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JIS G 3131-Commercial Hot Rolled SPHC Steels

What is SPHC Steels?

SPHC steel is a commercial quality hot rolled steel. SPHC is a material grade and designation defined in JIS G 3131 standard. JIS G 3131 is a Japanese material standard for hot rolled steel. The commercial quality hot rolled steel is a type of steel that can be used commercially for forming purposes that can also include sharing of a metallic sheet.  SM570 Steel is also hot roll steel but it is specifically used for welded structures because of high material strength.

What is JIS G3131?

JIS G3131 is a Japanese standard for hot roll steel. This Standard specifies the technical requirements of the hot-rolled mild steel plates, sheets, and strips.

SPHC Full Form

Sources say SPHC steel full form is Steel Pickle Hot-rolled Coil. But it is a Japanese material and this full form is not valid since SPHC can be a plate or a strip instead of a coil.

Hot Rolling Process

When a material grade is specified as hot rolled steel, it means it has been subjected to a manipulative process of hot rolling in which a metal bar is passed through high tension rollers above the re-crystallization temperature of the input metallic material. The roller does not only decrease the thickness of the sheets but also changes the grain structure of the steels.

Dimensional Specs of SPHC Steels

  • The applicable thickness for this SPHC material as defined in the JIS 3131 starts from 1.2 mm to 14 mm.
  • However, the width of SPHC material ranges to 2000 mm.

The Chemical Composition of SPHC Steels

JIS G 3131 defines the chemical composition of SPHC 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 SPHC Steels

  • The tensile strength of the SPHC Steels is expressed in Newton per millimeters and it must be at least 270 N/mm2 (MPa).
  • The elongation property of SPHC steel varies with the ranges of thickness.  The minimum percentage ranges for elongation is from 27 to 31 percent starting from 1.2 mm to 4 mm and over.

Equivalent Material Grades in Other International Standards 

The American Standard for Hot-Rolled Materials A 1011/A 1011M-07 CS type A-D Steels

The International Standard for Hot-Rolled Materials ISO 3573 2008 HR 1 Steel 

Applications of SPHC & Commercial Hot Rolled Steels

SPHC Steels are primarily used in pipe and tube manufacturing. These are also used in various applications of Construction including Ship Plate, Wear Resistant Steel and Container Plate,

SPHC hot rolled steels coils are also consumed in many cold-rolled and galvanized product, for example, CR sheets, GI coils, and color plates etc.

These are also extensively used in some of the automotive manufacturing, electric products, vehicles, aviation. Precision, meters, food cans, welding pipe making, C- channel, steel rims, storage rack, motorcycle parts, steel furniture, water heater & coolers, etc.

Feasible Manufacturing Operations

Bending, shaping, lancing and piercing etc all are common operations that can be done on these steels.

Brownish Red Discoloration – rust

This material needs pickling before use since it discolors to brownish red and develops a thin layer o rust on it. Therefore it is recommended to perform a pickling process before consuming this type.

Babies or Product Grades of SPHC Steel

JIS G 3141 Commercial Cold Rolled SPCC Steels

JIS G3141 Drawing Quality Cold Rolled SPCD Steels

ISO 3574 1999 Commercial Cold Rolled CR 1 Steel

JIS G3141 Extra Deep Drawing Quality Cold Rolled SPCG Steel

JIS G3141 Deep Drawing Quality Cold Rolled SPCE Steel

Learn how different material grades can be prepared from SPHC steels in Process Illustration.



Do you want to buy SPHC steel?

We can help you with buying hot roll steel. You can send your inquiry by using our GDPR Compliant Order Inquiry Form.


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We can help you find customers looking for hot roll steel, you can provide us your quotations by using our GDPR compliant Online Quotation Form.

Suppliers of SPHC Steels

Suppliers Contact Address
Tianjin Jianghailong Steel Co., Ltd. 0086-22-24966667 No.51, Building B, Binhai Steel Market, Dongli District, Tianjin City, China.
Henan Xin Gui Xiang Steel Co., Ltd. 86-372-0372-3172006
Nobleagle Trade & Investment Ltd +86-21-5109 7292 Room 1108, Unit B, Wanda Square, No.36, Guobin Road, Yangpu District, Shanghai,China
Shanghai Vova International Trade Co., Ltd. 86-21-66591271 Room 1809, D Area, Anderson Plaza, No. 1211 Mudanjiang Road, baoshan District, shanghai, China
Note: Mechanical and chemical properties given in values are indicative and for information purpose only. Some of the given information can be outdated. There are also minor possibilities for inaccuracies in the text due to human error. For inaccuracies & outdated text you can Complaint Us.


