JIS G 3141 Commercial Cold Rolled SPCC Steels

What is SPCC Steels? SPCC steel is a commercial quality cold rolled steel. SPCC is a material grade and designation defined in JIS G 3141 standard. As a basic Carbon Steel it can be enumerated in dead mild steel. What is JIS G 3141? JIS G 3141 is a Japanese material standard for cold rolled steel.


Why Purchasing sample of this type of steel is significant for making your product? Purchasing sample of this type of steel is important for product development. By purchasing this material you can examine how this material can behave under the manipulative processes you will apply on it.

Purchase samples’ sheets for experimentation purposes in American equivalent material grade 1008 online by ordering from the online store.

What is Commercial Quality Cold Rolled Steel? The commercial quality cold rolled steel is a type of steel that can be used commercially for forming purposes that can also include shearing of a metallic sheet. Common operations that can be done on such steels are:

  • Bending
  • Curling
  • De-cambering
  • Blanking
  • Shaping
  • Lancing
  • Piercing
  • Notching

Why is SPCC material called cold rolled Steel? When a material grade is specified as cold rolled steel, it means it has been subjected to a manipulative process of cold rolling in which a metal bar is passed through high tension rollers below the re-crystallization temperature of the steel. The roller does not only decrease the thickness of the sheets but also refines the grain structure and hardens the steels.  SPCC steels add more good dimensional properties than SPHC Steels. Also, after the cold rolling process there are some additive processes like rewinding, annealing, and then skin passing to make a complete SPCC material with bright finish.

Available Forms in Market: Following are the available forms of SPCC steels in the global market:

  • Mill Edge Coils
  • Slit Edge Coils
  • Cut to Length Sheetsspcc-steel-cut-to-length-sheets-300x225

Dimensional Characteristics of SPCC Steels: The applicable thickness for this SPCC material as defined in the JIS 3141 starts from 0.25  mm to 2.5  mm or over. However the width of SPCC material ranges to 2000 mm.

The Chemical Composition of SPCC Steels: JIS G 3141 defines the chemical composition of SPCC steels as under:

  • Maximum percentage of Carbon (C) is 0.15 percent.
  • Maximum percentage of Manganese (Mn) is 0.60 percent.
  • Maximum percentage of Phosphorous (P) is 0.050 percent.
  • Maximum percentage of Sulphur (S) is 0.050 percent.

Remaining is iron (Fe) percentage and with few negligible impurities.

Mechanical Properties of SPCC Steels: Following are some of the mechanical properties of SPCC steels:

  • The tensile strength of the SPCC Steels is expressed in Newton per millimeters and it must be at-least 270 N/mm2 (MPa).
  • The elongation property of SPCC steel varies with the ranges of thickness.
  • The minimum percentage ranges for elongation is from 27 to 31 percent starting from 0.25 mm to 2.5 mm and over.
  • The weld ability of these materials is conformed.

Equivalent Material Grades in Other International Standards: Read more about the international standard for commercial quality cold rolled materials in ISO 3574 1999 CR 1 Steels in article: ISO 3574 1999 CR 1 Steel 

Equivalent grade of SPCC steel in ASTM is 1008 Carbon Cold rolled Steel Sheet.

Applications of SPCC & Commercial Cold Rolled Steels: Applications are as under

  • SPCC Steels are primarily used in automobile parts manufacturing.
  • These are also used in different applications of Construction.
  • SPCC cold rolled steels coils are also consumed in galvanized products, for example GI coils, and color plates etc.
  • These are also extensively used in making of electrical appliances, containers.
  • Pipes and drum manufacturing is also one of the common application of SPCC materials.
  • Moreover the iron armature used in tube lights chalk is also manufactured through SPCC steel.
  • Other common applications of SPCC materials are: fan blades, frying pans,wall mount kits, metal stamping kit,and ceiling mount kit etc.

