taonga tuʻanga

ʻāuri mārō

Mild to alloy and tool steels — tooling, shafts, wear duty.

4 quote-ready grades

Mild steel

AKA: A36 / Q235 class

CNC ʻoti metarametaravave roa tuʻanga mua

EconomicalPowder / black oxideEasy to machine

Economical structural steel; powder / black oxide / zinc common.

AKA: 1045 / C45

CNC ʻoti metaravave roa tuʻanga mua

Medium carbonShaftsHeat-treatable

Medium-carbon steel; stronger than mild steel — common for shafts.

AKA: 4140 / 42CrMo class

CNC ʻoti metaravave roa tuʻanga mua

High strengthTough / impactConfirm heat treat

Alloy structural steel; confirm heat treatment with engineering.

AKA: general tool-steel class

CNC ʻoti metaravave roa tuʻanga mua

Wear resistantTooling classSpecify grade in notes

Wear/tooling class — specify exact grade in notes (SKD / S136 etc. via engineer).