WELDING HANDBOOK - lb52u.su

1 Use the bookmark or click icons below for details. Overall Index Lists of WELDING Consumables 10. For Mild Steel and 490 MPa High Tensile Strength Steel 22. For Weather Proof Steel 82. For 590-780 MPa High Tensile Strength Steel and Low Temperature Steel 96. For Heat-Resistant Low-Alloy Steel 146. For Stainless Steel 200. For Hardfacing 258. For Cast Iron 280. For Nickel-Based Alloy 286. Highly Efficient WELDING Processes 306. Appendix 320. For your further information of WELDING consumable specifications, classifications, approvals and packages, please contact the nearest Kobelco office or sales representative.

2 Notification The purpose of changing the designation system We, WELDING Company of Kobe Steel, Ltd., thank you very much for your continuous patronage of our In recent years, we have found some other companies' products that have the same brand names as products and services. We have changed the designation system of WELDING consumable as described in ours and false certificates that misrepresent our company's certificates in Japan and the Asian countries. the following from April 2008. However, the technical design of the products is not changed. In order to cope with this problem, we have taken legal actions against the impostors that could be verified and have required them to change their product names.

3 However, it is difficult in the traditional product designation system to protect all of our products from imitation. Hence, we have established the New group brand names and the corresponding products new designation system of WELDING consumable to ensure the trademark right in main countries and to make our products identifiable more clearly, in which the particular group brand name, Trademark, is put on the head of an individual Trade Designation.. All KOBELCO WELDING consumables are designated with Trade Designation and are grouped into the following three new groups on the basis of the characteristics of individual products as detailed below.

4 The new designation system is not only to prevent counterfeit products in Japan and overseas countries, but also to prevent our customers and users from suffering such a trouble in terms our products. (1) (Famili-Arc) This modification may cause customers and users to modify their relevant documents. We sincerely hope for your understanding of the abovementioned situation and for your cooperation with us. A coined word produced by combining Familiar and Arc.. WELDING consumables grouped into this group are used for general welded structures made of mild steels and high tensile strength steels that have the tensile strength of less than 590 MPa.

5 (2) (Trust-Arc) Concluded. A coined word produced by combining Trust and Arc.. WELDING consumables grouped into this group are used for such steels that require highly credible qualities as high tensile strength steels with the tensile strength of 570 MPa and higher, low temperature steels, and heat-resistant low-alloy steels. (3) (Premi-Arc). A coined word produced by combining Premium and Arc.. WELDING consumables grouped into this group are used for high-alloy steels, stainless steels, and nonferrous metals. The new group brand name (referred to as Trademark hereinafter) is put on the head of an individual trade designation.

6 The trade designations are made by modifying the traditional brand names in accordance with the new designation system in which the position of hyphen is reviewed so that a hyphen comes after one letter or two letters. That is, the new brand name consists of Trademark and Trade designation as shown in the following. We are determined to control all the trade designations so that they can clearly be identified. Examples of new and old brand names Old brand name New brand name (1) B-10 B-10. (2) MG-50 MG-50. (3) TGS-50 TG-S50. (4) MGS-50 MG-S50. (5) ZERODE-44 Z-44. (6) CMA-106N CM-A106N. (7) DW-308 DW-308.

7 2 3. Foreword Abbreviations and marks with definitions Note the following preliminary information on use of this WELDING HANDBOOK . This WELDING HANDBOOK uses the following abbreviations and marks if necessary. 1. Standards for WELDING consumables are abbreviated as follows Abbrev. Definition Abbrev. Definition and mark and mark JIS: Japanese Industrial Standard AC Alternating current or Air cooling NL Number of layer AWS: American WELDING Society's Standard A Ampere NR Not required EN: European Norm AP All positions OD Outer diameter ASME: American Society of Mechanical Engineers' Standard AW As-welded OQ Oil quenching Bal Balance OS Offset strength 2.

8 Classifications for WELDING consumables are used in accordance with the following rules CR Cooling rate OSW One-side WELDING DBE Distance between electrodes Pol Polarity WELDING consumables are classified in accordance with basically the mechanical and/or DC Direct current Pre. H Preheat chemical requirements of the standards, excluding such requirements as size, length, marking and DC-EN DC, electrode negative PT Plate thickness identification manners. For details please contact the nearest Kobelco office or sales DC-EP DC, electrode positive PWHT Postweld heat treatment representative.

9 Dia. Diameter RA Reduction of area EGW Electrogas arc WELDING RC Redrying conditions 3. The test conditions of mechanical properties and hardness are as follows El Elongation RG Root gap Ext Extension of wire RT Room temperature (1) Unless otherwise specified, impact values are obtained with Charpy 2mm-V notch specimens. F Flat position SAW Submerged arc WELDING (2) Unless otherwise specified, tension test and hardness test are carried out at room temperature. FC Furnace cooling SG Shielding gas (3) Unless otherwise specified, tension test and hardness test are carried out in the as-welded FCW Flux-cored wire SMAW Shielded metal arc WELDING condition.

10 FCAW Flux Cored Arc WELDING SR Stress relief (4) The gauge length of tensile specimens is 4 x D (where D is the diameter) for testing at room GD Groove design SW Solid wire temperature. GMAW Gas Metal Arc WELDING (T) Trailing electrode (5) Unless otherwise specified, postweld heat treatment is followed by furnace cooling. GS Groove size TIG Tungsten inert gas (6) Unless otherwise specified, the testing method is as per AWS standard. GTAW Gas Tungsten Arc WELDING TS Tensile strength (7) All mechanical and chemical data are given separately as Example (one of the manufacturer's H Horizontal position Temp Test temperature laboratory test data) and Guaranty (the guaranty value as per AWS standard).