X55CrMnNiN20-8
2015-02-14 10:06:37 Origin： Remark：0 Click：
Specification X55CrMnNiN20-8 Round bar, Flat bar, ESR ingot, Ring Steelmaking, ESR, Hot Forging, Rolling, Heat treatment
TECHNICAL DATA SHEET - DIN X55CrMnNiN20-8
MATERIAL CATEGORY - Valve steel
MATERIAL SPECIFICATIONS - DIN EN 10090 (1998), DIN 17480 (1992)
EX - STOCK: 3.5 X 200 X 2000mm
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.50 ~ 0.60
Silicon, Si (％): ≤ 0.25
Manganese, Mn (％): 7.00 ~ 10.0
Phosphorus, P (％) ≤: 0.045
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 19.5 ~ 21.5
Nickel, Ni (％): 1.50 ~ 2.75
Molybdenum, Mo (％): ≤ 0.50
Silicon, Si (％): ≤ 0.25
Manganese, Mn (％): 7.00 ~ 10.0
Phosphorus, P (％) ≤: 0.045
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 19.5 ~ 21.5
Nickel, Ni (％): 1.50 ~ 2.75
Molybdenum, Mo (％): ≤ 0.50
Nitrogen, N (％): 0.20 ~ 0.40
MECHANICAL PROPERTIES HEAT TREATMENT OR Q/T)
Hot forming temperature /℃: 1100～950
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1140～1180 Water
Heat treatment temperature and cooling method | tempered: 760~815
Mechanical property, Rm / MPa: 900～1150
Mechanical property, Rp0.2 ≥ MPa: 550
Mechanical property, A5 ≥ (％): 8
Mechanical property, Z ≥ (％): 10
Hot forming temperature /℃: 1100～950
Heat treatment temperature and cooling method | annealed: -
Heat treatment temperature and cooling method | quenched: 1140～1180 Water
Heat treatment temperature and cooling method | tempered: 760~815
Mechanical property, Rm / MPa: 900～1150
Mechanical property, Rp0.2 ≥ MPa: 550
Mechanical property, A5 ≥ (％): 8
Mechanical property, Z ≥ (％): 10
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.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5 ~ 450mm
Square bar / Flat bar: 8 ~ 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 5.5 ~ 450mm
Square bar / Flat bar: 8 ~ 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 450mm X W50 - 1000mm X Lmm
Sheet steel via cold rolled: T0.5 - 6mm X W100 - 1000mm X Lmm
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 Lmm
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 (sales@ccsteels.com) our resident team of qualified production engineers.
If you meet further on any technical enquiry, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
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