Location » Home » Grades > Structural Steel > 75

GOST 75 Enquiry | Print this page

GOST 75 Details

Spring carbon and alloy steel bars. Specifications

GOST 75 Standard Download

Tags

75 Application:Spring carbon and alloy steel bars. Specifications
Category Type Grade Designations
Grades Structural Steel 75 Russia - GOST , GOST 14959 |
Chemical composition(mass fraction)(wt.%)
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.72 0.80
Si 0.17 0.37
Mn 0.50 0.80
P - 0.035
S - 0.035
Cr - 0.25
Ni - 0.25
Cu - 0.20
Mechanical properties of grade 75
Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
162 (≥) 235 (≥) 22 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Physical properties of grade 75
Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
498 (≥) 312 (≥) 14 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 323
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
682 912 655
75 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
75 GOST Russia
Spring carbon and alloy steel bars. Specifications