Annealing, hardening and heat treatment of spring and spring steel

Are you interested in annealing, hardening and heat treatment of spring and spring steel? The supplier Evek GmbH offers to buy spring and spring steel in any quantity at an affordable price in a wide range. We provide product delivery anywhere in the continent. Best price

Technical features

In order to perform their operational functions, the executive elements of springs and springs must possess:

Increased elasticity;

Sufficient plasticity during processing;

Resistance to alternating loads.

Relevance of Heat Treatment

Such a set of properties can be obtained only after a proper heat treatment regimen is selected. Taking into account that all steels of this group are high-carbon steels with sorbitol/thrustite structure, the heat treatment conditions should not cause internal stresses and should prevent the products from spontaneous aging under load (creep prevention). Evek GmbH offers to buy spring and spring steel at an affordable price in a wide range. We provide delivery of products anywhere in the continent. The price is optimal.

55C2 and 60C2.

For example, to obtain higher elasticity, strength and hardenability properties, 55C2 and 60C2 spring-alloy steels have a high percentage of silicon, which, as a result of quenching and subsequent tempering is completely dissolved in iron without forming any compounds with it. The initial state of these steels is ferrite mixed with carbides. The first constituent causes ductility of spring steels, and the second constituent causes brittleness. To give the coil structure an equilibrium, it is quickly heated to temperatures above the formation of a solid solution of carbon in α-iron (700...720°С) and then moderately rapidly cooled in oil, so as not to create internal structural stresses. It is under these conditions of heat treatment that the steel obtains an equilibrium crystalline structure. Additionally, it can be improved by annealing, but the initial hardness will fall, which, in turn, will reduce the durability of the part.

Operational properties

GOST 14959-89 establishes the following level of performance characteristics of spring steels after heat treatment

Steel grade Yield strength, N/mm2 Tensile strength, N/mm2 Relative elongation δ5, % 5 % Relative narrowing, % Relative narrowing, % 50XG
50CRNIG 1175 1270 7 35
50CRNIGA 1175 1270 7 35
50CRNIGHFA 1325 1420 6 35
50CRPHA 1080 1270 8 35
55С2 1175 1270 6 30
55C2A 1175 1270 6 30
55C2GF 1375 1570 6 25
55CRGR 1175 1270 7 35
60Г 785 980 8 30
60С2 1175 1270 6 25
60C2A 1375 1570 6 20
60C2G 1325 1470 6 25
60C2H2A 1325 1470 8 30
60C2HA 1325 1470 6 25
60C2CFA 1470 1670 6 25
65Г 785 980 8 30
65C2VA 1665 1860 5 20
70Г 835 1030 7 25
70C3A 1470 1670 6 25

Buy. Supplier, price.

Are you interested in annealing, hardening and heat treatment of spring and spring steel? Supplier Evek GmbH offers to buy spring and spring steel in any quantity at the manufacturer's price. We provide delivery of products anywhere in the continent. The price is optimal. We invite to partner cooperation/