06
Iron and steel
Earth parallel: Iron Age. Goal: cheap, strong iron and a hard steel edge. The blacksmith becomes the centre of the settlement.
| ID | Achievement | About year |
|---|---|---|
| 06.01 | Double board bellows with flap valvesa steady, strong air blast | 3 |
| 06.02 | Mined and roasted iron oreroasting drives off water and makes it porous | 3 |
| 06.03 | Bloomery furnacea clay shaft about chest high | 3 |
| 06.04 | Iron blooma spongy lump of iron and slag, never fully melted | 3 |
| 06.05 | Wrought iron barthe bloom hammered hot until the slag is squeezed out | 3 |
| 06.06 | Smith's forgeraised hearth, side blast, quenching trough | 3 |
| 06.07 | Iron hammers, tongs and anvil | 3 |
| 06.08 | Forge weldingiron joined to iron at white heat | 3 |
| 06.09 | Smith's tool sethot chisels, punches, drifts, fullers and swages | 4 |
| 06.10 | Blister steeliron bars baked for days packed in charcoal | 4 |
| 06.11 | Shear steelblister steel folded and welded until even | 4 |
| 06.12 | Hardening and temperingquench hard, then reheat to the right colour | 4 |
| 06.13 | Steel-edged axes, adzes and chisels | 4 |
| 06.14 | Files and raspsthe tool that shapes all other metal tools | 4 |
| 06.15 | Sawshand saw, frame saw and two-man pit saw | 4 |
| 06.16 | Augers, drill bits and brace | 4 |
| 06.17 | Crank grindstonea turning sandstone wheel in a water trough | 4 |
| 06.18 | Nails, spikes and rivets | 4 |
| 06.19 | Chain and hooks | 4 |
| 06.20 | Draw plate and drawn wireiron and copper wire of even thickness | 4 |
| 06.21 | Knives, shears, sickles and scythes | 4 |
| 06.22 | Picks, shovels, hoes, crowbars and sledgehammers | 4 |
| 06.23 | Iron hardwarehinges, latches, bands and hoops | 4 |
| 06.24 | Lock and keya warded iron lock for the store, the powder and the medicines | 5 |
| 06.25 | Hammered iron sheet, pans and griddles | 5 |
| 06.26 | Steel needles, awls and fish hooks | 5 |
| 06.27 | Flint and steel strikerfire in seconds | 5 |
| 06.28 | Wedge-clamp bench viseholds work for filing | 5 |
| 06.29 | Brazingstrong joints made with melted copper | 5 |
| 06.30 | Timbered underground mine ⚠follows ore and coal into the hill | 5 |
| 06.31 | Steel surgical instrumentsscalpels, forceps, tooth forceps, scissors, bone saw and curved needles | 5 |