Products Description
how to identify the material of Q235 and Q345?
The color difference has nothing to do with the material of the steel, but is caused by the different cooling methods after the steel is rolled out. Generally, the surface is red after natural cooling. If the method of rapid cooling is used, the surface forms a dense oxide layer, and it will show black.
1,The factory can use the test welding method to roughly distinguish the two materials. For example, a small round steel is welded on two steel plates with E43 welding rod, and then a shear force is applied to roughly distinguish the two steel plates according to the damage.
2,The factory can also use the grinding wheel to roughly distinguish the two materials, Q235 steel with grinding wheel grinding, the sparks are a round particle, while Q345 sparks are bifurcated.
3,There is also according to the color difference between the two steel shear surface can also be roughly distinguished between the two steel. In general, the color of Q345 shear mouth is white
4,For the steel just in, according to the color of the steel plate can be distinguished between Q235 and Q345 material: the color of Q235 is greenish, Q345 some red. But it can't be distinguished after a long time.
5,the infallible method the most can distinguish the material test is chemical analysis, Q235 and Q345 carbon content is not the same, while the chemical content is also different.
Product Details
| Product Name | Q345 Q235 equal angle steel |
| Length | As your required |
| Standard | ASTM/ GB/ JIS/ EN ect. |
| Delivery Time | According to your quantity |
| Payment Terms | FOB/ CIF/ EXW/ DDP |
| Origin | China |
| Sample | Yes |
| Tolerance | ±0.3 |
| Packing | Packed with steel belts tightly, in bundle |
GNEE Group Receives Visiting Customers
Our factory has complete production facilities, and provides laser cutting , bending, welding, painting, assembly and other processing services.
We have own large-scale indoor warehouse with perennial spot stocks totally above 5000 tons mainly include 2000 tons galvanized
steel series and 2500 tons carbon steel series
All the products have to pass the inspections such as tension test, NMness test, spectrophotometer test, salt spray test and PH
test before leaving the factory .
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