GOST-(14X2H3MA) Steel Bar, Diameter: 0-1 & 1-2 inch
TECHNICAL SPECIFICATION: TOCT 4543 - 1971
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: alloy structural steel Cr - Ni - Mo type
CHEMICAL COMPOSITION (WEIGHT %)
C (%): 0.12 ~ 0.17
Si (%): 0.17 ~ 0.37
Mn (%): 0.30 ~ 0.60
P (%) ≤: 0.025
S (%) ≤: 0.025
Cr (%): 1.50 ~ 1.75
Ni (%): 2.75 ~ 3.15
Mo (%): 0.20 ~ 0.30 Cu (%): ≤ 0.30
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Hot working temperarture: 1150 ~ 850 Deg.
Heat treatment: Quenching 880 Deg. oil cooling
Tempering 180 air cooling
Tensile strength,σb/≥ MPa: 980
Yield strength, σ0.2/≥ MPa: 883
Elongation, δ ≥(%): 10.0
Reduction of area, ф ≥ (%): 45.0
Impact, AK (J/cm2): 78
Annealed hardness | HBW: 269
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rods
Mechanical parts - connecting rods, bolts and nuts
Multidiameter shafts
OFFERING FORMS AND SHAPES
Round bar (Diameter): 0.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
