1.8521
2015-01-30 09:43:01 Origin： Remark：0 Click：
1.8521 is a Carburized structural Chromium-Mo-V steel with high tensile, toughness and hardenability. Available in form of Round bar, plate, forgings hot forging, rolling, heat treatment,
TECHNICAL DATASHEET - W-Nr 1.8521
MATERIAL CATEGORY: Carburized structural steel
MATERIAL SPECIFICATIONS - DIN EN 10085 (2001), DIN 17211 (1987)
CHEMICAL COMPOSITIONS (mass fraction - %)
Carbon, C (％): 0.13 ~ 0.18
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.80 ~ 1.10
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 1.20 ~ 1.50
Molybdenum, Mo (％): 0.80 ~ 1.10
Vanadium, V (％): 0.20 ~ 0.30
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃ | annealing: 680～740
Heat treatment temperature /℃ | quenching: 940~980 Oil or Water
Heat treatment temperature /℃ | tempering: 600～700
Heat treatment temperature /℃ | carburizing: 500～520
Hardness after annealing HBS ≤: 248
Size /mm: ≤ 100
Tensile strength, ≥ Rm / MPa: 1100
Yield strength, ≥ Rp0.2 ≥ MPa: 750
Elongation, A5 (％) ≥: 10.0
Impact, ≥ AKV / J (DVM-V form sampling): 35
Size /mm: ≤ 250
TS. ≥|σb/MPa: 1050
YS, ≥|σs≥/MPa: 700
EL, ≥|δ5(％)≥: 12.0
Impact, ≥|AKV/J (DVM-V form sampling): 40
Hardness of Carburized layer |HV: 800
PRODUCT DESCRIPTION
structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
PRODUCT PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 5.5 to 500mm
Square bar / Flat bar: 10 to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Sheet steel via cold rolled: T0.5 - 6mm X W100 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
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 rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to Email (sales@ccsteels.com) our resident team of qualified production engineers.
Round bar / rod / disc (diameter): 5.5 to 500mm
Square bar / Flat bar: 10 to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Sheet steel via cold rolled: T0.5 - 6mm X W100 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
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 rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to Email (sales@ccsteels.com) our resident team of qualified production engineers.
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