Digital Model

Corrosion Control — Anode Sizing and Galvanic Compatibility

Cathodic-protection anode sizing across structures, climates and coating conditions, plus galvanic compatibility for every metal pair in three exposure environments.

Anode sizing

Structure	Climate	Coating	Design Life Years	Anode Mass Kg	Anode Count	Current Mean A	Current Final A
4-leg jacket	temperate	bare	10	12,692.3	64	260.8	312.4
4-leg jacket	temperate	bare	15	19,038.4	96	260.8	312.4
4-leg jacket	temperate	bare	20	25,384.5	127	260.8	312.4
4-leg jacket	temperate	bare	25	31,730.7	159	260.8	312.4
4-leg jacket	temperate	bare	30	38,076.8	191	260.8	312.4
4-leg jacket	temperate	bare	35	44,422.9	223	260.8	312.4
4-leg jacket	temperate	bare	40	50,769.1	254	260.8	312.4
4-leg jacket	temperate	aged-coating	10	11,898	60	244.48	292.6
4-leg jacket	temperate	aged-coating	15	17,847	90	244.48	292.6
4-leg jacket	temperate	aged-coating	20	23,796	119	244.48	292.6
4-leg jacket	temperate	aged-coating	25	29,745.1	149	244.48	292.6
4-leg jacket	temperate	aged-coating	30	35,694.1	179	244.48	292.6
4-leg jacket	temperate	aged-coating	35	41,643.1	209	244.48	292.6
4-leg jacket	temperate	aged-coating	40	47,592.1	238	244.48	292.6
4-leg jacket	temperate	good-coating	10	11,103.8	56	228.16	272.8
4-leg jacket	temperate	good-coating	15	16,655.7	84	228.16	272.8
4-leg jacket	temperate	good-coating	20	22,207.6	112	228.16	272.8
4-leg jacket	temperate	good-coating	25	27,759.5	139	228.16	272.8
4-leg jacket	temperate	good-coating	30	33,311.4	167	228.16	272.8
4-leg jacket	temperate	good-coating	35	38,863.2	195	228.16	272.8
4-leg jacket	temperate	good-coating	40	44,415.2	223	228.16	272.8
4-leg jacket	temperate	premium-coating	10	7,424.6	38	152.56	181.9
4-leg jacket	temperate	premium-coating	15	11,136.9	56	152.56	181.9
4-leg jacket	temperate	premium-coating	20	14,849.2	75	152.56	181.9
4-leg jacket	temperate	premium-coating	25	18,561.5	93	152.56	181.9
4-leg jacket	temperate	premium-coating	30	22,273.8	112	152.56	181.9
4-leg jacket	temperate	premium-coating	35	25,986	130	152.56	181.9
4-leg jacket	temperate	premium-coating	40	29,698.3	149	152.56	181.9
4-leg jacket	tropical	bare	10	9,013.1	46	185.2	236.8
4-leg jacket	tropical	bare	15	13,519.6	68	185.2	236.8
4-leg jacket	tropical	bare	20	18,026.1	91	185.2	236.8
4-leg jacket	tropical	bare	25	22,532.7	113	185.2	236.8
4-leg jacket	tropical	bare	30	27,039.2	136	185.2	236.8
4-leg jacket	tropical	bare	35	31,545.7	158	185.2	236.8
4-leg jacket	tropical	bare	40	36,052.3	181	185.2	236.8
4-leg jacket	tropical	aged-coating	10	8,446.6	43	173.56	221.68
4-leg jacket	tropical	aged-coating	15	12,669.9	64	173.56	221.68
4-leg jacket	tropical	aged-coating	20	16,893.2	85	173.56	221.68
4-leg jacket	tropical	aged-coating	25	21,116.5	106	173.56	221.68
4-leg jacket	tropical	aged-coating	30	25,339.8	127	173.56	221.68
4-leg jacket	tropical	aged-coating	35	29,563	148	173.56	221.68
4-leg jacket	tropical	aged-coating	40	33,786.3	169	173.56	221.68
4-leg jacket	tropical	good-coating	10	7,880.1	40	161.92	206.56
4-leg jacket	tropical	good-coating	15	11,820.2	60	161.92	206.56
4-leg jacket	tropical	good-coating	20	15,760.2	79	161.92	206.56
4-leg jacket	tropical	good-coating	25	19,700.3	99	161.92	206.56
4-leg jacket	tropical	good-coating	30	23,640.3	119	161.92	206.56
4-leg jacket	tropical	good-coating	35	27,580.4	138	161.92	206.56
4-leg jacket	tropical	good-coating	40	31,520.4	158	161.92	206.56
4-leg jacket	tropical	premium-coating	10	5,295.9	27	108.82	138.16

