21 Years Factory BS EN 42CrMo4 | 1.7225 Alloy Engineering Steel in St. Petersburg

21 Years Factory
 BS EN 42CrMo4 | 1.7225 Alloy Engineering Steel in St. Petersburg

Short Description:

BS EN 42crmo4 Alloy Steel is a common chromium-molybdenum steel that usually used after quenchedand tempered, with high intensity, high hardenability. BS EN 42CrMo4round steel has better performance than 34CrMo4 steel due to the carbonand chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material alsohas high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious. Although 42CrMo4 steel is mo...


  • Length: 3-5.8mm or Customization
  • Surface: black, peeled, or rough turned
  • Heat treatment: air-cooling, normalized, annealed, Q&T
  • Smelting process: EAF+LF+VD
  • Product Detail

    Product Tags

    abide by the contract", conforms to the market requirement, joins in the market competition by its high quality as well as provides more comprehensive and excellent service for clients to let them become big winner. The pursue of the company, is the clients' satisfaction for 21 Years Factory BS EN 42CrMo4 | 1.7225 Alloy Engineering Steel in St. Petersburg, Create Values,Serving Customer!" is the aim we pursue. We sincerely hope that all customers will establish long term and mutually beneficial cooperation with us.If you wish to get more details about our company, Please contact with us now.


    BS EN 42crmo4 Alloy Steel

    is a common chromium-molybdenum steel that usually used after quenched
    and tempered, with high intensity, high hardenability. BS EN 42CrMo4
    round steel has better performance than 34CrMo4 steel due to the carbon
    and chromium content is higher. 42CrMo4 alloy steel

    has higher strength and hardenability. The 42CrMo4 alloy material also
    has high fatigue strength and good low-temperature impact toughness. The

    temper brittleness is not obvious.

    Although 42CrMo4 steel is more expensive than 41Cr4 steel, it is more

    preferable in terms of material properties. EN 42CrMo4 alloy
    engineering steel materials have been widely used in automotive driving
    elements. Otai Steel is able to supply you prime quality of 42CrMo4
    alloy steel materials with wide range.

    1.42CrMo4 Alloy Steel Supply Range

    42CrMo4 Round bar Sizes: 80mm – 1200mm
    Steel 42CrMo4 Flat and Plate: 10mm-1500mm thickness x 200-3000mm width
    Other steel shape and sizes available according to your requirements.

    Surface condition: Black, rough machined, peeled, turned or other requirements according to your requirements.

    2.BS EN 42CrMo4 Alloy Steel Relevant Specifications and Equivalents

    BS EN 10250 Material No. DIN ASTM A29 JIS G4105 BS 970-3-1991 BS 970-1955 AS 1444 AFNOR
    42CrMo4 1.7225 38HM 4140 SCM440 708M40 EN19A 4140 42CD4

    3.42CrMo4 Alloy Steel Chemical Composition

    42CrMo4/1.7225 C Mn Si P S Cr Mo
    0.38-0.45 0.60-0.90 0.40 max 0.035 max 0.035 max 0.90-1.20 0.15-0.30

    4. DIN 42CrMo4 Alloy Steel Mechanical Properties

    Size Ø mm Yield stress
    Rp0.2,N/nn2, min.
    Ultimate tensile Stress,
    Rm,N/nn2
    Elongation
    A5,%, min.
    Hardness HB Toughness
    KV, Joule, min.
    <40 750 1000-1200 11 295-355 35 at 20ºC
    40-95 650 900-1100 12 265-325 35 at 20ºC
    >95 550 800-950 13 235-295 35 at 20ºC

    5. Heat Treatment of 42CrMo4 Steels

    Annealing of 42CrMo4 Steels

    • Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;

    • Cool slowly in the furnace to the temperature 480°;

    • Complete annealing the steel in the air.

    Quenched and Tempered (Q+T)

    • Heat 42CrMo4 steel slowly to 880°C;

    • Soak at this temperature then quench in oil;

    • Temper as soon as 42CrMo4 steel reach room temperature (20°C);

    • Heat uniformly to the suitable temperature of 560°C;

    • Withdraw the 42CrMo4 material from the furnace and cool in the air.

