VT machining offers CNC Routing for Q345 Steel (GB/T 1591 (now Q355) / ~S355JR), typically supplied hot-rolled. Chinese low-alloy high-strength steel; replaced by Q355 in GB/T 1591-2018.
CNC Routing Notes for Q345 Steel
Routing is only economical in Q345 Steel for thin sections; for thicker plate we usually recommend milling, laser or waterjet instead.
For estimating, a 100 × 100 × 10 mm block of Q345 Steel weighs about 0.79 kg.
Starting Parameters for CNC Routing Q345 Steel
| Cutting speed (carbide) | 205-360 m/min |
|---|---|
| Feed per tooth | 0.035-0.123 mm |
| Spindle speed, Ø6 mm end mill | 10880-19100 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion (5-8%); dry is possible for interrupted cuts |
Starting values for Q345 Steel, Hot-rolled; optimised on the first article.
Full material data for Q345 Steel (GB/T 1591 (now Q355) / ~S355JR) is on the CNC Milling Q345 Steel page.
More on CNC Routing Steel
Finishing options, quality documentation and general cnc routing guidance for all steel grades are on our CNC Routing Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Routing Q345 Steel
Send a STEP/IGES model or PDF drawing, confirm Q345 Steel and its condition (we usually see it supplied hot-rolled), the quantity, critical tolerances and any finish or certificate requirements.
Q345 Steel in Other Processes
Related
Send the drawing, the Q345 Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC Routing Q345 Steel?
CNC Routing prototypes for Q345 Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Can VT machining make custom Q345 Steel parts to my drawing?
Yes. Q345 Steel machining is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
What is CNC Routing Q345 Steel and how is it done?
CNC Routing Q345 Steel refers to cNC routing cuts profiles and openings in sheet and plate at high feed rates with a rotating router bit. Applied to Q345 Steel — strong, economical and widely available — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Does CNC Routing Q345 Steel require dedicated tooling?
Most Q345 Steel machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.