I have a forging cylinder block from a nonstandard PH/ martensitic grade. PMI results show 15Cr-5Ni-1Mo-0.8Mn-0.2V with 35-39 HRC. I plan to do the spark test or take out a core sample to decipher whether this is a PH SS or fully martensite. The bores in the block are washed out due to sand...
Hi All,
We faced a problem with a Chinese foundry on a precision casting: They poured the same part from CD4MCuN with no problem before but now they have this sand inclusion problem with A216 WCB (as shown attached)! I am wondering if any body has experienced this kind of defect and know the...
Hi folks,
I am writing a spec for purchasing A532 Class III high Cr white cast iron as the A532 is very general and I want to restrict the hardness and ITP requirements. What specific requirements you would put in the spec for this material? I know the general ones for casting but looking if...
Hi All,
We have a cast carbon steel casing which has been boronized and needs weld repair at the edges which were not boronized (at least supposed to). With SMAW 7018 we had some spider cracks on the welds. Has any body had any experience with weld repair boronized casting? Whats your thoughts...
Hi folks,
I need to form, machine and weld A182 F6a Class 1 and I am wondering which HT would have better manufacturability (Forming, Welding, PWHT , Machining, etc.):
annealed, normalized and tempered, or tempered (as identified in A182)?
This part will be welded to 410 QT steel.
Appreciate...
Hi folks,
We manufactured penstock pipes made of A656-12 Gr 60 Type 7. They have flaring (by mechanical deformation) at the ends for assembly and been delivered to the customer on spec but after a while the very tip (bell)part of the penstock was sinked back in and went out of tolerance (shrunk...
