1.6948
2016-11-17 14:43:30 Origin： Remark：0 Click：
Technical specifications of hardening alloy steel W-Nr 1.6948 Round bar, Flat bar, Forgings, DIN 1.6948 Stock available, Electroslag remelting, Heat treatment
TECHNICAL DATA SHEET - W-Nr 1.6948
MATERIAL CATEGORY: hardened and tempered steel
CHEMICAL COMPOSITION ( mass weight - %)
Carbon, C (％): 0.22 ~ 0.32
Silicon, Si (％): ≤ 0.15
Manganese, Mn (％): 0.15 ~ 0.40
Silicon, Si (％): ≤ 0.15
Manganese, Mn (％): 0.15 ~ 0.40
Phosphorus, P (％) ≤: 0.020
Sulfur, S (％) ≤: 0.010
Sulfur, S (％) ≤: 0.010
Chromium, Cr (％): 1.20 ~ 1.80
Molybdenum, Mo (％): 0.25 ~ 0.45
Nickel, Ni (％): 2.40 ~ 3.10
Vanadium, V (％): 0.05 ~ 0.15
Molybdenum, Mo (％): 0.25 ~ 0.45
Nickel, Ni (％): 2.40 ~ 3.10
Vanadium, V (％): 0.05 ~ 0.15
Hot working temperature /℃: 1050 ~ 850
Heat treatment temperature /℃| annealing: 650～700
Heat treatment temperature /℃| annealing: 650～700
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 830~850oil
Heat treatment temperature /℃| Tempering: 450~650
Hardness after annealing ≤HBS: 265
Heat treatment temperature /℃| Quenching: 830~850oil
Heat treatment temperature /℃| Tempering: 450~650
Hardness after annealing ≤HBS: 265
Tensile strength, |σb≥/MPa: 850
Yield strength, |σs≥/MPa: 750
Elongation, |δ5≥/(%): 18.0
Reduction of area, |ψ≥/(%): 42.0
Yield strength, |σs≥/MPa: 750
Elongation, |δ5≥/(%): 18.0
Reduction of area, |ψ≥/(%): 42.0
PRODUCT DESCRIPTION
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.
PRODUCT PROFILE
Round bar / Disc (diameter): 5.50mm to 850mm
Square bar / Flat bar: 8mm to 600mm
Plate / Steel strip: 0.1mm to 1000mm
Steel sheet: thickness 0.50 ~ 6.00mm, width 1000mm X length 1000/2000mm - Standard size
Length: random length or based on the customer's special requirement
Forged steel shape: stepped shaft, and other different shapes based on OEM
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: lh.steel@hotmail.com
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