60S2HFA

Responsible and highly loaded springs and springs made of calibrated round steel.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Spring-spring structural steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % V, % P, % C, % S, %
GOST 14959-79 94.96–96.64 1.4–1.8 0.4–0.7 0.9–1.2 < 0.2 < 0.25 0.1–0.2 < 0.025 0.56–0.64 < 0.025

Information on suppliers

Physical characteristics

Temperature, °C E⋅109, MPa
20 1.91

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σP, MPa ψ, % d5, % Treatment
Steel GOST 14959-79 1670 1470 25 6 Tempering 870 ° C, oil, leave 470 ° C

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 14959-79 raw 321
Hire GOST 14959-79 heat-treated 285

Technological Properties

Weldability Propensity to temper brittleness
Not applicable for welded structures loathsome

Analogues

Bulgaria
60S2ChFA

Standards

Standard Description
GOST 14959-79

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur

Description of physical characteristics

Parameter Units of measurement Description
E⋅109 MPa Elastic modulus

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
σU MPa Ultimate tensile strength
σP MPa Proportionality limit
ψ % Reduction in cross section on fracture

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures