1.7218
2014-11-07 15:58:36 Origin： Remark：0 Click：
DIN EN 10083-2 Specification 1.7218 Round bar, Flat bar, Plate 1.7218 Shaft ESR remelting, Forging, rolling, Heat treatment, Cold working.
MATERIAL DATA SHEET - Grade W-Nr 1.7218
MATERIAL CATEGORY: hardened and tempered steel
MATERIAL SPECIFICATONS - DIN EN 10083-2 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.22 ~ 0.29
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％)≤: 0.025
Sulfur, S (％)≤: 0.035
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.15 ~ 0.30
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％)≤: 0.025
Sulfur, S (％)≤: 0.035
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.15 ~ 0.30
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃| annealing: 680~720
Heat treatment temperature /℃| annealing: 680~720
Heat treatment temperature /℃| Normalizing: 840~880
Heat treatment temperature /℃| Quenching: 830~860 Oil
Heat treatment temperature /℃| Tempering : 540~680
Hardness after annealing ≤HBS: 255
Heat treatment temperature /℃| Quenching: 830~860 Oil
Heat treatment temperature /℃| Tempering : 540~680
Hardness after annealing ≤HBS: 255
Steel dimension /mm: ≤16
Tensile strength, |σb ≥/MPa: 900 ~ 1100
Yield strength, |σs ≥/MPa: 700
Elongation, |δ5 ≥/ (%): 12
Reduction of area, |ψ≥/ (%): 50
Impact strength, |AKV ≥/J: 50
Tensile strength, |σb ≥/MPa: 900 ~ 1100
Yield strength, |σs ≥/MPa: 700
Elongation, |δ5 ≥/ (%): 12
Reduction of area, |ψ≥/ (%): 50
Impact strength, |AKV ≥/J: 50
Steel dimension /mm: 17 - 40
|σb≥/MPa: 800 ~ 950
|σs≥/MPa: 600
|δ5≥/(%): 14
|σb≥/MPa: 800 ~ 950
|σs≥/MPa: 600
|δ5≥/(%): 14
|ψ≥/(%): 55
|AKV≥/J: 55
|AKV≥/J: 55
AVAILABLE SHAPES
Black bar / Flat bar / Square bar / Steel strip / Sheet
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
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.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft, Pressure vessel/
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to Email or call our resident team of qualified production engineers. E-mail: sales@ccsteels.com
PRODUCT PROFILE
Round bar / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 600mm
Plate / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1200mm
Steel sheet: thickness 0.50 ~ 3.0mm, width 1000mm X length 1000/2000mm/
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, and pther different shapes based on OEM.
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