This page is mainly introduced the CARBON STEEL H BEAM SN490B, including chemicalinformation,mechanical properties, physical properties, mechanical properties, heattreatment, and Micro structure, etc. It also contains the use of SN490B,such as it iscommonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materialsapplication.
CARBON STEEL H BEAM SN490B mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | 23.0 °C | Elastic modulus of 200 - 215 GPa | Typical for Low Carbon Steel |
| Elongation A5 | 23.0 °C | Elongation A5 of 17 - 23 % | - |
| Impact strength, Charpy notched | 0.0 °C | Impact strength, Charpy notched of 27 kJ/m² | - |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.29 [-] | Typical for Low Carbon Steel |
| Shear modulus | 23.0 °C | Shear modulus of 82 GPa | Typical for Low Carbon Steel |
| Tensile strength | 23.0 °C | Tensile strength of 490 - 610 MPa | - |
| Yield strength | 23.0 °C | Yield strength of 295 - 445 MPa | - |
Carbon equivalent: Ceq (%)= C + Mn/6 + Si/24 + Ni/40 + Cr/5 + Mo/4 + V/14
Crack parameter in welding: Pcm (%)= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/10 + 5B
*1．With a web thickness of 9 mm or less, upper limit does not apply.
*2．Applies to a flange thickness of 12 mm to 100 mm. With a web thickness of 9 mm or less, upper limit is
85%.
*3．With a thickness of 12 mm or less, impact value does not apply.
*4．Ceq or Pcm applies under agreement between the parties concerned.
*5．Ultrasonic testing is done when agreed by the parties concerned. Acceptance criteria shall be Grade Y
or equivalent of JIS G 0901.
*6．Cr content applies to lots manufactured since October 1, 2011.
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