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Forging and casting drawing notes

By Fred Vierheller, senior mechanical engineer, Certified SOLIDWORKS Professional · Updated November 4, 2026

14 copy-ready notes for forging and sand / investment casting, in English and Spanish. Copy a note, replace the [bracketed] example values, and check the "Watch for" line before you release the drawing.

Values in [brackets] are examples; replace them with your own. Notes marked Verify values rely on common practice; confirm them with your supplier or design engineer. These notes are examples, not an engineering approval of your drawing.

FRG-01 Material and forging specFRG-02 Forging tolerancesFRG-03 Parting line, mismatch and flashFRG-04 Scale and surfaceFRG-05 Grain flowFRG-06 Heat treatmentFRG-07 Magnetic particle inspectionFRG-08 Serialization and markingCST-01 AlloyCST-02 Casting tolerancesCST-03 Radiographic qualityCST-04 Weld repairCST-05 Datum targetsCST-06 Surface roughness as cast

Forging

FRG-01

Material and forging spec

Verify values
EN
MATERIAL: [4340 STEEL]. FORGE PER [SAE AMS-F-7190 / CUSTOMER SPEC].
ES
MATERIAL: [ACERO 4340]. FORJAR SEGÚN [SAE AMS-F-7190 / ESPECIFICACIÓN DEL CLIENTE].

Basis: AMS-F-7190 status and scope: verify

FRG-02

Forging tolerances

Verify values
EN
UNTOLERANCED FORGED DIMENSIONS PER [FORGING INDUSTRY ASSOCIATION TOLERANCES FOR IMPRESSION DIE FORGINGS], [COMMERCIAL] GRADE.
ES
DIMENSIONES FORJADAS SIN TOLERANCIA SEGÚN [TOLERANCIAS DE LA FORGING INDUSTRY ASSOCIATION PARA FORJA EN MATRIZ], GRADO [COMERCIAL].

Basis: FIA tolerance tables. verify

FRG-03

Parting line, mismatch and flash

Verify values
EN
PARTING LINE AS SHOWN. DIE MISMATCH [.030] MAX. FLASH EXTENSION AFTER TRIM [.030] MAX. DIE CLOSURE +[.060]/-[.020].
ES
LÍNEA DE PARTICIÓN COMO SE MUESTRA. DESALINEACIÓN DE MATRIZ [.030] MÁX. REBABA DESPUÉS DEL RECORTE [.030] MÁX. CIERRE DE MATRIZ +[.060]/-[.020].

Basis: convention; values are examples. verify

FRG-04

Scale and surface

Verify values
EN
REMOVE SCALE BY [SHOT BLAST]. SURFACE DEFECTS (LAPS, SEAMS) DEEPER THAN [.015] NOT PERMITTED.
ES
RETIRAR LA CASCARILLA CON [GRANALLADO]. NO SE PERMITEN DEFECTOS SUPERFICIALES (TRASLAPES, COSTURAS) MAYORES A [.015] DE PROFUNDIDAD.

Basis: convention. verify

FRG-05

Grain flow

Verify values
EN
GRAIN FLOW SAMPLE AT PLANE [△27] REQUIRED ON FIRST ARTICLE.
ES
SE REQUIERE MUESTRA DE FLUJO DE GRANO EN EL PLANO [△27] EN EL PRIMER ARTÍCULO.

Basis: convention (aerospace). verify

FRG-06

Heat treatment

Checked
EN
HEAT TREAT PARTS PER AMS 2759/[1] TO [BHN 270–327]. (raw stock: AMS-H-6875)
ES
TRATAMIENTO TÉRMICO DE PIEZAS SEGÚN AMS 2759/[1] A [270–327 BHN].

Basis: AMS-H-6875 is still active (Rev C, 2020) and covers raw material; AMS 2759 covers parts. checked

FRG-07

Magnetic particle inspection

Verify values
EN
MAGNETIC PARTICLE INSPECT PER ASTM E1444. ACCEPTANCE PER [___].
ES
INSPECCIÓN POR PARTÍCULAS MAGNÉTICAS SEGÚN ASTM E1444. ACEPTACIÓN SEGÚN [___].

Watch for: locking an old revision ("E1444/05") in the note; cite without the year unless the contract demands it.

Basis: ASTM E1444. checked; current revision: verify

FRG-08

Serialization and marking

Verify values
EN
SERIALIZE. MARK PART NUMBER AND SERIAL NUMBER PER MIL-STD-130, [ENGRAVED], AT [△28].
ES
SERIALIZAR. MARCAR NÚMERO DE PARTE Y NÚMERO DE SERIE SEGÚN MIL-STD-130, [GRABADO], EN [△28].

Basis: MIL-STD-130 revision: verify

Sand and investment casting

CST-01

Alloy

Checked
EN
Aluminum: [A356.0-T6] PER ASTM B26. Gray iron: ASTM A48 CLASS [30]. Ductile iron: ASTM A536 [65-45-12]. Carbon steel: ASTM A27 GRADE [70-36].
ES
ALUMINIO [A356.0-T6] SEGÚN ASTM B26. (igual para los demás)

Basis: ASTM B26, A48, A536, A27. checked

CST-02

Casting tolerances

Checked
EN
GENERAL CASTING TOLERANCES: ISO 8062-3, DCTG [10]. (investment: DCTG [6])
ES
TOLERANCIAS GENERALES DE FUNDICIÓN: ISO 8062-3, DCTG [10].

Basis: ISO 8062-3:2023. checked; grades are examples.

CST-03

Radiographic quality

Checked
EN
RADIOGRAPH ZONES MARKED [△29] PER ASTM E1742. ACCEPTANCE PER [ASTM E155 (AL) / E446 (STEEL)], SEVERITY LEVEL [2].
ES
RADIOGRAFIAR LAS ZONAS MARCADAS [△29] SEGÚN ASTM E1742. ACEPTACIÓN SEGÚN [ASTM E155 (AL) / E446 (ACERO)], NIVEL [2].

Basis: ASTM E1742 (practice), E155 and E446 (reference radiographs). checked

CST-04

Weld repair

Verify values
EN
WELD REPAIR [NOT PERMITTED / PERMITTED WITH WRITTEN APPROVAL, REPAIR MAP REQUIRED].
ES
REPARACIÓN CON SOLDADURA [NO PERMITIDA / PERMITIDA CON APROBACIÓN ESCRITA, CON MAPA DE REPARACIONES].

Basis: convention. verify

CST-05

Datum targets

Checked
EN
Datum targets on as-cast surfaces, located with basic dimensions; no note needed beyond the targets themselves.
ES
Blancos de datum en superficies de fundición, ubicados con dimensiones básicas.

Use: every casting that gets machined: the first machining setup uses the targets.

Basis: Y14.5-2018 datum targets. checked

CST-06

Surface roughness as cast

Verify values
EN
AS-CAST SURFACES [250] µin Ra MAX.
ES
SUPERFICIES DE FUNDICIÓN [250] µin Ra MÁX.

Watch for: citing an unknown standard (one legacy note cites "AAA STD AA-C5-E18", which could not be found).

Basis: convention; values are examples. verify

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