Suppliers of SPCC Steel: Suppliers are also listed below:

  • Supplier Menggeer Metal Material (Tianjin) Co., Ltd bearing contact number 86-22-88451773 .The supplier address is Room 2126, No. 9, Keda 1st Road, Balitaitaida (Jinnan) Microelectronics Industrial Park, Jinnan District, Tianjin, China (Mainland).
  • Supplier Ten One Material Supply Limited bearing contact number 86 – 0755 – 81980685 .The supplier address is Floor 9, Jiangsu Building, Futian District, Shenzhne Shenzhen Guangdong 518000 China.
  • Supplier KNM Steel Canada Inc bearing contact number 1-514-6833685 .The supplier address is Pierrefonds Pierrefonds Quebec H9A-3E5 Canada.
  • Supplier Three Colors Crafts Development Co.Limited bearing contact number 852-0755-89969981 .The supplier address is Flat/Rm. A, 18/F, Kingswell Commercial Tower, 171 Lockhart Road Hong Kong Hong Kong Hong Kong(China).
  • Supplier Daewon Steel Co. Ltd. bearing contact number 82-2-3167675 .The supplier address is 1295-5, Jungwang-dong, Siheung-si Gyeonggi-do 429-849 Korea.

Learn how SPCC steels can be manufactured from SPHC steels, and how other material grades can be made from SPCC steels in Process Flow Illustration. Customers of SPCC Steels are recommended to know the Quality aspects before buying SPCC coils or sheets.

Adam Rudolf is a material engineer who has graduated from University of New South Wales, he is a bachelor in Materials engineering. He has also served as an engineer in OneSteels Arrium Mining and Materials Australia. Now a days he is offering his services to materialgrades.com in the form of technical analysis on different materials.


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26 Responses to “JIS G 3141 Commercial Cold Rolled SPCC Steels”

  1. Ranjeet

    Sep 26. 2012

    JIS designation of SPCC is JIS G 3141 but in Chemical compositon it is mentioned JIS G 3131.

    Is it same in chemical composition.

    Overall information is much better & easy to understan.
    Thank you

    Reply to this comment
  2. Adam Rudolf

    Sep 26. 2012

    Thanks for question.

    Actually JIS G 3141 is a specification for cold roll material, and JIS G 3131 is a specification for hot roll steel. The chemical composition of SPCC steel is similar to SPHC steels, thats why the chemical composition of JIS G 3131 is referred, however JIS G 3141 is also same.

    Reply to this comment
  3. Ashish

    Mar 01. 2013

    Is SPCC better than SS304? and how does it prevent rust / corrosion / oxidation… powder coating or something else??

    Thank you

    Reply to this comment
    • Andrew Michael

      Mar 06. 2013

      Ashish Thank-you for your question

      For your first question, I must say It depends on the application. SS304 is stainless steel where as SPCC is a mild steel. SS304 steel is utilized in chemical, dairy, food processing, cryogenic vessels, petrochemical, kitchenware and fertilizer industries. SS304 steel is utilized in areas where environment is highly corrosive & SS304 steel is inert in that case due to high rust resistance. SPCC steel is a commerical quality steel and is utilized in applications mentioned in above article.

      SPCC steel is prone to rust & is prevented by oiling on its surface.

      Reply to this comment
  4. jawad afzal sheikh

    Aug 20. 2013

    we are manufacturers of perforated steel sheet and use cold rolled sheet with specification SPCC-SD . can we use SPCC-1B for the same purpose .

    Reply to this comment
    • Andrew Michael

      Aug 20. 2013

      SPCC-1b is a bright finish material & it is full hard, hardness is almost greater than 85 HRB, right now you are using a material below 65 HRB. So if you for a full hard material it can affect your process parameters and the final product & the mechanical properties like Tensile strength will be higher with lower elongation. The second thing is the bright finish if you for the SPCC-SB that is mechanical properties are same but the finish is bright then if you have no coating application like chroma-ting then it is okay to go with bright finish surface.

