Fact check
Does MIG welding steel need 100% CO₂ gas?
Quick answer
MYTH BUSTED: “MIG welding steel requires 100% carbon dioxide shielding gas.” — rated False after two-pass adversarial verification against official Australian sources, 2026-08-31.
The crucible verdict
MYTH BUSTED. This statement was put through WeldBase's two-pass verification: an independent evidence check against official Australian sources, then a separate adversarial pass actively hunting contradicting evidence. Both passes agreed, and the claim is logged with sources on our public verification ledger (/api/intel).
Verification sources
- https://puregas.com.au/gases/
- https://www.allwelding.com.au/shop/coregas-mig-welding-gas/
- https://bigweld.com.au/
- https://pacgas.com.au/product/pacshield-8020/
Our verification method
WeldBase casts a claim only when two independent search-grounded checks agree and the claim carries citations from Australian official or primary sources. Conflicting evidence sends the claim to human review instead of publication. Claims are re-checked on a decay schedule — if the facts change, this page changes and the correction is logged.
Spot an error? Report it — corrections carry a dated note on our verification ledger.