SPECIFICATIONS - DEL METALS

1|P a g eSPECIFICATIONSTo assist our customers we have compiled the following data sheets which provide technicalinformation frequently required by designers and are combined into three groups:a) ) ) and other suggested cold forming radii for the various grades of steel should, in our opinion, beattainable when using normal press brake practices. Greater care in the preparation of materials andbending practice could result in smaller radii being obtained. More generous radii may be required forrolling establishment of specific welding techniques depends upon many factors such as temperature ofthe work piece and/or atmosphere, the welding process employed, the thickness and chemistry ofthe materials being joined, joint restraint etc. As a result only generalized welding information can beoffered. In general, an electrode is employed whose strength is equal to that of the materials beingjoined. Suggested preheat and interpass temperatures are tabulated on the following steels-page steels-page 143 These are appreciably in agreement with those stipulated by both the and the covering welded structures and should be adequate to avoid weld cracking.

HOT FORMING - is recommended for all thicknesses not showing a value. Since temperature can be a major Since temperature can be a major cause of bend failure, in no case should bending be carried out at a metal temperature below 15°C.

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