QUALITY POLICY

Since we opened our doors, MODEPSA has worked on mining and infrastructure projects for demanding, high-profile clients who need safe, top-quality products for their jobs.

That’s why we put so much of our resources and focus into improving, every day, our quality control, production process, staff training and sourcing of the best raw material we can get.

PRODUCTION PROCESS

We run two production lines:

Automatic (Cold)

  1. Raw material preparation
  2. Forming and/or pressing
  3. Thread rolling

Depending on the material and finish the customer requires, we run the following processes:

  • Bluing (black oxide)
  • Heat treatment
  • Zinc plating or tropicalizing
  • Galvanizing

Forging (Hot)

  1. Cutting
  2. Forging
  3. Reducing and rolling

Quality checks run throughout production to make sure every product meets the standard.

QUALITY CONTROL

In recent years, MODEPSA has expanded both the capacity and the number of our quality controls as our customers’ quality requirements have grown.

Quality control starts with our raw material suppliers, who are continuously evaluated and approved by our Quality Control and Logistics teams.

We also test every product by lot and by heat, so every piece is fully traceable.
Our products are made to international technical standards including ASTM, SAE, ASME, ANSI, AISI, ISO and DIN.

We do it all with equipment and tools calibrated by Inacal-authorized entities.

THE TESTS, ANALYSES AND CONTROLS WE RUN ON OUR PRODUCTS:

  • Quantitative chemical analysis of the raw material, to verify it matches the chemical composition of the original heat and the material the product standard requires.

  • Hardness testing on our calibrated digital hardness testers, following the fastener test methods in ASTM F606.

  • Tensile testing to determine the mechanical properties of our products, including ultimate strength, yield, elongation, reduction of area and more.

  • Tension vs. torque testing on the finished product, using torque wrenches, multipliers and the “Skidmore” hydraulic load cell, which measures the tension the product reaches at a given torque.

  • Visual inspection strictly following ASTM F812/F812M for bolts and F788/F788M for nuts.

  • During manufacturing we continuously check overall dimensions and thread tolerances per ASME B1.1, B1.2 and B1.3, using calipers, gauges and micrometers.

  • Zinc-coated products, whether hot-dip galvanized or cold electroplated, get a coating thickness check with a calibrated thickness gauge to meet ASTM F2329 (hot-dip) or ASTM F1941 (electroplated).

  • Metallographic analysis of finished products to check the microstructure of steel that has been quenched and tempered.

  • Our products are tested for surface decarburization using the method in ASTM F2328.

  • Structural bolts, and bolts in general, go through magnetic particle inspection to detect and rule out cracks.

  • If the customer requires it, we also run Charpy impact tests under ASTM E23 to measure the toughness of our products, especially for low-temperature service.