1.7223 Stockist, 1.7223 Equivalent Steel

1.7223
2015-02-03 09:07:20   Origin:   Remark:0 Click:

DIN 1.7223 is a Chromium - molybdenum surface hardening steel, 1.7223 Round bar, Flat bar, Plate, ESR, Heat treatment, Cold machined
 
Official Test Certificate: issued by TUV - SGSBV

TECHNICAL DATA SHEET - W-Nr 1.7223
MATERIAL CATEGORY: Flame and high-frequency heating surface hardening steel
PRODUCT DESCRIPTION
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.
Alloy 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.
Final heat treatment - Quenched and tempered.
MATERIAL SPECIFICATIONS - DIN EN 10083-2/3 (2006), DIN 17212 (1972)
CHEMICAL COMPOSITION (mass fraction - %)
Carbon, C (%): 0.38 ~ 0.44
Silicon, Si (%): 0.15 ~ 0.40
Manganese, Mn (%): 0.50 ~ 0.80
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 /℃|normalizing:   840~880
Heat treatment temperature /℃|quenching:     820~850Water,830~860Oil 
Heat treatment temperature /℃|tempering:     540~680
Heat treatment temperature /℃|surface hardening:  820~850
Surface hardness  HBC≤: 54~60 
Size /mm:    ≤16
Tensile strength, Rm ≥ MPa:  1080 ~ 1270
Yield strength, Rp0.2 ≥ MPa:   835
Elongation, A5 ≥ (%):  0.0
Reduction of area, Z ≥ (%): 40.0
Impact strength, AKv ≥ J: 35
Size /mm:  16 ~ 40
|σb≥/MPa:   980 ~ 1080
|σs≥/MPa:   765
|δ5≥(%):     11.0
|ψ≥(%):       45.0
|AKV≥/J:      42
Size /mm:    40 ~ 100
|σb≥/MPa:   880 ~ 1080
|σs≥/MPa:    635
|δ5≥(%):     12.0
|ψ≥(%):      50.0
|AKV≥/J:      42
Size /mm:    100 ~ 250
|σb≥/MPa:   740 ~ 930
|σs≥/MPa:    510
|δ5≥(%):     14
|ψ≥(%):       55
|AKV≥/J:      42
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, Pressure vessel.
PRODUCT PROFILE & DIMENSIONS
Round bar / rod / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 400mm X W100 - 1000mm X L1000 - 5000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 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.
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.       

 

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