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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Alters the specification content s which are included in International Standard. Carbon and low alloy steels. Inspection observed by the purchaser is deleted in JIS. Sampling position and direction of tensile test and bend test pieces The test piece shall be taken parallel to the rolling direction and the centre of the test piece shall be at a quarter-width from a side edge. Chemical composition of JIS G 7. Hot Rolling of Wide St In addition, the drawability of SPHE may be agreed between the purchaser and supplier.

The elongation property of SPHC steel varies with the ranges of thickness. For the steel sheet and strip under 40 mm in width, measurement shall be made at the mid-width thereof.

When the mass of one test lot exceeds 50 t, however, two sets of test pieces shall be taken from the lot. The chemical composition shall conform to the requirements specified in clause 4.

In case of dispute, however only the result obtained on a proportional test piece will be valid for material 3 mm and over on thickness.

The shape, dimensions and mass shall conform to the requirements specified in clause 6. In the case, the report shall be in accordance with the requirements of clause 13 in JIS G313 The value specified in Table 4 shall not be applied to the irregular portions of both ends of the steel coil.


Consequently JIS G The appearance is specified. A lot consists of all sheet of the same designation rolled to the same thickness and condition. NOTE 1 The steel sheet and strip may be de scaled by pickling or kis blasting after the hot-rolling operation on request by the purchaser. Adds the specification item s or content s which are not included in International Standard.


Hot Rolled Steel – JIS G Commercial Hot Rolled SPHC Steels

Terms are defined in JIS G 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. JIS G is a Japanese material standard for hot rolled steel. Mechanical properties The steel sheet and coil shall be tested in accordance with 7. Mechanical properties of JIS G X If necessary, the treatment of g331 portions of steel strip may be agreed between the manufacturer and the purchaser.

These are also extensively used in some of the automotive manufacturing, electric products, vehicles, aviation.

Hot Rolled Steel (HR) – (SPHC、SPHD、SPHE):JIS G3131

The minimum percentage ranges for elongation is from 27 to 31 percent starting from 1. JSA All rights reserved.

The appearance shall conform to the requirements specified in clause 8. A part of them is presented as given in Informative reference Table 1, accordingly.


It is commonly produced in the range of thickness 1. As for the squareness of cut-edge steel sheet, the following method using the diagonal line may be applied. Scope The Japanese Industrial Standard specifies the hot-rolled mild steel plates, sheets jjs strip hereafter referred to as “steel sheet and coil” intended for general fabrication purposes and drawing. In JIS, items related to quality are specified.

A list of jiss with explanations is given in Annex JA. Tensile strength and elongation are specified. Mechanical properties At the time that the steel is made available for shipment, the mechanical properties shall be as given jjs Annex Table 2, when they are determined on test pieces obtained in accordance with the requirements of 6.

In the case of bend test, it shall bent without crack on the outside of the bent portion.

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I want know Raw material price per Kg below mention details 1. Hot-rolled sheet 3 mm and over is thickness in commonly known as either “sheet” or “plate”.

JIS C Test m The following may be applied as the upper limit of tensile strength as agreed between the purchaser and the manufacturer.

Mechanical property tests 6. JIS C Non-or When it is infeasible to alloy the center of the test piece to be at a quarter-width from a side edge, however, the sampling should be performed as close to the aforementioned position as possible.

The test method shall be as specified in 9. For the steel sheet or plate up to and g31311 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 table is applied. Judgement of the reinspection is specified. Identical Identical 11 Marking Marking of five items is specified.

The values specified in h3131 4 shall not be applied to the irregular portions of both ends of the steel strip. Tensile test method is specified. In JIS, the number of the standard can be replaced by the symbol of grade.

With this respects, the sampling method of specimen shall conform to Class A, and the number of test pieces and the sampling position shall be as following: When g31311 material grade is specified as hot rolled steel, it means it has been subjected to a manipulative process of hot rolling ijs which a metal bar is passed through high tension rollers above the re-crystallization temperature of the input metallic material.

The corresponding International Standard of this Standard is given in the following: SPHC Steels are primarily used in pipe and tube manufacturing.