Welding Toolbar Download Page Welding Directory Image
Home Link to us DirectoryNEW Site map Search Language

Index >>Welding of Tool Steel and Carbon Steels >> Welding of Carbon Steels

Welding of Carbon Steels
Welding of Carbon Steels - Carbon steels differ from cast iron as regards the percentage of carbon. They contain carbon from 0.10 to 1.5% where as cast iron possesses carbon from 2.0 to 4.2%.
Carbon steels are classified as
Low carbon steels - C 0.05-30%
Medium carbon steels - C 0.30-50%
High carbon steels - C 0.50-5%
Carbon steels find uses as follows
Low carbon steel
0.05-15% C - Rivets, screws, press sheets, pipe, nail and chain
0.15-30% C - Plates, structural shapes and bars.

Medium carbon steel
0.30 - 50% C - Shafts, axles, connecting rods.
High carbon steel
0.50 - 0.75% C - Crankshaft, scraper blades, automobile springs, anvils, band saws, etc.
0.75 - 0.90% C - Punches and chisels.
0.90 - 1.0% C - Shear blades and knives
1.00 - 1.2% C - Taps, dies, milling cutters, lathe tools, etc.
1.20 - 1.3% C - Reamers and files.
1.30 - 1.5% C - Wire drawing dies and metal cutting saws.
Low Carbon Steels
(i) They are easy to weld and machine.
ii) Their melting point ranges from 1539 to 1515°C
(iii) They are relatively inexpensive.

Medium Carbon Steels
(i) They are not as easily weldable as low carbon steels and this is because of their higher carbon content which may lead to weld brittleness.
(ii) Their melting point ranges from 1515 to 1492°C.
(iii) They are harder and stronger than low carbon steels.
High Carbon Steels
(i) High carbon content limits weld quality.
(ii) Their melting point ranges from 1492 to 1405°C.
(iii) High carbon steels are seldom welded except for repair purposes.
Home | Site map | Submit Article | Directory | Search
  Language >> English | Français | Español | Deutsch | Italiano | Portugues | Japanese | Korean | Sim-Chinese