TOCT 4543 Gr.40X
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Description 40X Round bar, Stocklist 40X ESR melted, 40X Hot forging, Hot rolling, Heat treatment, Material technical specification TOCT 4543 - 1971.
TECHNICAL SPECIFICATION - Grade TOCT 4543 Grade 40X
TECHNICAL SPECIFICATION: TOCT 4543 - 1971
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: alloy structural steel - Chromium type
CHEMICAL COMPOSITION (mass weight- %)
Carbon, C (％): 0.36 ~ 0.44
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 0.80 ~ 1.10
Nickel, Ni (％): ≤ 0.30
Molybdenum, Mo (％): -
Copper, Cu (%): ≤ 0.30
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Hot working temperarture: 1200 ~ 800 Deg.
Hot working temperarture: 1200 ~ 800 Deg.
Heat treatment: Quenching 860 Deg. oil cooling
Tempering 500 water or oil cooling
Tensile strength,σb/≥ MPa: 980
Yield strength, σ0.2/≥ MPa: 785
Elongation, δ ≥(％): 10.0
Reduction of area, ф ≥ (％): 45.0
Tensile strength,σb/≥ MPa: 980
Yield strength, σ0.2/≥ MPa: 785
Elongation, δ ≥(％): 10.0
Reduction of area, ф ≥ (％): 45.0
Impact, AK (J/cm2): 59
Annealed hardness | HBW: 217
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
FORMS AND DIMENSION
Round bar & Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 550mm X Coil
Forging piece: stepped shafts, other different shapes based on OEM.
Annealed hardness | HBW: 217
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
FORMS AND DIMENSION
Round bar & Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 550mm X Coil
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
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