Stainless Steel 430

Stainless collection and handling QMS

• Chromium, nickel <0.75% (CRITICAL verification)
• Iron, carbon, sulfur, phosphorus
• Magnetic property confirmation

• Explicit Statement: 'Magnetic (Ferritic)
• Nickel <0.75%
• Grade 430 Confirmed'

£2–3 million general liability

NO or weak magnetic response (should be strong)

• 430 Is Strongly Ferritic Magnetic
• No Magnetic Response Indicates 304/316 Contamination

Ni >0.75% (should be <0.75%)

Ni >0.75% indicates austenitic contamination (304 = 8-10.5%, 316 = 10-14%)

Cr <16.0% OR >18.0%

Grade specification violation

Fe <80% OR >88%

• Ferritic Definition Violation
• Too Much Alloying Indicates Wrong Grade

>0.5% molybdenum

• 430 Has No Molybdenum
• Presence Indicates 316 Contamination

>0.12%

• Ferritic Embrittlement
• Workability Impairment

Evidence of 304, 316, or other austenitic grades

• Ferritic/Austenitic Mixing Compromises Specifications
• Mills Segregate Grades

Any visible or suspected mixing

• Carbon Steel Degrades Stainless Furnace
• Melt Failure

Any detectable

Any visible

Any detectable