Solutions aimed at growth

We have excellent control equipment and an in-house laboratory for dimensional control and material property control, applying destructive and non-destructive examinations methods. Our own equipment and qualified staff with abundant experience allow continuous control of processes and control of all important characteristics of the connecting components. 

This allows us to maintain a high level of responsiveness to your needs and a high level of reliability of Blaj products, which can also be certified. 

Dimensional inspection:
  • Checking of dimensions using conventional measuring tools such as calipers, micrometers, gauges;
  • Checking of dimensions using a measuring projector;
  • Checking of dimensions and positional tolerances using the MAHR measuring device;
  • Checking of surface texture parameters (roughness).
Inspections of mechanical properties:
  • Hardness testing (HV, HBW, HRC);
  • Microhardness testing (HV0.3 … HV0.5);
  • Tensile testing of bolts on machined test pieces (Rm, Rp0.2, ReL, A, Z, etc.);
  • Tensile testing of full size bolts;
  • Proof load testing of nuts;
  • Impact strength testing (Charpy);
  • Mix-up checking with the UCI method (hardness).
Inspection for surface defects:
  • Magnetic particle inspection up to a length of 4,000 mm;
  • Inspection using penetration test.
Ultrasonic inspection for internal defects of materials;
  • Ultrasonic inspection for internal defects of materials;
Inspection of microstructures of materials;
  • Inspection of microstructures of materials;
Inspection of chemical composition of materials
  • Inspection of chemical composition of materials
Inspection of surface coating thickness
  • Inspection of surface coating thickness

Certification of the inspection of fasteners

  • Declaration of compliance with the order 2.1 – EN 10204;
  • Test report 2.2 – EN 10204;
  • Inspection certificate 3.1 – EN 10204;
  • Inspection certificate 3.2 – EN 10204;
  • Inspection by TÜV, DNV-GL, ABS, LR;
  • BV, NKK, CCS, purchaser's authorized inspection representative.