1.4785
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DIN EN 10090 Specifications 1.4785 Round bar, Flat bar, Ring forging - steelmaking, ESR, Blooming, hot forging, Heat treatment, Cold machined.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - W-Nr 1.4785
MATERIAL CATEGORY - Valve steel
MATERIAL SPECIFICATIONS - DIN EN 10090 (1998), DIN 17480 (1992)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.57 ~ 0.65
Silicon, Si (％): ≤ 0.25
Manganese, Mn (％): 9.50 ~ 11.5
Phosphorus, P (％) ≤: 0.050
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 20.0 ~ 22.0
Nickel, Ni (％): ≤ 1.50
Molybdenum, Mo (％): 0.75 ~ 1.25
Vanadium, V (％): 0.75 ～ 1.00
Silicon, Si (％): ≤ 0.25
Manganese, Mn (％): 9.50 ~ 11.5
Phosphorus, P (％) ≤: 0.050
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 20.0 ~ 22.0
Nickel, Ni (％): ≤ 1.50
Molybdenum, Mo (％): 0.75 ~ 1.25
Vanadium, V (％): 0.75 ～ 1.00
Niobium, Nb (%): 1.00 ~ 1.20
Nitrogen, N (%): 0.40 ~ 0.60
PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 8mm to 610mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / rod / disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 8mm to 610mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T60 - 400mm X W70 - 1000mm X L1000-12000mm
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.
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.
MECHANICAL PROPERTIES UNDER HEAT TREATMENT + A / Q/T
Hot forming temperature /℃: 1100～950
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1180～1200 Air
Heat treatment temperature and cooling method | tempered: 650~700
Mechanical property | Rm / MPa: 1000～1250
Mechanical property | Rp0.2 ≥ MPa: 800
Mechanical property | A5 ≥ (％): 8.0
Mechanical property | Z ≥ (％): 10.0
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 800
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 750
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 600
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 400
Hot forming temperature /℃: 1100～950
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1180～1200 Air
Heat treatment temperature and cooling method | tempered: 650~700
Mechanical property | Rm / MPa: 1000～1250
Mechanical property | Rp0.2 ≥ MPa: 800
Mechanical property | A5 ≥ (％): 8.0
Mechanical property | Z ≥ (％): 10.0
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: -
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 800
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 750
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 600
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 400
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
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