Heavy Plate Flame Cutting & Beveling Services
Once plate thickness passes 25mm, laser and plasma stop being economical - and edge quality starts deciding weld cost. The parts that fail pressure tests or NDT audits are rarely the ones cut clean: they are the ones whose cut face carried slag, drag lines, and a bevel angle nobody specified. Thick-plate buyers need a shop that treats flame cutting as weld prep, not as a rough saw.
Our CNC flame cutting line handles carbon steel from 25mm up to 150mm, with single and double bevel cutting up to 45° so your weld prep arrives ready for the welder. Each plate is leveled, nested for yield, and cut against a written WPS-linked checklist. Material certificates are kept with every batch.
Flame Cutting Capabilities
| Item | Specification |
|---|---|
| Process | CNC oxy-fuel flame cutting |
| Thickness range | 25 – 150 mm carbon steel |
| Cutting tolerance | ±1 mm typical (per plate grade & thickness) |
| Bevel cutting | Single & double bevel, up to 45° |
| Edge condition | Machine-cut face, minimal slag, cleaned before delivery |
| Material certification | Mill test certificates supplied per batch |
Materials Suitable for Flame Cutting
Carbon and low-alloy structural steels: Q235/Q345 (Grades 250/350 equivalent), and common heavy plate grades used in Australian structural work. Flame cutting is not for stainless steel or aluminum - for those, or for precision profiles under 25mm, use our laser cutting service instead.
Bevel Cutting: The Difference Between Fit-Up and Field Rework
A correct bevel angle and root face are what allow a full-penetration weld to be laid in one pass with consistent throat thickness. We cut bevels to your weld procedure - V, double-V, or K-prep - and verify the angle on first article. When the same shop cuts and welds your heavy plate, there is no hand-off gap: the bevel spec is agreed with our own welding engineers before the plate is ever touched.
Typical Applications
Structural steel: beam and column base plates, gussets, stiffeners for AS/NZS 5131 assemblies
Equipment foundations: machine base plates and anchor-plate clusters
Marine & port: mooring plate blanks, deck fittings, structural brackets
Heavy equipment: crusher and screen wear-part blanks, bucket and frame components
Why Buyers Trust Us with Heavy Plate
Heavy plate failures are expensive and slow. We back every batch with mill certificates, cut to AS/NZS 5131 structural requirements, and weld the bevels we cut - so the quality is not a hand-off promise, it is a closed loop under one roof and one quality system.
Quality Control on Heavy Plate
Leveling check before cutting, first-article bevel measurement, in-process thickness and drag-line inspection, and a final dimension report with mill certificates on request. Welders work from the same WPS, so cut quality is matched to the joint requirement - not to a generic standard.
How an Order Moves Through Our Shop
Send the drawing with thickness, grade and bevel requirement → we confirm cuttable geometry, nesting yield and material certification within 24 hours → first-article bevel measurement on your critical joints → batch cutting against the WPS-linked checklist → final dimension report with mill certificates. Thick-plate orders routinely continue into robotic welding in the same shop, so the bevel spec agreed at quoting is the bevel the welder actually receives.
Related Fabrication Services
Laser cutting - precision profiles under 25mm, ±0.1mm
Robotic welding - heavy plate welding with CEV control and preheat
Post-weld machining - bearing faces and bolt pads on weldments
Flame Cutting FAQ
Q: What is the maximum plate thickness you can cut?
A: Up to 150mm carbon steel; beyond that we quote per project and can arrange subcontract or alternative processes.
Q: Can you cut bevels?
A: Yes - single and double bevel up to 45°, prepared to your weld procedure.
Q: Do you supply material certificates?
A: Yes, mill test certificates are kept with every batch and provided on request.
Q: What tolerance can you hold on heavy plate?
A: ±1mm typical for profile cuts, verified on first article before the batch runs.
Q: Can flame-cut parts go to galvanizing?
A: Yes. We cut and prep parts for hot-dip galvanizing to AS/NZS 4680 - holes, drainage, and edge condition handled before coating.
Need heavy plate cut to your weld spec? Send your drawing and bevel requirement for an itemized quote - within 24 hours.