Low Carbon Steel General Info
The most affordable of all structural metals is low-carbon steel, usually referred to as mild steel. It is utilized extensively for a variety of purposes.
Strengths
Very low cost, superior to higher carbon steels in terms of toughness, machinability, formability, and weldability. Cold-working improves machinability and strength.
Limitations
Low strength and poor hardenability as compared to higher carbon steels.
Designation
The AISI/SAE designations for carbon steels are 10xx, 11xx, 12xx, and 15xx. Low carbon steels have carbon contents as indicated by the last two numbers, which can reach 30. The EN designations 1.03zz and 1.04zz apply to low carbon steels.
Common uses
Numerous applications, including the reinforcement of concrete, building sections, roofing sheets, vehicle body panels, and cans.
| Low Carbon steel, AISI 1025 annealed | Equivalent Grades |
|---|---|
| UNS number | G10250 |
| US name | ASME 1025, ASTM M1025, ASTM 1025, ASME G10250, SAE 850, AMS 5045, ~SAE 853 Class 1 Type 5, ~SAE 853 Class 1 Type 4, ~SAE 853 Class 1 Type 3, ~SAE 853 Class 1 Type 2, ~SAE 853 Class 1 Type 1, ~SAE 040S, ~SAE 040C, ~SAE 040B, ~SAE 040A, ~ASTM FPA |
| EN name | S270GP |
| EN number | 1.0023 |
| GB (Chinese) name | ~ML25Mn |
| JIS (Japanese) name | SWH 400L, SWH 400, STW 400, STW 370, STPY 400, STKR 400, STKN400W, STK400, SSC 400, SKY 400, SKK 400, SDP2G, SDP2, SDP1TG, SDP1T, ~STPL 380, ~STPG 370, ~STKM13C, ~STKM13B, ~STKM13A, ~STC 590 A, ~STC 510 A, ~STC 440, ~STC 370, ~SPHT 3, ~SM400A |
