gas welding powder, brazing material, etc.

Coating inspection

Zinc plating, alloy plating, metal plating, electroplating.

PV bracket inspection

Zinc layer adhesion, zinc layer uniformity, stent flexibility, impact strength, impact strength.

Test items

Routine element analysis: quality (component analysis), silicon (Si), manganese (Mn), phosphorus (P), carbon (C), sulfur (S), nickel (Ni), chromium (Cr), copper (Cu), Magnesium (Mg), calcium (Ca), iron (Fe), titanium (Ti), zinc (Zn), lead (Pb), antimony (Sb), cadmium (Cd), bismuth (Bi), arsenic (As), Sodium (Na), potassium (K), aluminum (Al), brand determination, moisture

Analysis of metal elements: silver (Ag), gold (Au), palladium (Pd), platinum (Pt), rhodium (Rh), ruthenium (Ru), iridium (Ir), osmium (Os)

Physical properties: magnetic properties, electrical properties, thermal properties, oxidation resistance, wear resistance, salt spray, corrosion, density, thermal expansion coefficient, elastic modulus, hardness;

Chemical properties: atmospheric corrosion, intergranular corrosion, stress corrosion, pitting corrosion, corrosion fatigue, corrosion in artificial atmosphere;

Mechanical properties: tensile, bending, yield, fatigue, torsion, stress, stress relaxation, impact, wear, hardness, hydraulic resistance, tensile creep, flaring, flattening, compression, shear strength, etc.;

Process performance: filament stretching, fracture inspection, repeated bending, bidirectional torsion, hydraulic test, flaring, bending, hemming, flattening, ring expansion, ring stretching, microstructure, metallographic analysis;

Non-destructive testing: X-ray non-destructive testing, electromagnetic ultrasonic, ultrasonic, eddy current testing, magnetic flux testing, penetration testing, magnetic particle testing Failure analysis: fracture analysis, corrosion analysis, etc.;

Metallographic examination: macro metallographic and micro metallographic.

Testing standards

GB/T 18590-2001 Corrosion pitting evaluation method for metals and alloys

GB/T 14995-2010 High-temperature alloy hot-rolled sheet

GB/T 14996-2010 Superalloy cold rolled sheet

GB/T 10567.1-1997 Test method for residual stress of copper and copper alloy processed materials Mercury nitrate test method

GB/T 10686-2013 Copper alloy tool explosion-proof performance test method

GB/T 19869.2-2012 Aluminum and aluminum alloy welding process qualification test

GB/T 15114-2009 Aluminum alloy die casting

GB/T 15530.1-2008 Copper alloy integral casting flange

GB/T 1527-2006 Copper and copper alloy drawn tubes

GB/T 16865-2013 Samples and methods for tensile test of deformed aluminum, magnesium and their alloy processed products

Our advantage

1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.