Re: [MW:35793] FILLET WELD SIZE

• Joint Type: T-joint

• Plates: 75 mm and 50 mm thick plates

• Weld Type: Fillet weld on both sides (assumption unless stated otherwise)

• Loading: Static or dynamic? AWS D1.1 differs for each.

You haven't specified loading type, so I'll assume static loading (common for most structural applications unless otherwise stated).

Minimum Fillet Weld Size per AWS D1.1 – Table 5.8

This table gives minimum fillet weld sizes based on thicker part in the joint:

Thicker Part (mm)	Minimum Weld Size (mm)
Over 38 to 50	8 mm
Over 50 to 63	10 mm
Over 63 to 75	11 mm
Over 75 to 100	12 mm

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Saleem manhappulath

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From iPhone xs

On Mon, 1 Sep 2025 at 12:58 PM Elavarasan Mech <elavarasan1861994@gmail.com> wrote:

Dear all  

              Plate welding 75 mm to 50 mm T joint how to calculate minimum fillet  weld size as per AWS D1.1 8 mm minimum 

8 mm is adequate please guide me .how to calculate fillet weld size any other standard please share the details 

Regards 

ELAVARASAN 

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