Showing 50 of 112 rows — full table on Hugging Face.

Galvanic compatibility

Environment	Metal A	Metal B	Verdict	Delta V	Allowable Delta V	Environment Label	Metal A Label	Metal A Anodic Index V	Metal B Label	Metal B Anodic Index V	Rank	Anodic Member
harsh_marine	gold	gold	OK	0	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Gold	0	0	— (same index)
harsh_marine	gold	silver	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Silver	0.15	0	Silver
harsh_marine	gold	nickel	PROTECT	0.3	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Nickel	0.3	2	Nickel
harsh_marine	gold	monel_nickel_copper	PROTECT	0.3	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Monel (Ni-Cu)	0.3	2	Monel (Ni-Cu)
harsh_marine	gold	copper	PROTECT	0.35	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Copper	0.35	2	Copper
harsh_marine	gold	cupronickel	PROTECT	0.35	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Cupronickel	0.35	2	Cupronickel
harsh_marine	gold	brass	PROTECT	0.4	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Brass	0.4	2	Brass
harsh_marine	gold	bronze	PROTECT	0.45	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Bronze	0.45	2	Bronze
harsh_marine	gold	stainless_316_passive	PROTECT	0.5	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	316 SS (passive)	0.5	2	316 SS (passive)
harsh_marine	gold	stainless_304_passive	PROTECT	0.5	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	304 SS (passive)	0.5	2	304 SS (passive)
harsh_marine	gold	carbon_steel	PROTECT	0.85	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Carbon steel	0.85	2	Carbon steel
harsh_marine	gold	cast_iron	PROTECT	0.85	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Cast iron	0.85	2	Cast iron
harsh_marine	gold	aluminum_alloy	PROTECT	0.9	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Aluminum alloy	0.9	2	Aluminum alloy
harsh_marine	gold	cadmium_plated	PROTECT	0.95	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Cadmium (plated)	0.95	2	Cadmium (plated)
harsh_marine	gold	zinc	PROTECT	1.25	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Zinc	1.25	2	Zinc
harsh_marine	gold	magnesium	PROTECT	1.75	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Gold	0	Magnesium	1.75	2	Magnesium
harsh_marine	silver	gold	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Gold	0	0	Silver
harsh_marine	silver	silver	OK	0	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Silver	0.15	0	— (same index)
harsh_marine	silver	nickel	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Nickel	0.3	0	Nickel
harsh_marine	silver	monel_nickel_copper	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Monel (Ni-Cu)	0.3	0	Monel (Ni-Cu)
harsh_marine	silver	copper	MARGINAL	0.2	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Copper	0.35	1	Copper
harsh_marine	silver	cupronickel	MARGINAL	0.2	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Cupronickel	0.35	1	Cupronickel
harsh_marine	silver	brass	PROTECT	0.25	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Brass	0.4	2	Brass
harsh_marine	silver	bronze	PROTECT	0.3	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Bronze	0.45	2	Bronze
harsh_marine	silver	stainless_316_passive	PROTECT	0.35	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	316 SS (passive)	0.5	2	316 SS (passive)
harsh_marine	silver	stainless_304_passive	PROTECT	0.35	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	304 SS (passive)	0.5	2	304 SS (passive)
harsh_marine	silver	carbon_steel	PROTECT	0.7	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Carbon steel	0.85	2	Carbon steel
