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Trade Verify
Address: NO.676 Liang Qing Road binhui District, Wuxi City, Jiangsu PR, China.
Contact name:Grealish
Jiangsu TISCO TPCO Metal Products Co.,Ltd. |
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Q235 Ss400 ASTM A36 S235jr Q345b S355jr SAE1020 SAE1045 Carbon Round Iron Rod Square Steel Bar
What are carbon steels used for?
Carbon steels are usually relatively soft and have low strength. They do, however, have high ductility, making them excellent for machining, welding and low cost.
High-strength, low-alloy steels (HSLA) are also often classified as low-carbon steels, however, also contain other elements such as copper, nickel, vanadium and molybdenum. Combined, these comprise up to 10 wt.% of the steel content. High-strength, low-alloy steels, as the name suggests, have higher strengths, which is achieved by heat treatment. They also retain ductility, making them easily formable and machinable. HSLA are more resistant to corrosion than plain low-carbon steels.
Carbon content (wt.%) | Microstructure | Properties | Examples | |
|---|---|---|---|---|
| Low-carbon steel | < 0.25 | Ferrite, pearlite | Low hardness and cost. High ductility, toughness, machinability and weldability | AISI 304, ASTM A815, AISI 316L |
| Medium-carbon steel | 0.25 – 0.60 | Martensite | Low hardenability, medium strength, ductility and toughness | AISI 409, ASTM A29, SCM435 |
| High-carbon steel | 0.60 – 1.25 | Pearlite | High hardness, strength, low ductility | AISI 440C, EN 10088-3 |
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