Welders Qualification Filletwelds.

[Hans van Es]

Goodmorning.

To qualify a welder who's weld a filletweld, you have to take 1 macroetch and 1 fracture test.

The question is : When it is not possible to break the fracture test or when the fracture test doesn't breaks, what is the possibility (according ASME IX) to qualify the welder.?

[J Prinsen]

According to ASME IX:

 

 

QW-303 LIMITS OF QUALIFIED POSITIONS AND DIAMETERS (SEE QW-461)

QW-303.1 Groove Welds — General. Welders and welding operators who pass the required tests for groove welds in the test positions of Table QW-461.9 shall be qua­lified for the positions of groove welds and fillet welds shown in Table QW-461.9. In addition, welders and weld­ing operators who pass the required tests for groove welds shall also be qualified to make fillet welds in all thicknesses and pipe diameters of any size within the lim­its of the welding variables of QW-350 or QW-360, as applicable.

QW-303.2 Fillet Welds — General. Welders and welding operators who pass the required tests for fillet welds in the test positions of Table QW-461.9 shall be qua­lified for the positions of fillet welds shown in Table QW-461.9. Welders and welding operators who pass the tests for fillet welds shall be qualified to make fillet welds only in the thicknesses of material, sizes of fillet welds, and diameters of pipe and tube 2⁷/8 in. (73 mm) O.D. and over, as shown in Table QW-452.5, within the applicable essential variables. Welders and welding opera­tors who make fillet welds on pipe or tube less than 2⁷/8 in. (73 mm) O.D. must pass the pipe fillet weld test per Table QW-452.4 or the required mechanical tests in

QW-304 and QW-305 as applicable.

 

Regards

 

Jurgen Prinsen IWE

---

Van: "Hans van Es" <hansv...@gmail.com>
Aan: "Materials & Welding" <material...@googlegroups.com>
Verzonden: Woensdag 28 oktober 2015 09:03:14
Onderwerp: [MW:23815] Welders Qualification Filletwelds.

Goodmorning.

To qualify a welder who's weld a filletweld, you have to take 1 macroetch and 1 fracture test.

The question is : When it is not possible to break the fracture test or when the fracture test doesn't breaks, what is the possibility (according ASME IX) to qualify the welder.?

--
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To post to this group, send email to material...@googlegroups.com.
Visit this group at http://groups.google.com/group/materials-welding.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/c7fe307b-dd42-4c9c-adb9-415eb11f1300%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Jim Price]

 

Good Morning,

Instead of the normal brake test I have used production mockups to qualify Procedures and Welders.

 

Hope this answers your question.

 

Best Regards,

 

 

QW-181.1.1 Production Assembly Mockups. Production

assembly mockups may be used in lieu of

QW-181.1. The mockups for plate-to-shape shall be cut

transversely to provide five approximately equal test specimens

not to exceed approximately 2 in. (50 mm) in length.

For pipe-to-shape mockups, the mockup shall be cut transversely

to provide four approximately equal test specimens.

For small mockups, multiple mockups may be required to

obtain the required number of test specimens. The test

specimens shall be macro-examined to the requirements

of QW-183.

 

QW-181.2 Performance. The dimensions and the preparation

of the fillet-weld test coupon for performance qualification

shall conform to the requirements in figure QW-462.4(b)

or figure QW-462.4(c). The test coupon for

plate-to-plate shall be cut transversely to provide a center

section approximately 4 in. (100 mm) long and two end

sections, each approximately 1 in. (25 mm) long. For pipeto-

plate or pipe-to-pipe, the test coupon shall be cut to

provide two quarter sections test specimens opposite to

each other. One of the test specimens shall be fracture

tested in accordance with QW-182 and the other macroexamined

to the requirements of QW-184. When qualifying

pipe-to-plate or pipe-to-pipe in the 5F position, the test

specimens shall be removed as indicated in figure

QW-463.2(h).

 

QW-181.2.1 Production Assembly Mockups. Production

assembly mockups may be used in lieu of the fillet weld

test coupon requirements of QW-181.2.

 

Jim Price | Welding Engineer, CWI

Direct:  320.7463439 | Fax: 417-862-5564

jimp...@polarcorp.com

--

[Astley Scott]

The Fracture test piece may not break. You have to ensure you load it gradually as s[ecified until it either breaks or folds over onto itself. I the piece does not break and you are not able to see any of the defects specified in QW-182 then the piece is acceptable. See below:

QW-182 FRACTURE TESTS

The stem of the 4 in. (100 mm) performance specimen

center section in Figure QW-462.4(b) or the stem of the

quarter section in Figure QW-462.4(c), as applicable, shall

be loaded laterally in such a way that the root of the weld

is in tension. The load shall be steadily increased until the

specimen fractures or bends flat upon itself.

If the specimen fractures, the fractured surface shall

show no evidence of cracks or incomplete root fusion,

and the sum of the lengths of inclusions and porosity visible

on the fractured surface shall not exceed 3/8 in.

(10 mm) in Figure QW-462.4(b) or 10% of the quarter section

in Figure QW-462.4(c).

Astley D. Scott

---

Date: Wed, 28 Oct 2015 01:03:14 -0700
From: hansv...@gmail.com
To: material...@googlegroups.com

Subject: [MW:23815] Welders Qualification Filletwelds.

Goodmorning.

To qualify a welder who's weld a filletweld, you have to take 1 macroetch and 1 fracture test.

The question is : When it is not possible to break the fracture test or when the fracture test doesn't breaks, what is the possibility (according ASME IX) to qualify the welder.?