Recent content by deaconp

Thanks Metengr, that is cool i was not losing my head then thinking thee was some weird science between the average value again may thanks Deaks

Thanks mali that will get are procurment team of my case

Hi, I have just been reviewing a material Cert, a requirement was asked for Charpy V Notch @ -32 degreec C. The critera asked for a min 24 Joules and Average of 34 Joules. The three figures I received for the three test where like 108,112,97? Is there a method for deriving you're min and...

HI wondering if anybody can help, I have components from the uk to manufactuer in the USA? Currently they are called to use 51 Ksi Yield to BS EN 10025 Grade matterial S355 J2 G3. Typically 50D Plate, problem being here in the USA I am having difficulty for vendors to quote this so I am looking...

Carburize- This material is indeed for oilfield service and is therefore H2 Service as well as being machined for pressureretaining components up to 10Ksi

my error sorry although it is stipulated as 0.15% - 0.035% Al content, this is for an ASTM A336, grade F-22 modified material. This is what I curently have specified anyway, it is possible that it may need revising, but the values are stipulated in a componany material specification?

Quick scream for help. I am looking at ordering billets of low alloy steel forgings, idealy I was looking for an aluminium content of between 0.15- 0.35%, I am curently being offered materials with contents below 0.1% what i am looking at is what is the relationship of Al in steel and I am...

HI, I am in the process of designing an end sub which has to interface with a 6 5/8 FH VAM EIS drill pipe, I believe this connection is interchangable with typical API FH connections? can anybody point me in the correct direction of where I may obtain deatails for both pin and box deatils of...

Hi, Currently working to eleveate a proble which has been occuring with some downhole tools. Some of the components have threaded holes and plugs set on there outside diameter, What I am looking for is an effective method of, protectiong these areas, but not permantly sealing them off as acces...

Can anybody tell me is it acheivable to obtain heat treated AISI 4140. lookin to acheive 130,000 yield with a hardness of 34 Rockwell C. The bar stock forged to shape with a 5.750" ID and a 8" OD. This is not Nace required so would an Rockwell C of 36 be acceptable? Cheers for any help available

Can anybody help?? Looking for information / supplies for material type S-135. Pipe Grade: S-135T Min Yield Strength: 135,000 Max Yield Strength (psi): 165,000 Min Tensile Strength (psi): 145,000 Impact Energy ft-lb @ 75°F: 59 min Hardness: 38 HRC max Cheers Deaks

Inconel 718 is Ok but if you are using it in oilfied you need to be careful the new stipulations in NACE are very stringent and call for a deltaphase testing. you could try using inconel 925, which is good with mercury and Nace complient. A good place to source is Special metals, who produce...

quark Cheers for the info, downloaded the convertor top notch, better than the Dinosaur program i am curently using. again cheers deaksp

Sheers folks for the info, I had seen some of the answers and done a Linear response and calculated appox 32.3 HRC, was just trying to ensure that there was no definative rule, but you folks have settled my mind cheers deakp

Hi, Having a slight problem in getting a conversion of 305 BHN to Rockwell C, I have been through the many tables specified (i.e Zues book etc) and have managed to obtain a conversion from 301 BHN to 32 Rc, all tables seem to give between 301 and 311 BHN is there a recognised method to obtain...