TOCT 4543 Gr.30X
2016-11-15 16:49:22 Origin： Remark：0 Click：
Material standard specification of TOCT 4543 type 30X Round bar, Flat bar, Forgings, Steelmaking, ESR melted, Hot forging, Hot rolling, Heat treatment
TECHNICAL SPECIFICATION - TOCT 4543 Grade 30X
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 (％): 0.24 ~ 0.32
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 air or oil cooling
Tensile strength,σb/≥ MPa: 883
Yield strength, σ0.2/≥ MPa: 686
Elongation, δ ≥(％): 12.0
Reduction of area, ф ≥ (％): 45.0
Tensile strength,σb/≥ MPa: 883
Yield strength, σ0.2/≥ MPa: 686
Elongation, δ ≥(％): 12.0
Reduction of area, ф ≥ (％): 45.0
Impact, AK (J/cm2): 69
Annealed hardness | HBW: 187
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 DIMENSION
Round bar & Disc (diameter): 5.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts, and other different shapes based on OEM.
Annealed hardness | HBW: 187
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 DIMENSION
Round bar & Disc (diameter): 5.50mm to 500mm
Square bar / Flat bar: 3mm to 500mm
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com
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