Arc Welding of Specific Steels and Cast Irons

More documents

Recommendations

Info

Arc Welding of High-Strength Steel 1-28
Arc Welding of High-Strength Steel Table 3.11 — A guide for selection of gas metal arc welding wires for high-strength steels Type of steel Trade Typical desig. (1) JIS classification (2) AWS classification (2) shielding gas Welding position (3) MG-50 Z3312 YGW11 A5.18 ER70S-G CO 2 F, H, HF MG-51T Z3312 YGW12 A5.18 ER70S-6 CO 2 All positions HT50 MG-S50 Z3312 G49AP3M 16 A5.18 ER70S-G 80%Ar+20%CO 2 All positions DW-100 Z3313 T49J0T1-1CA-U A5.20 E71T-1C CO 2 All positions MX-100 Z3313 T49J0T15-0CA-U A5.20 E70T-1C CO 2 F, H, HF HT60 MG-60 Z3312 G59JA1UC 3M1T A5.28 ER80S-G CO 2 All positions DW-55L Z3313 T556T1-1CA-N3 A5.29 E81T1-K2C CO 2 All positions HT70 MG-S70 Z3312 G69A2UM N4CM21T A5.28 ER100S-G 80%Ar+20%CO 2 All positions HT80 MG-S80 Z3312 G78A4M N5CM3T A5.28 ER110S-G 80%Ar+20%CO 2 All positions Note (1) Trade designations of wires produced by Kobe Steel (2) As per JIS Z3312:2009, Z3313:2009, AWS A5.18:2005, A5.20:2005, A5.28:2005 and A5.29:2005 (3) F: flat, H: horizontal, HF: horizontal fillet 3.4 Gas tungsten arc welding Gas tungsten arc welding is for thin pipes and the root pass of medium and thick pipes in general. It is also used for fabricating penstocks and pressure vessels by using automatic welding processes that provide larger deposition rates. 3.4.1 Types and features of welding wires Table 3.10 also includes solid wires for gas tungsten arc welding of 50kgf/mm 2 -class high-strength steel. As to other solid wires for gas tungsten arc welding of high-strength steel having higher tensile strength, refer to AWS A5 .28 (Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding). 3.4.2 Selection of welding wires The selection of a proper wire depends on the requirements of tensile strength and chemical composition of the weld metal. The chemical composition of the weld metal is almost the same as that of the wire because an inert gas such as Ar is commonly used for shielding, and the weld metal dilution caused by the admixture of the base metal is low. 3.4.3 Tips for better welding results The proper gas shielding flow rate is usually l0-15 l/min, although it depends on the welding current and the type of welding joint in gas tungsten arc welding. Wind can easily influence the soundness of a weld in gas tungsten arc welding; therefore, the arc area should be screened to keep the gas shielding stable where wind velocity is 1m/sec or higher. In addition, the fusion surface of the welding joint must be clean without rust, oil, grease, paint, and other dirt. 1-29
Page 1 and 2: FOURTH EDITION Arc Welding of Speci
Page 3 and 4: Published by KOBE STEEL, LTD. © 20
Page 5 and 6: Chapter 1 Arc Welding of High Stren
Page 7 and 8: Arc Welding of High-Strength Steel
Page 31: Arc Welding of High-Strength Steel
Page 35 and 36: Arc Welding of Heat-Resistant Low-A
Page 69 and 70: Arc Welding of Stainless Steel 1. T
Page 71 and 72: Arc Welding of Stainless Steel 2. M
Page 73 and 74: Arc Welding of Stainless Steel Prim
Page 75 and 76: Arc Welding of Stainless Steel Fig.
Page 77 and 78: Arc Welding of Stainless Steel 2.3
Page 79 and 80: Arc Welding of Stainless Steel Temp
Page 81 and 82: Arc Welding of Stainless Steel (2)
Page 83 and 84:
Arc Welding of Stainless Steel Prop
Page 85 and 86:
Arc Welding of Stainless Steel Tens
Page 87 and 88:
Arc Welding of Stainless Steel Abso
Page 89 and 90:
Arc Welding of Stainless Steel 3. M
Page 91 and 92:
Arc Welding of Stainless Steel Phot
Page 93 and 94:
Arc Welding of Stainless Steel In a
Page 95 and 96:
Arc Welding of Stainless Steel Fig.
Page 97 and 98:
Arc Welding of Stainless Steel 4. C
Page 99 and 100:
Arc Welding of Stainless Steel Fe (
Page 101 and 102:
Arc Welding of Stainless Steel show
Page 103 and 104:
Arc Welding of Stainless Steel Maxi
Page 105 and 106:
Arc Welding of Stainless Steel 4.3
Page 107 and 108:
Arc Welding of Stainless Steel When
Page 109 and 110:
Arc Welding of Stainless Steel Tabl
Page 111 and 112:
Arc Welding of Stainless Steel 5. M
Page 113 and 114:
Arc Welding of Stainless Steel Impa
Page 115 and 116:
Arc Welding of Stainless Steel Seco
Page 117 and 118:
Arc Welding of Stainless Steel Corr
Page 119 and 120:
Arc Welding of Stainless Steel The
Page 121 and 122:
Arc Welding of Stainless Steel 5.3
Page 123 and 124:
Arc Welding of Stainless Steel Amon
Page 125 and 126:
Arc Welding of Cast Iron 1. Types a
Page 127 and 128:
Arc Welding of Cast Iron 1.2 Ductil
Page 129 and 130:
Arc Welding of Cast Iron 2. Weldabi
Page 131 and 132:
Arc Welding of Cast Iron (3) High p
Page 133 and 134:
Arc Welding of Cast Iron Table 4.2
Page 135 and 136:
Arc Welding of Cast Iron 5. Welding
Page 137 and 138:
Arc Welding of Cast Iron Weld metal
Page 139 and 140:
Arc Welding of Cast Iron ・Base me
Page 141 and 142:
Arc Welding of Cast Iron (5) The ba
Page 143 and 144:
Arc Welding of Cast Iron 5.6 Studdi
Page 145 and 146:
Chapter 5 Arc Welding for Hardfacin
Page 147 and 148:
Arc Welding for Hardfacing Therefor
Page 149 and 150:
Arc Welding for Hardfacing Force Mo
Page 151 and 152:
Arc Welding for Hardfacing 4. Weldi
Page 153 and 154:
Arc Welding for Hardfacing For the
Page 155 and 156:
Arc Welding for Hardfacing 5.2 Mart
Page 157 and 158:
Arc Welding for Hardfacing 6.1 Resi
Page 159 and 160:
Arc Welding for Hardfacing (Chippin
Page 161 and 162:
Arc Welding for Hardfacing B-bearin
Page 163 and 164:
Arc Welding for Hardfacing Vickers
Page 165 and 166:
Arc Welding for Hardfacing Joining
Page 167 and 168:
Arc Welding for Hardfacing 14 12 SA
Page 169:
Arc Welding for Hardfacing Typical
show all

Arc Welding of Specific Steels and Cast Irons

Create successful ePaper yourself

Delete template?

Save as template?