Spring and spring steel
Buy rolled spring steel at factory price offered by the company Electrocentury-steel. Guaranteed on-time delivery, wide range of assortment and delivery of the purchased products to the address specified by the buyer
Composition and properties
Group spring steels many — often such products are made of steel 65g, but is available to rent from other steels of similar purpose, for example, of non-alloy steels 70, 55S2, 60S2, 70 G, and also low — and medium-alloyed 60S2A, 50KHFA.
As an example, discusses the composition and properties of rolled products made of non-alloy steel 70 G GOST 14979, which has the following chemical composition:
|Availability in steel, %||0,67 0,75…||0,17…0,37||0,9…1,2||Not more than 0.25||Not more than 0.25||0.20|
The closest foreign analogues of this steel are: in the U.S. and Canada — steel G15720 in Europe — steel 80Mn4. Their composition is characterized by increased up to 1,5…4,0% manganese content and various contents of carbon (in steel G15720 not more than 0.72%, and in steel 80Mn4 — on the contrary, about 0.8%).
The main physico-mechanical properties of steel 70G:
- Limit strength at tension, MPa — 1030 (data correspond to nagarebana metal, for normal delivery condition this parameter does not exceed 750…800 MPa);
- The plastic limit, MPa — 800 835…;
- Elongation under uniaxial tension, % — 7…15% (smaller values for-worked metal);
The annealed products can be exposed to the quenching temperature 820…8400 C in oil, with the subsequent high tempering (at 460…4700 C).
Forgings, ingots and rolled steel of grade 70 G were used as blanks for the production of critical components and parts of lifting and handling equipment. Of the steel produced, in particular, wheels of cranes and trucks, rollers, slewing rings, irresponsible spring washer.
Steel 70 G bad weld, and satisfactory mechanical processing, it is desirable to use a cutting tool made of hard alloys.
The company Electrocentury-steel offers to buy products of spring steel at manufacturer’s prices in a wide range of rolled profiles. Every batch of products is accompanied by quality certificate.