Technical informations

SOME SIMPLIFIED TECHNICAL TERMS REGARDING THE MATERIAL WE OFFER

• Yield : the most important characteristic of steel. This is the limit before permanent deformation
• Tensile : this value is always higher than the elastic limit. This is the limit before the steel fractures.
• Material test report (MTR) : each product we offer is accompanied by a material test report)which indicates for instance the chemical and physical characteristics

CHROMED BARS

• Regular chromed bar : type 1045 (or 38MnVS6) or 4140 (or 42CrMo4V) steel covered with a layer of chrome often 0.001 thick
• Induction chromed bar: type 1045 or 4140 steel having undergone heat treatment (quenching) whose thickness varies depending on the diameter and which is then covered with a layer of chrome often 0.001 thick
• 38MnVS6 chromed bar : European steel recognized for its machinability thanks to its high manganese content. Mainly used for manufacturing cylinder rod
• 42CrMo4V chromed bar: European steel recognized for its shear and torsion resistance. Used for manufacturing highly stressed cylinder rod or pins

STEEL TYPE 1045, 4140, 4340

• HRA (Annealed) : annealing which made it possible to relax the steel which offers average strength and is easy to machine
• HR (Hot Rolled) :  hot rolled whose exterior surface is often machined
• HT (Heat Treated): heat treatment which offers superior resistance (hardness approximately 32 Rc)
• TGP (Turn Ground Polished) : material that has been polished and ground and ready for use without further transformation. Also called "precision steel" for its very precise tolerances
• Sometimes there is a combination of terms. Example: HR HT, HT TGP, etc.

STAINLESS STEEL

• 304 vs 316 :   SS304 contains a minimum of 18% chromium and 8% nickel.   SS316 contains a minimum of 16% chromium, 10% nickel, and 2% to 3% molybdenum.   SS316 has more resistance to corrosion due to the addition of the alloy molybdenum compared to 304.   The cost of SS304 is comparatively lower than SS316.

• PSQ (Pump shaft quality) : term specific to stainless steel but whose finishing quality is comparable to TGP. High quality material

BRONZE AND ALUMINIUM BRONZE

• C9200 (SAE 660) :

  C93200 (SAE 660) Bearing Bronze has excellent load capacity and antifriction qualities and is used for a wide variety of applications such as machine tools, power transmission equipment, electric motors, automotive equipment, etc.  It has good machining characteristics, resists many chemicals and is generally recommended for medium speed, medium load applications.

• C95400 :

  C95400 Aluminum Bronze provides high yield and tensile strength, good ductility, weldability and exceptional resistance to wear. It is recommended for high load, high wear applications.  It is used for high strength bearings, bushings, gears, worms, wear plates, valve seats, and guides.