SMA490 channel beam
SMA490 is a specific grade of weathering steel that falls under the Japanese Industrial Standards (JIS) designation. Weathering steel, including SMA490, is designed to develop a protective rust-like surface layer when exposed to the atmosphere, which helps to mitigate the need for regular maintenance and painting while still providing structural strength. The "490" in SMA490 indicates the yield strength of the steel.
Products Description
SMA490 channel beam product Introduction：
|
Product |
SMA490 channel beam |
|
Grade |
Q195, Q215, Q235, Q345, SS400, A36, S235JR, ST37,etc |
|
Standard |
AISI, ASTM, BS, DIN, GB, JIS, etc |
|
Web |
Width: 100-900mm Thick: 5-16mm |
|
Flange |
Width:100-400 Thick: 7-34mm |
|
Length |
5.8m-12.0m or as your requirement |
|
Packing details |
In bundle with 6 circles of steel strip, each bundle about 2mts. |
|
Surface |
Perforated/galvanized/black |
|
Inspection |
BV,SGS,MTC,etc. |
|
Technique |
Hot rolled |
SMA490 channel steel chemical composition
| Element | Min | Max | Similar |
|---|---|---|---|
| Si | 0.1500 | 0.6500 | - |
| S | - | 0.0350 | - |
| P | - | 0.0350 | - |
| Other | - | - | - |
| Ni | 0.0500 | 0.3000 | - |
| Mn | - | 1.4000 | - |
| Cu | 0.3000 | 0.5000 | - |
| Cr | 0.4500 | 0.7500 | - |
| CEV | - | 0.4100 | - |
| C | - | 0.1800 | - |
SMA490 channel beam mechanical property
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 297 (≥) | 321 (≥) | 32 | 12 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
A "corrosion-resistant steel channel" in the context of SMA490 likely refers to a structural channel made from SMA490 weathering steel. Steel channels are structural shapes that have a "C" cross-section with two flanges at right angles to a central web. These channels are commonly used in construction for applications requiring structural support and framing.
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