Stage 01
Heat approval
Mill certificates reviewed against the order specification; every heat number logged before cutting.
- Recorded
- Heat number, mill certificate
- Control
- Chemistry against the order
- Hold point
- PMI on receipt
How it is made
Melt to
manifest.
Seven stages, one roof. From the heat number on a bar of stock to the stencil on a packed bundle, every step stays under our own control — and on our own certificate.
0stages, under one roof
0%non-destructive testing
3.1EN 10204 certificate per heat
1heat number, start to finish
The sequence
Walk the line,
stage by stage.
Pick a stage, or step through them in order. Each one shows what we record, what we hold to, and where the part stops until someone signs it off.
Stage 02
Forming
Hot extrusion, cold drawing, pilgering or automated TIG welding, depending on the family and wall. Forged bodies are upset to near-net shape, so the grain follows the body rather than being cut across it.
- Recorded
- Route and heat, per batch
- Control
- Near-net shape, grain flow
Stage 03
Heat treatment
Solution annealing and bright annealing in pure hydrogen; quench rates recorded on chart.
- Recorded
- Quench rate, on chart
- Control
- Pure-hydrogen atmosphere
Stage 04
Straightening & sizing
Multi-roll straightening to tolerance, then cut, bevel and end-face on CNC. The first piece is gauged before the run, and every piece after it against the same setting.
- Recorded
- First-off gauge result
- Control
- Drawing tolerance
- Hold point
- First-off
Stage 05
Pickling & finishing
Acid pickling, passivation, polishing to 180–600 grit, or electropolish on request.
- Recorded
- Finish, against the order
- Control
- 180–600 grit or electropolish
Stage 06
Non-destructive testing
Hydrostatic, eddy current, ultrasonic, dye penetrant and PMI — on 100% of production, not a sample.
- Recorded
- Inspection records
- Control
- 100% of production
- Hold point
- Third-party inspection welcome
Stage 07
Certification & despatch
EN 10204 3.1 certificate raised, stencilled and bundled into ISPM-15 heat-treated crates. The heat number and its certificate travel with the goods.
- Recorded
- EN 10204 3.1 certificate
- Control
- Sea-worthy, ISPM-15 crates
- Hold point
- Certificate
01 / 07
Served
Where our steel ends up.
The same seven stages feed every one of these. What changes is the grade, the testing the order calls for, and the paperwork that has to travel with it.
- 01Chemical processingCorrosive and high-purity service
- 02Oil & gasUpstream, wellhead and sour service
- 03Power generationBoiler, condenser and instrument lines
- 04PetrochemicalRefinery units and hydrocarbon containment
- 05Mining & metalsAbrasive duty and hydraulic control
- 06PharmaceuticalHygienic, electropolished and traceable
- 07DesalinationSeawater and brine, duplex and super duplex
- 08ShipbuildingMarine systems and offshore modules
Made to your order
From this process
to your line.
Send the drawing or the bill of materials as it stands. We will come back with the grade, the testing your order needs and a price against it.