      Reply to this comment
  5. Yaseen Raza

    Dec 02. 2013

    What are the Hall-Petch Equation constants for SPCG steels?
    If they are not derived, how can we work to obtain them

    Reply to this comment
    • Andrew Michael

      Sep 04. 2014

      Dear Yaseen Raza,

      thank-you for your question and apologies for delayed reply as I am a freelance and was employed by a company these days, now I am back again.
      Since SPCG steel is dead mild steel. Its Hell-Petch equation constant should be below 0.70
      We can obtain the value this of constant by using Hell-Petch equation, stress strain diagram for SPCG material and calculating the average grain diameter with the help of ASTM grain size chart. Once we get yield stress, starting stress from the stress strain diagram, and the value of average grain diameter from ASTM grain size chart, we can put these variables in Hell-Petch equation to calculate Hell-Petch equation constant.

      Reply to this comment
  6. Fabian

    Sep 26. 2014

    What is the difference between SPCC and MR steel?

    Reply to this comment
  7. Name (required)

    Sep 26. 2014

    spcc material is stainless steel or mild steel pls needful

    Reply to this comment
  8. Thai Hong

    Oct 04. 2014

    Can you tell me what’s the hardness of SPCC-SD steel?

    Reply to this comment
  9. Bela H.

    Nov 16. 2014

    Hello, could you help me please?
    I would like to ask that what is the difference between JSC270C and Jsc270CC. Where can I find any information about it?

    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      We have forwarded this request to our R & D publishing department. They will see whether they can publish articles for these grades or not. Basically these are commercial quality cold rolled steels with low carbon content.

      Reply to this comment
  10. rAJ

    Jan 09. 2015


    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      This is a Japanese term, you won’t find correct full meaning of abbreviation in English, but all that is available on internet is not true. One of the incorrect example of full meanings provided by some internet buddies are Standard Processed Commercial Cold Rolled Steels.

      Reply to this comment
  11. Yogen

    Feb 16. 2015

    What is the difference between SPCC-SD & SPCC 2T
    Can i use the SPCC-SD in place of SPCC-2T

    Reply to this comment
  12. Yee

    May 05. 2015

    Hi, which cold roll material best for structural use in coated sheet (GI)? SPCC-1B or SPCC-SD?

    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      First of all SPCC-SD is not used for coating. Secondly SPCC-1B is used for this purpose. SGC570 grade galvanized steel is the best in structural quality

      Reply to this comment
  13. ravi

    Jul 20. 2015

    Whats the difference between normal Mild steel and SPCC? Can normal MS can be used in place of SPCC in application of tongued washer in couplings?

    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      SPCC is dead mile steel, it means it has lower carbon content that normal Mild steel. So if your application has a lower strength requirement you can use it but not in application when you need higher strength.

      Reply to this comment
  14. mathavan

    Jul 27. 2015

    Im looking for SPCC- SD cold rolled supplier with Sirim Certificate..Anyone can help me ?

    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      I think you have to see some supplier/manufacturer in Malaysia, there are many manufacturers in Malaysia and they will be surely operating under SIRIM so you can have SIRIM certificate as well while purchasing from their.

      Reply to this comment
  15. Khilji

    Aug 08. 2015

    Dear if you please clarify that in any grade of cold rolled steel sheet which chemical and mechanical compositions or specs are the best for nickel or chrome coating after drawing the sheet to give it a shape of any auto part..Please do assist

    Reply to this comment
    • Andrew Michael

      Aug 31. 2015

      For drawing you better use a drawing quality product like SPCD, SPCE, SPCF and SPCG steels. Now if you need deep draw you can use SPCF and SPCG steels. But if you are in need of normal drawing process you can use SPCD and SPCE steels. As far as coating is concerned there should be any problem while coating any of these steels.

      Reply to this comment

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