1.4731
2015-02-11 10:52:09 Origin： Remark：0 Click：
DIN EN 10090 Material Specification 1.4731 Wire rod, round bar, Chemical 1.4731 Ring forging, stock available, ESR, Hot forging, rolling, heat treatment
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - W-Nr 1.4731
MATERIAL CATEGORY - Valve steel
EX-STOCK - Wire rod Diam.5.5 ~ 13.0mm, Round bar Diam.16 ~ 60mm
MATERIAL SPECIFICATIONS - DIN EN 10090 (1998), DIN 17480 (1992)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.35 ~ 0.45
Silicon, Si (％): 2.00 ~ 3.00
Manganese, Mn (％): ≤ 0.80
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 9.50 ~ 11.50
Nickel, Ni (％): -
Molybdenum, Mo (％): 0.80 ~ 1.30
Silicon, Si (％): 2.00 ~ 3.00
Manganese, Mn (％): ≤ 0.80
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 9.50 ~ 11.50
Nickel, Ni (％): -
Molybdenum, Mo (％): 0.80 ~ 1.30
MECHANICAL PROPERTIES UNDER HEAT TREATMENT
Hot forming temperature /℃: 1100～900
Heat treatment temperature and cooling method | annealed: 780~820
Heat treatment temperature and cooling method | quenched: 1020～1070 Oil
Heat treatment temperature and cooling method | tempered: 720~820
Mechanical property | σb / MPa: 900～1100
Mechanical property | σs ≥ MPa: 700
Mechanical property | δ5 ≥ (％): 14
Mechanical property | ψ ≥ (％): 40
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: 780
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 520
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 270
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 130
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 70
Hot forming temperature /℃: 1100～900
Heat treatment temperature and cooling method | annealed: 780~820
Heat treatment temperature and cooling method | quenched: 1020～1070 Oil
Heat treatment temperature and cooling method | tempered: 720~820
Mechanical property | σb / MPa: 900～1100
Mechanical property | σs ≥ MPa: 700
Mechanical property | δ5 ≥ (％): 14
Mechanical property | ψ ≥ (％): 40
Mechanical property above 400℃ σb/MPa，at following temperature /℃|400: 780
Mechanical property above 400℃ σb/MPa，at following temperature /℃|500: 520
Mechanical property above 400℃ σb/MPa，at following temperature /℃|600: 270
Mechanical property above 400℃ σb/MPa，at following temperature /℃|700: 130
Mechanical property above 400℃ σb/MPa，at following temperature /℃|800: 70
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.
PROFILE & DIMENSIONS
Round bar / rod (diameter): 5.5mm to 300mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length
Round bar / rod (diameter): 5.5mm to 300mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length
Heavy/middle plate via hot rolled: T60 - 400mm X W60 - 1000mm X Lmm
Forging piece: stepped shafts, other different shapes based on OEM.
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.
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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