The engineering mechanical property testing of steel structure includes two aspects

Steel structure engineering testing includes steel structure and special equipment raw materials, welding materials, welding parts, fasteners, welds, bolt ball joints, coatings and other materials and engineering all specified test testing content. Mainly include: steel structure non-destructive testing, main structure engineering testing, steel structure mechanical properties testing, steel structure fastener mechanical properties testing, steel chemical composition analysis, coating raw materials testing, salt spray test and other testing.

1, steel structure mechanical properties test:

a. Metal raw materials such as steel plate, round steel tensile testing (tensile strength, yield strength, elongation after fracture), bending test, impact test (normal temperature impact, low temperature impact, aging impact), hardness and other toughness and plastic properties testing, steel bar tensile testing (yield strength, tensile strength), bending and other properties. Z-tensile test of steel plate.

b. Welding process evaluation of metal welding parts, tensile and bending test of steel welding parts.

c. Metal hardness test is the ability of metal to resist local deformation, especially plastic deformation, indentation or scratch, and is an indicator to measure the degree of softness and hardness of metal materials. Hardness includes: Vickers hardness, Leeb hardness, Rockwell hardness, Brinell hardness

2. Mechanical properties testing of steel structure fasteners

Bolt coupling torque coefficient, fastening axial force, tensile strength (yield strength, tensile strength), wedge load test, bolt nut load retention test, bolt washer hardness and other properties, bolt connection plate anti-slip coefficient detection.