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Welding drawing notes

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

12 copy-ready notes for welding and fabrication, 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.

WLD-01 Welding codeWLD-02 Weld symbolsWLD-03 Welder and procedure qualificationWLD-04 Filler metalWLD-05 Default weld sizeWLD-06 Weldment general tolerancesWLD-07 Machining after weldingWLD-08 Stress reliefWLD-09 Inspection (NDE)WLD-10 Spatter and protectionWLD-11 Fit-upWLD-12 Weld finish

WLD-01

Welding code

Verify values
EN
WELD PER AWS D1.1 (STEEL). Aluminum: AWS D1.2. Stainless: AWS D1.6. Sheet steel: AWS D1.3. Pressure piping: ASME B31.3.
ES
SOLDAR SEGÚN AWS D1.1 (ACERO).

Use: every weldment. Pick the code for the material and product.

Watch for: no code at all — then acceptance criteria are undefined.

Basis: AWS D1 series (D1.1:2025 is current). checked; other editions verify

WLD-02

Weld symbols

Checked
EN
WELD SYMBOLS PER AWS A2.4.
ES
SÍMBOLOS DE SOLDADURA SEGÚN AWS A2.4.

Use: every weldment. ISO drawings: ISO 2553 (arrow side / other side shown differently).

Basis: AWS A2.4; ISO 2553. checked

WLD-03

Welder and procedure qualification

Checked
EN
WELDERS AND WELDING PROCEDURES QUALIFIED PER [AWS D1.1 / ASME SECTION IX].
ES
SOLDADORES Y PROCEDIMIENTOS CALIFICADOS SEGÚN [AWS D1.1 / ASME SECCIÓN IX].

Use: structural and pressure work.

Basis: AWS D1.1; ASME BPVC Section IX. checked

WLD-04

Filler metal

Verify values
EN
FILLER METAL: [ER70S-6 / E7018] (carbon steel); [ER4043 / ER5356] (aluminum).
ES
MATERIAL DE APORTE: [ER70S-6 / E7018].

Use: when the filler matters for strength, color after anodize, or corrosion.

Watch for: ER4043 on parts that will be anodized (turns gray); 5356 is the usual choice there.

Basis: AWS A5 filler specifications. verify (choice is a design decision)

WLD-05

Default weld size

Verify values
EN
ALL WELDS [3/16] CONTINUOUS FILLET, ALL AROUND, UNLESS NOTED.
ES
TODAS LAS SOLDADURAS FILETE CONTINUO DE [3/16], TODO ALREDEDOR, A MENOS QUE SE INDIQUE.

Use: simple weldments where most joints are the same.

Watch for: using this note on a weldment that needs specific weld sizes per joint; size must come from design.

Basis: convention. verify

WLD-06

Weldment general tolerances

Checked
EN
GENERAL TOLERANCES FOR WELDED CONSTRUCTION: ISO 13920-[B][F].
ES
TOLERANCIAS GENERALES PARA CONSTRUCCIONES SOLDADAS: ISO 13920-[B][F].

Use: weldments; lengths and angles class A–D, straightness/flatness class E–H.

Watch for: machining tolerances (±.005) on as-welded dimensions.

Basis: ISO 13920:2023. checked

WLD-07

Machining after welding

Verify values
EN
MACHINE SURFACES MARKED [△13] AFTER WELDING.
ES
MAQUINAR LAS SUPERFICIES MARCADAS [△13] DESPUÉS DE SOLDAR.

Use: weldments with bores or mounting faces that must stay true. Add machining stock to the weld detail.

Basis: convention. verify

WLD-08

Stress relief

Verify values
EN
STRESS RELIEVE AFTER WELDING PER [SPEC / CYCLE: ___ °F FOR ___ HR PER INCH OF THICKNESS].
ES
RELEVAR ESFUERZOS DESPUÉS DE SOLDAR SEGÚN [ESPECIFICACIÓN / CICLO].

Use: heavy or machined weldments that must stay stable.

Basis: cycle comes from the code or design engineer. verify

WLD-09

Inspection (NDE)

Checked
EN
ALL WELDS 100% VISUAL. WELDS MARKED [△14]: [MAGNETIC PARTICLE PER ASTM E709 / LIQUID PENETRANT PER ASTM E165]. ACCEPTANCE PER [AWS D1.1].
ES
TODAS LAS SOLDADURAS 100% INSPECCIÓN VISUAL. SOLDADURAS MARCADAS [△14]: [PARTÍCULAS MAGNÉTICAS SEGÚN ASTM E709 / LÍQUIDOS PENETRANTES SEGÚN ASTM E165]. ACEPTACIÓN SEGÚN [AWS D1.1].

Use: structural, pressure, lifting and fatigue-loaded weldments.

Watch for: a test method with no acceptance standard.

Basis: ASTM E709, E165; acceptance from the welding code. checked

WLD-10

Spatter and protection

Verify values
EN
REMOVE WELD SPATTER, SLAG AND DEBRIS. PROTECT THREADS AND MACHINED SURFACES FROM SPATTER.
ES
RETIRAR SALPICADURA, ESCORIA Y RESIDUOS. PROTEGER ROSCAS Y SUPERFICIES MAQUINADAS DE LA SALPICADURA.

Use: every weldment.

Basis: convention. verify

WLD-11

Fit-up

Verify values
EN
ROOT GAP AND FIT-UP PER WELDING PROCEDURE; MAXIMUM GAP ON FILLET WELDS [1/16].
ES
ABERTURA DE RAÍZ Y AJUSTE SEGÚN EL PROCEDIMIENTO; ABERTURA MÁXIMA EN FILETES [1/16].

Use: fabricated assemblies.

Basis: fit-up limits are in the welding code; value is an example. verify

WLD-12

Weld finish

Checked
EN
GRIND WELDS FLUSH ON SURFACES MARKED [△15].
ES
ESMERILAR AL RAS LAS SOLDADURAS EN LAS SUPERFICIES MARCADAS [△15].

Use: cosmetic or mating surfaces. Use the weld symbol's contour and finish symbols where possible.

Basis: AWS A2.4 contour symbols. checked

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