Re: [MW:35037] I want to know the RT 10% acceptance criteria.

In general :

If 10% or 20% lot, one welding joint is rejected , then go for another 2 weld joint for RT in the same lot. If again fails comes from 2 weld joint , then entire lot to tested by RT

On Tue, May 21, 2024 at 10:43 AM Amol Betkar <amolbetkar90@gmail.com> wrote:

Dear Yasoob,
The statement appears to relate to a quality control or inspection procedure. Here's a more precise interpretation of the process:
First Test:
If one item fails out of a sample with a 10% failure rate, a secondary check (referred to as "Trecer" which might be a typo or specific jargon, possibly meant to be "Tracer") is performed with two additional items.
Second Test:
If either of the two additional items also fails, it indicates a problem, and the entire batch (or "full lot") must be inspected.
Here's a refined version of the process:
Initial Inspection:
If 10% of the items in the sample fail the initial inspection, perform a secondary inspection with two additional items.
Secondary Inspection:
If one or both of the two additional items fail this inspection, conduct a full inspection of the entire lot.
This process ensures that if an initial small sample indicates a potential quality issue, further scrutiny is applied to confirm the problem before deciding to inspect the entire batch, thus preventing defective items from proceeding further in the production or distribution process.

On Mon, 20 May 2024 at 22:59, Yasoob kham <yasoob.azeem@binquraya.com> wrote:
Dear Sir,

RT If one fails in 10% then there is a Trecer of two. And second time fails then check the full lot.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/2F7D605A-7708-48A1-9659-5C93BD77DF80%40binquraya.com.

--
Best regards,

Amol K.B
B.E(Mech), CSWIP 3.2.2, NACE CIP 1 & ASNT LII(4M)

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAADcG1rjF3u7wyfQTrdUPQgOOTTpiV1pNBJ%3Dun-nKRCGxRGE1Q%40mail.gmail.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAB%3DAs8mqCUwY8EV0_8o4Owv4b4JBZFq32mxvp5mitaH6e0F3uA%40mail.gmail.com.

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change. Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...

Materials & Welding

Search This Blog