Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of low-alloyed steels for machine structural in China. Please feel free to wholesale customized low-alloyed steels for machine structural at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
々 Manufacturing method
⒈Steel shall be manufactured from the killed stee.
⒉Steel shall be rolled or forged as the forming ratio of 4S or over unless especially soecified.However,blooms for forging or rolling of the forming ratio of under 4S shall be beforehand agreed upon between the purchaser and the supplier.
⒊Steel shall be as rolled or forged unless expecially specified.
々 Analytical test shall be as follows:
⒈General items of the analytical tests and sampling method of the ladle analysis sample shall be as 7.6 and clause 8 in JIS G 0404.
⒉The sampling method of the product analysis sample shall be as clause 4 in JIS G 0321.
⒊The analytical method shall be in accordance with any one of the following standards: JIS G 1211,JIS G 1212,JIS G 1213,JIS G 1214, JIS G 1215, JIS G 1216, JIS G 1217, JIS G 1218, JIS G 1219, JIS G 1238, JIS G 1253,JIS G 1256, JIS G 1257,JIS G 1258.
々Inspection
Inspection shall be as follows:
⒈The general items for inspection shall be as the specification of JIS G 0404.
⒉The chemical composition shall conform to the requirements specified in clause 4.
⒊The appearance and shape,diamension and tolerances thereof shall conform to the requirements specified in clause 5.
Other insoections
⒈ In addition to the inspection specified in 8.1,the following tests may be specified upon the agreement between the purchaser and the supplier(In this case,the purchaser shall have prior agreement with the manufacturer upon inspection items,method of sampling,test method and the crieria of acceptance of rejection):
⒉ Magnetic particle inspction,ultrasonic inspection,decarburization inspection,non-metallic inclusion inspection,grain size inspection,mechanical properties inspection hardenability inspection,macrostructure inspection,macro-streak flaw inspection and microscopic structure insection.
⒊ The test methods shall be in accordance with the following standards respectively: JIS G 0565,JIS G 0901,JIS Z 2344, JIS G 0558,JIS G 0555, JIS G 0551,JIS Z 2201, JIS Z 2241,JIS Z 2202,JIS Z 2242,JIS Z 2243,JIS Z 2245,JIS G 0561,JIS G 0553,JIS G 0556.
Hot Tags: Low-alloyed Steels For Machine Structural, China Low-alloyed Steels For Machine Structural manufacturers, suppliers, corrosion resistant carbon steel pipe, heat exchanger carbon steel pipe, high strength carbon steel pipe, high temperature carbon steel pipe, low temperature carbon steel pipe, Carbon Steel Pipe for Pipeline Construction
