Q345 Steel: Q345A Q345B Q345C Q345D Q345E Equivalent & Properties
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://alloyfyi.com/iframe/entity/q345-steel-q345a-q345b-q345c-q345d-q345e-equivalent-038-properties/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://alloyfyi.com/entity/q345-steel-q345a-q345b-q345c-q345d-q345e-equivalent-038-properties/Add a dynamic SVG badge to your README or docs.
[](https://alloyfyi.com/entity/q345-steel-q345a-q345b-q345c-q345d-q345e-equivalent-038-properties/)Use the native HTML custom element.
ファミリー: Structural Steel
性能評価
Performance Radar
| 特性 | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 3 / 10 |
| Lightweight | 5 / 10 |
| Machinability | 6 / 10 |
| Affordability | 9 / 10 |
| Heat Res. | 7 / 10 |
組成
機械的特性
| 硬度（ロックウェル） |
化学組成
| 元素 | 割合 (%) |
|---|---|
| B | – |
| C | 0.020 |
| N | 0.012 |
| P | 0.035 |
| S | 0.035 |
| V | 0.15 |
| Cr | 0.30 |
| Cu | 0.30 |
| Mn | 1.70 |
| Mo | 0.10 |
| Nb | 0.07 |
| Ni | 0.50 |
| Si | 0.025 |
| Ti | 0.20 |
| Al, ≥ | – |
| Quality Grade | 0.025 |
| Grade (steel number) | S355J2 (1.0553), S355K2 (1.0596), S355J2G4 (1.0577), S355K2G3 (1.0595), S355K2G4 (1.0596) |
| Grade: Imperial (SI) | 50W(350W) |
購入先 Q345 Steel: Q345A Q345B Q345C Q345D Q345E Equivalent & Properties
リンクから手数料が発生する場合がありますが、追加費用はかかりません。
説明
Q345 steel is a Chinese standard low alloy high strength structural steel. The material has a minimum yield strength of 345 MPa (50 ksi), and tensile strength of 470-630 Mpa (68-91 ksi). It has better properties than Q235. According to GB/T 1591 – 2008, Q345 material has 5 quality grades: Q345A, Q345B, Q345C, Q345D and Q345E. Q345, Q345A, Q345B, Q345C, Q345D and Q345E steel properties, datasheet and specification are listed in the tables below, including chemical composition, physical and machenical properties, etc. Chemical Composition Based on melting analysis.