Seamless steel tubes for pressure purpose DIN1629

Product Details

Short Description:

Product material:

St37.0/St44.0/St52.0

Product applied standard:

DIN 1629

Finished products package:

Steel belt hexagonal package/plastic film/woven bag/sling package

Product manufacturing process:

Tube blank → Inspection (spectral detection, surface inspection, dimensional inspection, and macro examination) → Sawing → Perforation → Thermal inspection → Pickling → Grinding inspection → Pickling → Lubrication → Cold drawing (the addition of cycled processes such as heat treatment, pickling and cold drawing should be subject to the specific specifications) → Annealing (NBK) → Performance test (mechanical property, impact property, flattening, flaring, and hardness) → Straightening → Tube cutting → Non-destructive testing (eddy current, and ultrasonic) → Product inspection → Immersion of anti-corrosive oil → Packaging → Warehousing

Product manufacturing equipment:

Shearing machine/sawing machine, walking beam furnace, perforator, high-precision cold-drawing machine, heat-treated furnace, and straightening machine

Product testing equipment:

Outside micrometer, tube micrometer, dial bore gage, vernier caliper, chemical composition detector, spectral detector, tensile testing machine, Rockwell hardness tester, impact testing machine, eddy current flaw detector, ultrasonic flaw detector, and hydrostatic testing machine

Product applications:

Chemical equipment, ships, pipelines, automotive parts, and mechanical design applications