肉厚な4130合金鋼丸棒。ノーマライズ処理済み、冷間仕上げ、工場出荷時の未研磨表面。直径1.25Inch 、長さ12Inch 。構造用フレーム、歯車、締結部品、航空機外装用。

1.25in x 12in 4130 Alloy Round Bar for Structures
✔️ Normalized 4130 steel, strong, weldable, machinable 1.25" dia x 12" length

4130 alloy steel round bar is a versatile stock product used in structural frames, gears, fasteners, and aircraft exteriors. The normalized finish enhances machinability and weldability, making it a reliable choice for aerospace, automotive, and industrial projects.

✅ 1.25" diameter, 12" length, single-piece stock
✅ 4130 alloy steel, normalized finish, mill unpolished surface
✅ Meets ASTM-A108, AMS-6348, AMS-6370, AMS/MIL-S-6758

💡 What is 4130 alloy steel used for in structural and aerospace applications?

4130 steel is a handy choice when you need strong, weldable material that machinists can work with. This makes it a go-to for building sturdy frames, gears, fasteners, and exterior panels in aerospace and automotive projects.

- High strength-to-weight ratio for frames and brackets
- Excellent weldability for assemblies
- Good machinability for precision components
- Heat-treatable to tailor hardness
✝️