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  1. wontweldcantweld

    EN 10025-6: S690QL hardness

    Hello all, I'm looking for some guidance regarding a welding qualification: I am looking to qualify EN 10025-6:2019 S690QL. The customer specification lists some quite demanding mechanical testing, though the one I'm worried about is the NACE hardness acceptance requirements, plus the...
  2. wontweldcantweld

    Repairing Welder Qualifications

    Hi all, I'm looking for guidance to whether a Welder Performance Qualification (WPQ) can be repaired? I've had a look through AWS D1.1 and ASME IX, and I can't see anywhere this is strictly prohibited. We have had a welder fail RT on a full penetration BW, due to a single enlarged gas pore...
  3. wontweldcantweld

    Fabrication / sheet metal work test

    Hi all, I'm looking at making up a mock plater / sheet metal work test piece for some of our students, as it's not something they really do as welders. Does anyone have any designs they can share? Square-to-rounds / duct work / pattern development etc. would be appreciated. Looking to...
  4. wontweldcantweld

    42CrMoV forgings - welding variables

    Hi all, As the title suggests I'm looking into welding 42CrMo4V forgings (approx. 930 MPa SMYS) for an offshore actuator. I've seen to repeatedly referred to as equivalent to AISI 4140 yet the SMYS seem wildly different! I'm struggling to find any information on this material, particularly...
  5. wontweldcantweld

    Query on ASME IX SMYS

    Hi DVWE, Apologies, this is for CRO only, with Inconel 625. The SMYS is that of the base material. For example, would a PQR which was CRO on 8630 75KSI material, be qualified to weld 80KSI material? Note that 8630 is unassigned, though seeing as its *technically* the same grade, would this...
  6. wontweldcantweld

    Query on ASME IX SMYS

    Hello all, I've reposted this from the materials and metallurgy forum as it's an ASME query. This is for CRO (Corrosion Resistant Overlay) i.e. cladding of 8630 80KSI components. Basically, I'm reviewing a welding procedure for a client, which they have welded two separate test pieces. It's...
  7. wontweldcantweld

    ASME IX - Can a lower SMYS cover a higher SYMS?

    Hello all, This is for CRO (Corrosion Resistant Overlay) i.e. cladding of 8630 80KSI components. Basically, I'm reviewing a welding procedure for a client, which they have welded two separate test pieces. It's the same material grade (8630, which I believe is unassigned under ASME) but one...
  8. wontweldcantweld

    PWHT technical resources (course / notes)

    Thanks weldstan, certainly looks like that could help! However, whilst at the very reasonable price of only £275.00, would you happen to know of any online or free resources? *Note I will still look into getting a copy, it just would be good to have a digital copy or notes I can present.
  9. wontweldcantweld

    PWHT technical resources (course / notes)

    Hello all, I'm just wondering if anyone has any useful resources or literature on PWHT they would be able to share? It's not for anything specific, rather to educate myself and some of the other Engineers I work with. I've got a pretty good understanding of PWHT and why it's undertaken but...
  10. wontweldcantweld

    Shear capacity of Bolts calculations

    Morning all, hokie66 & racookpe1978 I never mentioned shear stress in any of my calcs, however, this is exactly what I'm trying to determine - Not a value for the shear stress, but what actually is the relationship between the shear capacity and shear strength, as now I've been told of another...
  11. wontweldcantweld

    Shear capacity of Bolts calculations

    Hi there, I’m looking for help with some shear strength calcs for bolted joints as this isn’t my field of expertise; I have x 6 M16 BSEN ISO 3506 Class 70 Bolts, each with a shear capacity (Psb) of 48,700N By my working out, the Shear area (As) per bolt should be 2.0106 x 10 ^-4 m^2 And by...
  12. wontweldcantweld

    Superchilling/cooling castings and metals

    Just to let everyone know I passed the assignment on super cooling, and thanks to everyone for giving me advice how little or large! It seems its quite a large topic, but very little is known about it at the level I'm studying at. Cheers Maui, I've had a quick look at that book and it looks...
  13. wontweldcantweld

    Superchilling/cooling castings and metals

    Hi Everyone! First time I've posted here, but I'm struggling to find any information regarding the supercooling (also known as superchilling)of metals and castings, particularly the effect on the materials grain structure and how it affects it mechanical properties. I've tried looking looking...

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