RapidDirect CNC machines carbon, alloy, die, tool, spring, bearing, galvanized, and mild steel. Available grades include 1018, 1020, 1045, 4130, 4140, 4340, 1566, 9260, SPCC, SGCC, and SECC. Carbon steel: 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36, ST37; alloy steel: 4J36; die steel: 718H, P20, S136, S7; chisel tool steel: D2/SKD11, SKD61; high speed steel: SKH51; spring steel: 1566, 9260; tool steel: A2; bearing steel: E51100/SUJ1, E52100/SUJ2; galvanized steel: SGCC, SECC; and SPCC.
Steel in CNC Machining
Steel combines strength, durability, versatility, and cost-effective production. RapidDirect CNC machines a broad selection of carbon, alloy, tool, spring, bearing, galvanized, and mild steel grades for automotive, aerospace, construction, and industrial components.
- Strength and durability: Steel provides the strength and structural stability required for demanding components.
- Broad grade selection: Choose carbon, alloy, tool, spring, bearing, galvanized, or mild steel for your CNC parts.
- Versatile finishing: Enhance the appearance and performance of steel parts with plating, passivation, or powder coating.
Selection note: Steel combines high strength with a wide range of machinable grades. RapidDirect offers as-machined surfaces, electroplating, passivation, and powder coating for CNC steel components.
Steel CNC Machining Capabilities
| Price | $$$ |
|---|---|
| Lead time | Under 10 days |
| Wall thickness | 0.75 mm |
| Tolerances | ±0.005 in (±0.125 mm) |
| Maximum part size | 2000 × 800 × 1000 mm |
| Available steel | Carbon steel: 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36, ST37; alloy steel: 4J36; die steel: 718H, P20, S136, S7; chisel tool steel: D2/SKD11, SKD61; high speed steel: SKH51; spring steel: 1566, 9260; tool steel: A2; bearing steel: E51100/SUJ1, E52100/SUJ2; galvanized steel: SGCC, SECC; and SPCC. |
Compare Steel Grades
Compare SPCC, 1018, 1020, 1040, 1045, A36, S355, 4140, 4130, 4340, A2, D2, and P20 by yield strength, ductility, hardness, and density.
Steel Manufacturing Facilities




Steel Parts & Applications


Steel CNC Machining FAQs
Learn about Steel steel cnc machining, materials, capabilities, and finishing options.