harsh_marine	silver	cast_iron	PROTECT	0.7	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Cast iron	0.85	2	Cast iron
harsh_marine	silver	aluminum_alloy	PROTECT	0.75	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Aluminum alloy	0.9	2	Aluminum alloy
harsh_marine	silver	cadmium_plated	PROTECT	0.8	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Cadmium (plated)	0.95	2	Cadmium (plated)
harsh_marine	silver	zinc	PROTECT	1.1	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Zinc	1.25	2	Zinc
harsh_marine	silver	magnesium	PROTECT	1.6	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Silver	0.15	Magnesium	1.75	2	Magnesium
harsh_marine	nickel	gold	PROTECT	0.3	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Gold	0	2	Nickel
harsh_marine	nickel	silver	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Silver	0.15	0	Nickel
harsh_marine	nickel	nickel	OK	0	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Nickel	0.3	0	— (same index)
harsh_marine	nickel	monel_nickel_copper	OK	0	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Monel (Ni-Cu)	0.3	0	— (same index)
harsh_marine	nickel	copper	OK	0.05	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Copper	0.35	0	Copper
harsh_marine	nickel	cupronickel	OK	0.05	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Cupronickel	0.35	0	Cupronickel
harsh_marine	nickel	brass	OK	0.1	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Brass	0.4	0	Brass
harsh_marine	nickel	bronze	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Bronze	0.45	0	Bronze
harsh_marine	nickel	stainless_316_passive	MARGINAL	0.2	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	316 SS (passive)	0.5	1	316 SS (passive)
harsh_marine	nickel	stainless_304_passive	MARGINAL	0.2	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	304 SS (passive)	0.5	1	304 SS (passive)
harsh_marine	nickel	carbon_steel	PROTECT	0.55	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Carbon steel	0.85	2	Carbon steel
harsh_marine	nickel	cast_iron	PROTECT	0.55	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Cast iron	0.85	2	Cast iron
harsh_marine	nickel	aluminum_alloy	PROTECT	0.6	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Aluminum alloy	0.9	2	Aluminum alloy
harsh_marine	nickel	cadmium_plated	PROTECT	0.65	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Cadmium (plated)	0.95	2	Cadmium (plated)
harsh_marine	nickel	zinc	PROTECT	0.95	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Zinc	1.25	2	Zinc
harsh_marine	nickel	magnesium	PROTECT	1.45	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Nickel	0.3	Magnesium	1.75	2	Magnesium
harsh_marine	monel_nickel_copper	gold	PROTECT	0.3	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Monel (Ni-Cu)	0.3	Gold	0	2	Monel (Ni-Cu)
harsh_marine	monel_nickel_copper	silver	OK	0.15	0.15	Harsh / marine (allowable ΔV = 0.15 V)	Monel (Ni-Cu)	0.3	Silver	0.15	0	Monel (Ni-Cu)

Showing 50 of 768 rows — full table on Hugging Face.

Source: aceengineer/digitalmodel-corrosion on Hugging Face · pipeline

Snapshot: Rendered from a cached snapshot on 2026-07-29; the upstream dataset may have moved since. Use “Refresh to latest” for current data.

Data limits: Reference geometries only (a 4-leg jacket and an XL monopile) — no client or vessel-specific data. Anode sizing follows DNV-RP-B401 across 2 structures x 2 climates x 4 coating conditions x 7 design lives. Galvanic verdicts are anodic-index screening categories for all 16x16 metal pairs, including a metal against itself; they indicate where to look, and are not a substitute for a project-specific CP design. Environment allowable dV spans 0.15 V (harsh marine) to 0.5 V (controlled indoor).