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CARBON STEEL

CARBON STEEL

Mar 1,2022

Carbon steel is a steel with carbon content from about 0.05 up to 2.1 percent by weight.

Mild steel (iron containing a small percentage of carbon, strong and tough but not readily tempered), also known as plain-carbon steel and low-carbon steel, is now the most common form of steel because its price is relatively low while it provides material properties that are acceptable for many applications. Mild steel contains approximately 0.05–0.30% carbon. Mild steel has a relatively low tensile strength, but it is cheap and easy to form; surface hardness can be increased through carburizing.

Standard No: GB/T 1591  High strength low alloy structural steels

CHEMICAL COMPOSITION  %MECHANICAL PROPERTIES
C( %)Si( %)
(Max)
Mn( %)P( %)
(Max)
S( %)
(Max)
YS (Mpa)
(Min)
TS (Mpa)EL( %)
(Min)
Q1950.06-0.120.300.25-0.500.0450.045195315-39033
Q235B0.12-0.200.300.3-0.70.0450.045235375-46026
Q355B(Max)0.240.55(Max)1.60.0350.035355470-63022

Mild steel (iron containing a small percentage of carbon, strong and tough but not readily tempered), also known as plain-carbon steel and low-carbon steel, is now the most common form of steel because its price is relatively low while it provides material properties that are acceptable for many applications. Mild steel contains approximately 0.05–0.30% carbon. Mild steel has a relatively low tensile strength, but it is cheap and easy to form; surface hardness can be increased through carburizing.

Standard No: GB/T 1591  High strength low alloy structural steels

CHEMICAL COMPOSITION  %MECHANICAL PROPERTIES
C( %)Si( %)
(Max)
Mn( %)P( %)
(Max)
S( %)
(Max)
YS (Mpa)
(Min)
TS (Mpa)EL( %)
(Min)
Q1950.06-0.120.300.25-0.500.0450.045195315-39033
Q235B0.12-0.200.300.3-0.70.0450.045235375-46026
Q355B(Max)0.240.55(Max)1.60.0350.035355470-63022
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