X40MnCr18 datasheet,X40MnCr18 chemical,X40MnCr18 heat treatment

X40MnCr18
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Description X40MnCr18 Ex-stock, Factory X40MnCr18 cold drawn, Inventory X40MnCr18 Ring forge Steelmaking, ESR, Hot blooming, Hot forging & Rolling, Heat treatment, Straightened, Ultrasonic test, Cold working, Machined. We also possess advanced precision machining equipments for further processing. Technical standards - DIN EN 10090 (1998), DIN 17480 (1992) or by agreement.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS BV

TECHNICAL DATASHEET - Grade DIN X40MnCr18
MATERIAL CATEGORY - Valve steel
MATERIAL SPECIFICATIONS - DIN EN 10090 (1998), DIN 17480 (1992)
CHEMICAL COMPOSITION ( MASS WEIGHT %)
C (%):     0.30 ~ 0.50
Si (%):     ≤ 1.00
Mn (%):   17.0 ~ 19.0
P (%)≤:   0.060
S (%)≤:   0.030
Cr (%):    3.00 ~ 5.00
Ni (%):    ≤ 1.00
Mo (%):   -
N (%):     ≤ 0.10
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Hot forming temperature /℃: 1150~950
Heat treatment temperature and cooling method | annealed:    -     
Heat treatment temperature and cooling method | quenched:  1000~1100 oil/water
Heat treatment temperature and cooling method | tempered:   -
Mechanical property |σb/MPa:    750~950
Mechanical property |σs≥/MPa:  280
Mechanical property |δ5≥(%):    35.0   
Mechanical property |ψ≥(%):     40.0
Mechanical property above 400℃ σb/MPa,at following temperature /℃|400:    -
Mechanical property above 400℃ σb/MPa,at following temperature /℃|500:    -
Mechanical property above 400℃ σb/MPa,at following temperature /℃|600:    -
Mechanical property above 400℃ σb/MPa,at following temperature /℃|700:    -
Mechanical property above 400℃ σb/MPa,at following temperature /℃|800:    -
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.
AVAILABLE FORMS & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T10 - 400mm X W20 - 1000mm X L1000 - 5000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /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. E-mail: sales@ccsteels.com

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