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. Muhammad Iqbal says:

    i want to know about thickness specification of jis g 3131.

    1. Adam says:

      It is from 1.2 mm to 14 mm. Please read article completely.

      1. Quiana says:

        Good to find an expert who knows what he’s tailkng about!

  2. SREEKUMAR says:

    Could you please tell me what is the equal ASTM Std. against JIS G 3131 ?

    1. Andrew says:

      Please refer following information:
      Equivalent Standard: ASTM A1011 / A1011M – 17a
      Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength


    we are interest for steel items gi HR ppgi ppgl

  4. Muhammad says:

    could you please advise the tolerance on dimensions

    1. Arun Kumar says:

      Please confirm tolerance on length

  5. didik says:

    may I ask what is the elastic modulus of SPHC jis g3131 ????

  6. juhari alwi says:

    Hi, I have been looking around for the yield strength value for SPHC steel, without any success. even in the JIS G 3131 document never state any. One stupid assumption that i’m having right now is that the yield point is ‘almost’ close to the UTS, in other word this material considered brittle which is weird nature for steel material. Care to your share your opinion? Thanks!

    1. Andrew says:

      Actually when there is elongation factor in the steel as in the case of SPHC steel, there is a difference in yield and tensile strength. Therefore we cannot say that yield and UTS are close, when steel is not absolutely brittle.

      1. Ganesh says:

        So anyone got yield strength of SPHC steel? Please reply if anyone knows..

        1. CJ says:

          Hello, you got its answer? I’m also looking for it now

        2. ali says:

          Hi. so, i also searching for any information about yield strength of SPHC. nowadays, did you get the answer? thanks

  7. Roshen T says:

    Hi there, could you advise on the silicon content percentage of 3131? Cheers!

  8. Amrita says:

    Could you please teel the jSH270CN-P is equivalent to which indian grade

  9. Gem Larican says:

    HI! I am looking for the equivalent specification of JIS G3131 SPHC versus ASTM Specification? Thanks!
    Kind regards,

    1. Shahul says:

      HI! I am looking for the equivalent specification of JIS G3131 SPHC versus ASTM Specification?

      And one more question G3131 equivalent S275 jr pls confirm this


  10. Vadivelu says:

    I want know Raw material price per Kg below mention details
    1.SPHC P grade Raw material 4mm thickness and 20Dia,25Dia
    2.SS41 P grade

  11. Adrianus dalame says:

    Pleases mild certificate about krakatau steel jis G 3131 SPHC

  12. Yogesh Trivedi says:

    Hi..what is the difference between JIS G 3131 SPHC and JIS G 3132 SPHT.

  13. ANKIT GUJJAR says:


  14. william says:

    What is the maximum temperature it can handle?

  15. AFAQUE says:


  16. SHEEBI BANO says:

    what is the yield strenght of SPHC

  17. Mohamed Abdelaal says:


  18. Kshitiz says:

    Which material can be used according to SPHC Steel in India?
    As there are no suppliers we can find out in our country.

  19. Emanuele says:

    Need a supplier for SPHC with 3,2mm thickness

  20. NIDHIN says:

    could you please tell me JIS G3131 is equivalant material for ASTM A 36 ??

  21. Thiyagarajan Devaraj says:

    JIS G 3131-Commercial Hot Rolled SPHC Steels is weldable? if yes than please advise the type and grade of electrode.

  22. Abdul says:

    Which type of anti rust is best suited for SPHC?

  23. dharma says:

    hi, does SPHC equivalent with AISI 1010 or 1020?

  24. Stephen Engler says:

    I have a part made of JIS G3131 SPHC steel. It’s thickness is only specified as .241 MIN. Anyone have an idea of what size, with tolerance, that his might be?

  25. Stephen Engler says:

    I have a part that’s made from JIS G3131 SPHC steel. It’s thickness is called out as .241 MIN.
    Does anyone have an idea what size this might be and its tolerance?

  26. Nasir khursheed says:

    Hardness of 3.2mn SPHC _ 270C in HRB

  27. ahamed says:

    What is the tolerance for the standard JIS 3131, SPHC – HR Coils

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