Digital Model

Corrosion Control — Anode Sizing and Galvanic Index Screening

Screening-level sacrificial-anode sizing to DNV-RP-B401 (2021 edition as implemented) for two reference geometries, plus anodic-index screening categories for metal pairs. Screening only: not a project CP design, not a material-compatibility finding, and not qualified for client delivery.

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 index screening

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 2026-10-27; 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).