    6. Forging of 42CrMo4 Alloy Steel

    • Preheat 42CrMo4 engineering steel uniformly and slowly;

    • Increase the forging temperature up to 1150-1200°C.

    • Always keep the forging temperature above at least 850°C

    7.Weldability

    Engineering

    steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is
    strongly recommended; the upper limit should not be exceeded because of
    risk for deterioration of the chrome layer.

    Alloy steel 42CrMo4
    can be friction welded. However, precautions are necessary so as to
    limit the formation of undesirable microstructures in the welded zone.

    8.Application of 42CrMo4 Alloy Steels

    EN

    42CrMo4 alloy steel is widely used for engineering steel purpose, such
    as: making various kinds of machinery, automobile, mining spare part,
    the gearwheel of the engine, the driving gear of supercharger, the
    connecting rob, the pinchock under the high pressure, parts for power
    train applications, cold formed fastener components, shafts, gears,
    drill collars for the oil exploration, etc.

  • Previous:
  • Next:



  • Description
    Offered specification
    1 Material Width According to the final design
    2 Forming Speed 6-8m/min(including punching)
    3 Rolling Thickness 2-3.5mm(according to the customers’ require)
    4 Control System PLC (Panasonic) as list in the note
    5 Un Coiler 5 ton hydraulic un-coiler
    6 Roller Stations about 20 stations
    7 Roller Material GCR15 quenched 58°-62°,chromed
    8 Shaft Material and DIA ¢100mm, material is 45# forge steel
    9 Maim Motor Power 55kw
    10 Hydraulic Station Power 5.5kw
    11 Hydraulic Pressure 25Mpa
    12 Material Of Cutting Cr12 quenching 58-62℃
    13 Station Type Guide pillar Structure
    14 Tolerance 3m±1.5mm
    15 Electric Source 380V, 50HZ,3 phase
    16 Way Of Drive by gear box
    17 Color Of The Machine Yellow and blue
    18 Size Of The Machine L*W*H 14m*2m*1.8m
    19 Container Need 1 x40 GP
    20 Deliver Time 60 days
    www.jszecheng.com



    Follow us at: https://plus.google.com/+tutorvista/

    Check us out at http://chemistry.tutorvista.com/inorganic-chemistry/metallurgy.html

    Froth Floatation Process

    Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in several processing industries. Historically this was first used in the mining industry
    The following steps are followed:
    1.Grinding to liberate the mineral particles
    2.Reagent conditioning to achieve hydrophobic surface charges on the desired particles
    3.Collection and upward transport by bubbles in an intimate contact with air or nitrogen
    4.Formation of a stable froth on the surface of the flotation cell
    5.Separation of the mineral laden froth from the bath (flotation cell)
    Simple flotation circuit for mineral concentration. Numbered triangles show direction of stream flow, Various flotation reagents are added to a mixture of ore and water (called pulp) in a conditioning tank. The flow rate and tank size are designed to give the minerals enough time to be activated. The conditioner pulp [1] is fed to a bank of rougher cells which remove most of the desired minerals as a concentrate. The rougher pulp [2] passes to a bank of scavenger cells where additional reagents may be added. The scavenger cell froth [3] is usually returned to the rougher cells for additional treatment, but in some cases may be sent to special cleaner cells. The scavenger pulp is usually barren enough to be discarded as tails. More complex flotation circuits have several sets of cleaner and re-cleaner cells, and intermediate re-grinding of pulp or concentrate.
    froth flotation cell. Numbered triangles show direction of stream flow. A mixture of ore and water called pulp [1] enters the cell from a conditioner, and flows to the bottom of the cell. Air [2] or nitrogen is passed down a vertical impeller where shearing forces break the air stream into small bubbles. The mineral concentrate froth is collected from the top of the cell [3], while the pulp [4] flows to another cell.

    Please like our facebook page

    http://www.facebook.com/tutorvista

    Send your message to us:

    INQUIRY NOW
    • * CAPTCHA: Please select the Tree

    Related Products

    INQUIRY NOW
    • * CAPTCHA: Please select the Cup