1.4748
2025-12-19 10:49:00 Origin： Remark：0 Click：
DIN EN 10090 specification 1.4748 hot rolled wire rod, peeled round bar, hexagon bar, plate ESR, hot bloomed, forged, rolled, heat treat
TECHNICAL DATA SHEET - W-Nr 1.4748
Material category - valve steel
Technical specifications - DIN EN 10090 (1998), DIN 17480 (1992)
Typical chemical compositions (mass weight %)
Carbon, C (％): 0.80 ~ 0.90
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.50
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 16.5 ~ 18.5
Nickel, Ni (％): -
Molybdenum, Mo (％): 2.00 ~ 2.50
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.50
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 16.5 ~ 18.5
Nickel, Ni (％): -
Molybdenum, Mo (％): 2.00 ~ 2.50
Vanadium, V (％): 0.30 ~ 0.60
MECHANICAL PROPERTIES HEAT TREATMENT OR Q/T
Hot forming temperature /℃: 1100～900
Heat treatment temperature and cooling method | annealed: 820~860
Heat treatment temperature and cooling method | quenched: 1050～1080 Oil
Heat treatment temperature and cooling method | tempered: 700~800
Mechanical property |σb / MPa: 1000～1200
Mechanical property | σs ≥ MPa: 800
Mechanical property | δ5 ≥ (％): 7
Mechanical property | ψ ≥ (％): 12
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 550
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 300
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 180
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 100
Hot forming temperature /℃: 1100～900
Heat treatment temperature and cooling method | annealed: 820~860
Heat treatment temperature and cooling method | quenched: 1050～1080 Oil
Heat treatment temperature and cooling method | tempered: 700~800
Mechanical property |σb / MPa: 1000～1200
Mechanical property | σs ≥ MPa: 800
Mechanical property | δ5 ≥ (％): 7
Mechanical property | ψ ≥ (％): 12
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 550
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 300
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 180
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 100
FEATURES AND CLASSIFICATIONS
Valve steel is an important sub-branch of heat resistant steels, the special material is for processing the vent valve & intake valve of combustion engines. This steel material is always under the high temperature 450 ~ 900℃ and in the operating conditions of 3000~7000kPa explosion pressure. It longly stands up to the gas-fired high temperature corrosion,scouring of gasoline,diesel and also friction from valve seats. Hence, the valve steel material must have enough heat resistance,high temperature resistance corrosivity,inoxidizability,abrasive resistance and impact resistance under the highest working temperature.
REMELTING PROCESS
Valve steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
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.
PRODUCT PROFILE AND DIMENSIONS
Round bar / rod (diameter): 6.0 to 450 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Round bar / rod (diameter): 6.0 to 450 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T10 ~ 400 X W70 ~ 1000 X L1000 ~ 12000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W60 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W5 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6 X W60 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W5 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
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