Steel structure engineering testing is mainly done in raw material testing and main structure testing. Among them, the raw materials of steel structure are often sent for inspection of bolts, steel raw materials, coatings, etc., and the main structure is to do welding seam detection and load-bearing detection..

Test Range
Steel, welding materials, fastening standard parts for connection, welding balls, bolt balls, sealing plates, cone heads and sleeves, coating materials, steel structure welding engineering, welding top (stud) welding engineering, common fastener connection, high-strength bolt installation torque, parts processing size, steel component assembly size, steel component preassembly size, single-layer steel structure installation size, multi-layer and high-rise steel structure safety Installation size, steel grid structure installation size, steel structure coating thickness, etc.

Test item
Appearance, non-destructive testing, tensile test, impact test, bending test, metallographic structure, pressure equipment, chemical composition, welding materials, welding materials, weld external defects, weld internal defects, weld mechanical properties, Raw material testing, appearance quality, uniformity, adhesion, bending resistance, salt spray corrosion resistance, wear resistance, impact resistance, chemical solvent corrosion resistance, moisture and heat resistance, weather resistance, temperature change resistance, cathode stripping resistance, Ultrasonic inspection, mobile communication engineering steel tower mast structure, magnetic particle inspection, mobile communication engineering steel tower mast structure, connection fastener final twist torque detection, connection fastener strength calculation, appearance defect, anti-corrosion detection, structural perpendicularity, structural component real load, strength, stiffness, stability, etc

Detection standard
GB 50205  steel structure engineering construction quality acceptance code
NB/T 47014  Welding process evaluation of pressure equipment
JB/T 5943  General technical conditions for welding parts of construction machinery
GB/T 18226  highway traffic engineering steel components anticorrosion technical conditions
GB 50661  Welding specification for steel structures
GB 50205  steel structure engineering construction quality acceptance code
CJJ/T 235  urban bridge steel structure anti-corrosion coating engineering specification
JT/T 722  highway bridge steel structure anticorrosive coating technical conditions

About The Company

jc jaw crusher structure

1. Established in 1985, with more than 30 years of testing experience, the first batch of third-party impartial technical inspection institutions approved by the State Administration for Market Regulation.

2. There are offices in various provinces in China, with 12 branch laboratories, which are convenient and convenient, and the testing efficiency is high.

3. Testing capabilities, including 10,000+ parameters and 4,000+ products, covering more than 3,000 items including national standards, industry standards, and international standards.

4. The testing service industry covers metal products, roads, railways, bridges, tunnels, ports, civil construction, petroleum, water conservancy, environmental engineering, etc.

Qualification Image

Qualification Image

Inspection Process

Inspection Process


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  • E-mail:
  • Add.: No.280, Guanlin Road, Luoyang, Henan, China
  • Tel.: +86-4007878588