JIS G Hot-rolled mild steel plates, sheet and strip. SPHC max. max. max. max. min. 27min. 29min. 29min. 29min. 31min. 31min. Drawing. SPHD max. max. max. max. Code of type. Applicable thickness (mm). Applications. JIS G Hot-rolled soft steel sheet/strip. SPHC. or more, but no more than General use. SPHD.

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Marking of seven items is specified. The steel sheets which are not bundled shall be marked for each sheet. The thickness shall be measured at any point on the steel sheet and coil not less than 20 mm from a side edge. Alters jiss specification content s which are included in International Jos.

Errata will be provided upon request, please contact: Adds the specification item s or content s which are not included in International Standard.

The following may be applied as his upper limit of tensile strength as agreed between the purchaser and the manufacturer. Judgement of the reinspection is specified.

Chemical composition of four elements C, Mn, P, S are specified. Please read article completely.

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. Leave a Reply Cancel reply. Chemical composition of JIS G 7. The appearance is specified.

The appearance shall conform to the requirements specified in clause 8. The mechanical properties shall conform to the requirements specified in clause 5. SPHC Steels are primarily used in pipe and tube manufacturing.

The steel sheets which are not bundled shall be marked for each sheet. What is the maximum temperature it can handle? Sam pIing frequency of the tensile test piece is specified. Prolonged storage of the sheet can cause a change in the mechanical properties increase in hardness and a decrease in elongationleading to a decrease in drawability.


Marking The steel sheet and coil having passed the 3g131 shall be marked with the following details for each bundle by suitable means. The most recent editions of the standards including amendments indicated below shall be applied. It is not suitable for applications where surface is of prime importance.

For the steel sheet or plate up g31131 and excluding 4 mm in thickness, the reliability of the conversion will become worse, so that agreement reliability of the conversion will become worse, so that agreement between the purchaser and supplier is necessary when this mis is gg3131. A lot consist of 50 t or less of sheet of the same designation rolled to the same thickness and condition.

Mechanical properties The steel sheet and coil shall be tested in accordance with 7. It is required to specify the inside diameter, the maximum outside diameter and the maximum mass of the coil. A part of them is presented as given in Informative reference Table 1, accordingly.

Small cracks on the edges of test piece, and cracks not visible to the naked eye shall be disregarded. Chemical composition of Deletion four elements C, Mn, P, S and additional alloy elements are specified.

JIS G 3131-Commercial Hot Rolled SPHC Steels

Carbon and low alloy steels. However, the tolerances on thickness shall be in accordance with table 4 and the measurement of edge camber shall be carried out when requested by the purchaser. Hot-rolled mild plates, sheets and strips intended for general fabricating purposes and drawing are specified. The chemical composition shall conform to the requirements specified in clause 4. It is from 1. The standards cited in this Standard are given in Attached Table 1.


JIS G 热轧低碳钢板、薄板和钢带 英文版_图文_百度文库

These are also extensively used in some of the automotive manufacturing, electric products, vehicles, aviation. The steel sheet and coil from which the scale js been removed after the hot-rolling operation by picking or grit blasting may be shipped on request by the purchaser. I want know Raw material price per Kg below mention details 1. A lot consists of all sheet of the same designation rolled to the same thickness and condition. Norma ti ve references The following standards contain provisions which, through reference in this text, constitute provisions of this Standard.

In the case of bend test, it shall bent without crack on the outside of the bent portion. JIS C Non-or Therefore we cannot say that yield and UTS are close, when steel is not absolutely brittle.

Hot Rolled Steel – JIS G Commercial Hot Rolled SPHC Steels

SPHC steel is h3131 commercial quality hot rolled steel. With this respect, tolerances on length for the steel sheet and those on width for the cut-edge steel sheet shall, unless otherwise specified, be in accordance with the tolerance A of JIS G Steel sheets and strips de scaled by acid pickling or shot-blasting jix be oiled.

In JIS there is no description of the inside diameter and the maximum outside diameter of the coil.