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EN19 steel its properties and application

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EN19 is a high quality, high tensile steel usually supplied readily machine able in ‘T’ condition, giving good ductility and shock resisting properties combined with resistance to wear. – PowerPoint PPT presentation

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Title: EN19 steel its properties and application


1
EN19 steel its properties and application
2
What is EN19 steel?
  • EN19 is a high quality, high tensile steel
    usually supplied readily machine able in T
    condition, giving good ductility and shock
    resisting properties combined with resistance to
    wear.

3
Chemical Composition
Element Min Max
Carbon, C 0.35 0.45
Manganese, Mn 0.50 0.80
Silicon, Si 0.10 0.35
Nickel, Ni -.-- -.--
Molybdenum, Mo 0.20 0.40
Chromium,Cr 0.90 1.50
Sulfur, S -.-- 0.05
Phosphorous, P -.-- 0.05
4
Mechanical Properties
Heat  Treatment Tensile  Strength  Rm N/mm² Yield  Stress  Re N/mm² a on  5.665ÖSo Impact Izod J Impact KCV J Proof  Stress rp0.2 Hardness HB Size  mm
R 700/850 495 15 34 28 480 201/225 gt100250
S 775/925 555 13 27 22 540 223/277 gt150250
S 775/925 585 15 54 50 570 223/277 gt63150
T 850/1000 680 13 54 50 655 248/302 gt29100
U 925/1075 755 12 47 42 740 269/331 gt1363
V 1000/1150 850 12 47 42 835 293/352 gt629
W 1075/1225 940 12 40 35 925 311/375 gt619
5
Applications
  • EN19T was originally introduced for the use in
    the machine tool and motor industries for gears,
    pinions, shafts, spindles and the like. Later its
    applications became much more extended and it is
    now widely used in areas such as the oil and gas
    industries. EN19T is suitable for applications
    such as gears, bolts, studs and a wide variety of
    applications where a good quality high tensile
    steel grade is suited

6
  • Forging
  • Pre heat carefully, then raise temperature to
    850-1200C for forging. Do not forge below 850C.
    After forging cool slowly in still air.
  • Annealing
  • Heat the EN19T slowly to 680-700C. Cool in air.
  • Hardening
  • This steel grade is commonly supplied ready heat
    treated. If further heat treatment is required
    annealed EN19 should be heated slowly to
    860-890C and after adequate soaking at this
    temperature quench in oil. Temper as soon as
    tools reach room temperature.

7
  • Tempering
  • Heat carefully to a suitable temperature selected
    by reference to a tempering chart or table. Soak
    at the temperature for 2 hours per 25mm of ruling
    section, then allow to cool in air. Tempering
    between 250-375C is not advised as tempering
    within this range will reduce the impact value.
  • Heat Treatment
  • Heat treatment temperatures, including rate of
    heating, cooling and soaking times will vary due
    to factors such as the shape and size of each
    steel component. Other considerations during the
    heat treatment process include the type of
    furnace, quenching medium and work piece transfer
    facilities. Please consult your heat treatment
    provider for full guidance on heat treatment of
    EN19T alloy steel.

8
En19 Carbon Steel UAE
  • Al Hilal Engineering Equipment
  • P.O.BOX 25996, MUSSAFAH ABU DHABI , U.A.E  971 2
    555 2377  971 2 555 2388
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