Latest News

Home » Material Grades » Cold Rolled Steels » ISO 3574 Deep Drawing Quality Cold Rolled CR4 Steel

ISO 3574 Deep Drawing Quality Cold Rolled CR4 Steel

What are CR4 Steels? CR4 steels are deep drawing quality Aluminum Killed (non-aging) mild steel revealed in ISO 3574 and are graded correspondent to SPCF steels in JIS G3141 standard. The only difference between CR3 & CR4 steels is that CR4 steels are non-aging steel and are very slowly deteriorated in mechanical properties with respect to time.

Dimensional Range of CR4 Steel: CR4 Steels is available from thickness series 0.25 mm to 4.0 mm. The width is typically 950 mm, 1219 mm, 1500 mm and 2000 mm.

Chemical Composition of CR4 Steel:  The chemical composition of CR4 Steels is contained by 0.08 percent of Carbon maximum, 0.40 percent of manganese maximum,  0.030 percent of Sulphur maximum, 0.02 percent of Phosphorous maximum, and remaining percentage is of iron (Fe) with negligible impurities.

Mechanical Properties of CR4 Steel: The mechanical properties of CR4 Steels are related to SPCF steels, but contrasting the JIS G3141 standard, the ISO 3574 standard does not categorize the minimum tensile strength but it determines the maximum range. The maximum yield strength is 210 MPa, the utmost tensile strength is 350 MPa and least elongation is 38 percent. The hardness is 50 HRB maximum.

As compare to CR3 Steel, this grade of steel is additionally draw-able & adequate for extra deep drawing operations.

About

Engineer Ali Alvi is an industrial engineer who has post graduated from the NED University, then completed his Masters in Industrial Engineering from the University of Ontario. He has also served as an engineer in International Steel Ltd as A Cold rolling mill engineer.

  1. GK Murthy says:

    sir.
    we want CR4 grade steel 1mmX150mmX70mm strips.(ISO 3574)

    1. admin says:

      Check your e-mail.
      Thanks

      1. ivan says:

        sir.
        we want CR4 grade steel 1mmX150mmX70mm strips.(ISO 3574)

    2. Hemank Shah says:

      Dear sir,
      We want Cr4 coil of the following specifications:-
      1.5mm x 1500 x coil – 10 ton

      Kindly quote us the price for the following with the delivery period

      Thank you.

  2. ALICJA KOŚCIELSKA says:

    sir.
    we want CR4 grade steel 1mmX150mmX70mm strips.(ISO 3574)
    regards

  3. Hafzil says:

    Hi Sir,

    Could you please provide me the details quotation as below:

    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Ra : 0.8 micrometre
    Spec : ISO 3574
    Other requirement : Material free from pores, marks, scratches and any light colouration.
    Qty required : 50 pcs

    1. admin says:

      Hi Hafzil

      Are you interested to get material in Malaysia?? Please let us know about it.

  4. Takabe Yu says:

    Hello we need to buy testing specimens
    is there a recommended supplier for this in the USA ?
    specimens of 1 mm ± 0,2 mm thickness and 150 mm × 70 mm,
    of CR4-grade steel in accordance with ISO 3574 with an essentially faultless surface2) and a m att finish, (arithmetical mean deviation of the profile Ra = 0,8 μm ± 0,3 μm). Cut these reference specimens from cold rolled
    plates or strips.

  5. nida says:

    Hello;
    we need specimens of 1 mm ± 0,2 mm thickness and 150 mm × 70 mm, of CR4-grade steel in accordance with ISO 3574 with an essentially faultless surface2) and a m att finish, (arithmetical mean deviation of the profile Ra = 0,8 μm ± 0,3 μm). Cut these reference specimens from cold rolled plates or strips.
    could you give price and time schedule information for Turkey
    thank you

  6. jon says:

    Hello Adam,
    You say that CR4 is very slow to change with time, I wonder what is a representative length of time here?
    I spin steel by hand so on thicker grades I need the steel to be as easily drawn as possible.
    I suspect that my supplier may be supplying me older metal, it is tougher to work than the CR4 I was previously able to source.
    For hand working where the ease of draw is critical what kind of shelf life do you envisage with CR4? Six months? Two years?

    Kind regards
    Jon

    1. Adam Rudolf says:

      Six months would be appropriate, I think you should ask the supplier the manufacturing date as well to avoid any issues with drawing.

  7. Dr. Victor Andrade says:

    Hi, we need to buy reference specimens 1 mm ± 0,2 mm thickness and 150 mm × 70 mm, of CR4 grade steel (according to ISO 3574).
    Thanks a lot in advance.

  8. Julia Hsieh says:

    Hello,

    Looking to purchase 50 pcs of CR4 Grade Steel Panel, 150 x 70 x 1 (+/-0.2mm), with the following parameters:
    1) 1mm±0.2mm Thickness and 150mm X 70mm, of CR4 Grade Steel in Accordance with ISO 3574 with an essentially ‘Faultless’ surface and a Matt Finish.
    2) Arithmetical Mean Deviation of the Profile Ra=0.8μm±0.3μm
    3) Cut these Reference Specimens from Cold-Rolled Plates or Strips. No scratches on surface.
    4) COC is required.

