JIS G3131 PDF

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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The minimum percentage ranges for elongation is from 27 to 31 percent starting from 1.

The appearance is specified. 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.

JIS G 热轧低碳钢板、薄板和钢带 英文版_图文_百度文库

Mechanical property tests 6. The appearance shall conform to the requirements specified in clause 8. Chemical composition of Deletion four elements C, Mn, P, S and additional alloy elements are specified. JIS has changed “for drawing” to “for processing”.

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Small cracks on the edges of test piece, and cracks not visible to the naked eye shall be disregarded. The order number is a matter of contract and is deleted. In the case, the report shall be in accordance with the requirements of clause 13 in Jsi G SPHC steel is a commercial quality hot rolled steel.

The values specified in table 4 shall not be applied to the irregular portions of both ends of the jjs strip.

What is the maximum temperature it can handle? Inspection observed by the purchaser is deleted in JIS. Chemical composition of four elements C, Mn, P, S are specified. The thickness shall be measured at any point on the steel sheet and coil not less than 20 mm from a side edge. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any y3131, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

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Inspection observed by the purchaser is specified. Grade and symbol The steel and coil shall be classified into 3 categories, and their symbols shall be as given in Table 1. The following may be applied as the upper limit of tensile strength as agreed between the purchaser and the manufacturer.

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. 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. The mechanical properties shall conform to the requirements specified in clause 5.

The steel sheets which are not bundled shall be marked for each sheet. Transverse test piece shall be taken midway between the center and edge of the sheet as rolled.

Hot Rolled Steel – JIS G Commercial Hot Rolled SPHC Steels

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 JIS C Non-or A lot consist of 50 t or less of sheet of g313 same designation rolled to the same thickness and condition.

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The steel sheets which are not bundled shall be marked for each sheet. The repair by welding shall not be performed.

V Justification for the technical deviation and future measures Content The report is specified. In the case of bend test, it shall bent without crack on the outside of the bent portion. When it is infeasible to allow the centre of the test piece to be at a quarter-width from a side edge, the sampling should be performed as close to the aforementioned position as possible.

The tolerance on thickness of the steel sheet which is not manufactured from the steel strip may be agreed between the purchaser and the manufacturer. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties.

JIS G 3131-Commercial Hot Rolled SPHC Steels

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. 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. Hot Rolling of Wide St Consequently JIS G