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Steel jsi and strips de scaled by acid pickling or shot-blasting shall be oiled. Since the hardness of the standard temper grade and as- annealed grade and the tensile strength of hard mate- rials can be used by commer- cial custom, they are added in JIS.
Note 4 The ovality means the difference between the maximum and the minimum wire diameters measured in the same cross-section.
No parl of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, vvithout pennission in wriling from the publisher. For those of diameter 3 mm or less, the reduction of area is not specified. Materials handling equipment In the case where the width is less than 30 mm, however, the measurement shall be made at a mid-width position.
The camber values specified shall not apply to the irregular parts of steel coils. The test method shall be as specified in 9.
Wire rods Part 2: For the tensile test, t No. Carbon steels for cold heading — Part 2: Reference table 1 Equation to calculate the minimum thickness of the specimen Indenter Rockwell hardness Rockwell superficial hardness Spherical indenter 15hor0m lH 15Aor0.
Over 4 to and inc!. With this respect, the sampling method of specimen shall conform to Class A of 7.
JIS G 0404-1999 (Outdated-currently 2005)
Procedures of the investigation. Chemical composition of four elements C, Mn, P, S are specified. The values specified in table 4 shall not be applied to the irregular portions of both ends of the steel strip. Mass of single bundle kg Mass of single sheet kg X number of sheets per bundle of same size Rounded off to integer in kg.
NOTE 1 The steel sheet and strip may be de scaled by pickling or shot blasting after the hot-rolling operation on request by the purchaser. Fluid systems and components for general use The specification in ta- ble 4 shall be applied to steel sheet and coil of as-anneal or standard temper only.
The theoretical mass shall generally be applied for the steel sheet mm or more in width during cold rolling, and the actual mass shall be applied for the steel sheet under mm in width during cold rolling. The chemical composition shall conform to the requirements specified in clause 4. The portions with continuous sidelines or dotted underlines are the matters in which the content of the corresponding International Standard has been modified.
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 seamless boiler tube,JIS G Tubes for Boiler and Heat Exchanger|World Iron & Steel
Table 19 is applied to those by ordinary cutting method and table 20 is applied to those re”cut or precision cut. JIS G consists of the following 2 parts under the general title” Carbon steels for cold heading”: Inspection observed by the purchaser is deleted in JIS. It is required to specify the inside diameter, the maximum outside diameter and the maximum mass of the coil. Provisions on defects other than holes and lamination, however, shall generally be applied to one side of the surface 4 of the steel sheet and coil.
In ISO, bendability and hard- ness were deleted at the revi- sion, and there is no provision for plastic strain ratio deter- mination.
Remarks 1 JIS Z specifies that “The thickness of the specimen shall be such that the deformation of the test is not observed on the opposite side of the specimen.
I Hardness of the standard temper grade and as-annealed grade Hardness of the standard temper grade and as-annealed grade shall be in accordance with either An- nex 1 table 1 or Annex 1 table 2. Wires Introduction This Japanese Industrial Standard g044 been prepared based on the second edition of ISO Steels for cold heading a11d cold extruding published in with some modifications of the technical contents.
In JIS, provisions for hardness test, bend test and plastic strain ratio deter- mination are added. Adds the specification item s or content s which are not included in International Standard.