    Would be shipping to California, USA (Zip: 90301).

    Please provide a quote (with estimated delivery time).

    Thanks!

  9. Noor Mohammad Sarker says:

    Hi Sir,
    Could you please provide me the details quotation as below:
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Ra : 0.8 micrometre
    Spec : ISO 3574
    Other requirement : Material free from pores, marks, scratches and any light colouration.
    Qty required : 50 pcs

  10. gokulakrishnan says:

    i need CR4 grade steel (iso3574)with dimension of 150mm*70mm please refer retailers around chennai location

  11. May says:

    Hello Admin,
    We are looking for Material CR4-grade steel in accordance with ISO 3574 with an essential faultless surface1 and matt finish (arithmetical mean deviation of the profile Ra = 0.8 ± 0.3 µm.
    Size: 150 × 70 mm × 1 ± 0.2 mm thickness.
    Qty : 12 ea or MOQ

  12. Ef says:

    Dear Sir

    We alse need this
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Spec : ISO 3574
    Qty required : 80 pcs

    Are you able to help us?

  13. Francesco says:

    Dear Sir, I need these
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Spec : ISO 3574
    Qty required : 48 pcs
    Are you able to help me? Deliver to Italy

  14. Pedro Tomás says:

    Hi Sir,
    Could you please provide me the details quotation as below:
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Ra : 0.8 micrometre
    Spec : ISO 3574
    Other requirement : Material free from pores, marks, scratches and any light colouration.
    Qty required : 50 pcs

    Deliver to Portugal

  15. Brian Wong says:

    Dear Sir/ Madam,
    We would like to purchase the CR4-Grade steel for the testing of ISO 9227. Please advise the price, thanks.
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Spec : ISO 3574

  16. Carmen Ng says:

    Dear Sir/Madam,
    I am looking for CR4-grade steel in accordance with ISO 3574. Has to be free from pores, marks, scratches and any light colouration.
    Quantity: 12pcs
    Size: 1mm thickness and 150mm x 70mm
    Matt finish (Ra = 0.8 micron)
    Please kindly provide me a quotation.
    Thanks.
    Carmen

  17. Patricio Gonzalez says:

    Dear Sir/ Madam,
    We would like to purchase the CR4-Grade steel for the testing of ISO 9227. Please advise the price, thanks.
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Spec : ISO 3574

  18. Luciano Caldera says:

    Sir,
    we need specimens of 1 mm ± 0,2 mm thickness and 150 mm × 70 mm, of CR4-grade steel in accordance with ISO 3574. Has to be free from pores, marks, scratches and any light colouration.
    Could you give price and time schedule information for Italy.
    thank you, best regards

  19. Amal G BaBu says:

    Give me your e mail id Please

  20. Rohana LATIP says:

    Hi, cs team
    I would like to purchase 100 pcs of CR4 grade steel in accordance with ISO 3574
    Size : 150mm x 70mm thickness 1 + 0.2mm
    Do you have any local distributor in Singapore whom I can purchase directly, or otherwise provide the quotation
    including the shipping cost ( door to door ) & lead time.
    Looking forward to hearing from you soon.

  21. A.Umar Farook says:

    Hello;
    we need specimens of 1 mm ± 0,2 mm thickness and 150 mm × 70 mm, of CR4-grade steel in accordance with ISO 3574 with an essentially faultless surface2) and a m att finish, (arithmetical mean deviation of the profile Ra = 0,8 μm ± 0,3 μm). Cut these reference specimens from cold rolled plates or strips.

  22. CARLOS ROBERTO ANDREOLI says:

    Dear Sir
    We would like to purchase the CR4-Grade steel for the testing of ISO 9227. Please advise the price, thanks.
    Material : CR4 -Grade Steel
    Dimension : 1 mm x 150 mm x 70 mm
    Spec : ISO 3574
    Do you send the material to Brazil?

  23. Dr. P. I. Christodoulou says:

    Dear Sir/Madam,
    I am looking for CR4-grade steel in accordance with ISO 3574. Has to be free from pores, marks, scratches and any light colouration.
    Quantity: 24pcs
    Size: 1mm thickness and 150mm x 70mm
    Matt finish (Ra = 0.8 micron)
    Please kindly provide me a quotation.
    Thanks.
    Peter

  24. Kevin Lemessy says:

    Good day,
    Could you please provide me with a quotation CR4 -Grade Steel in accordance with ISO 3574.
    Dimension : 1 mm x 150 mm x 70 mm
    Matt finish (Ra = 0.8 micrometre)
    Other requirement : Material free from pores, marks, scratches and any light colouration.
    Qty required : 24 pcs

  25. Justyna says:

    Hello.
    I need to buy testing specimens. Is there a recommended supplier for this in Poland, or somewhere close in Europe ? Specimen: 1 mm ± 0,2 mm thickness and 150 mm × 70 mm, of CR4-grade steel in accordance with ISO 3574 with an essentially faultless surface and a matt finish, (arithmetical mean deviation of the profile Ra = 0,8 μm ± 0,3 μm). Cut these reference specimens from cold rolled plates or strips.

Leave a Reply

Your email address will not be published. Required fields are marked *

*
*