F51 duplex is heat-treated in accordance with NORSOK M630 (MDS D44).
It was quenched in water.Transit time from furnace to quenching tank is within 60 seconds.
Water is circulated and monitoring of water in place, well below +40 deg.C.
Customer further request monitoring record of Halogen...
In general, standard minimum forging ratio is 3:1 for open-die forging method.
Forger actual performed base on ratio 5.5:1 on F51 forging of valve component(closure).
How does this forging ratio leads to the better material flow lines ?
How & what checks are performed to see whether the...
EDStainless,
Thank you.
What other alternative low alloy steel for dowel pin ?
AISI 4140 dowel pin and A105 CLOSURE. Both considered Dissimilar metals ? any possibility of Galvanic corrosion take place ?
EDStainless,
Thank you.
What other alternative low alloy steel for dowel pin ?
AISI 4140 dowel pin and A105 CLOSURE. Both considered Dissimilar metals ? any possibility of Galvanic corossion take place ?
Hi,
Valve component closure in A105, dowel pin material, can we use AISI 4140 type as altenative material to orginal A105 type. AISI 4140 low alloy steel high tensile-with yield strength almost double (485MPa) than A105.
Any concern due to Dissimilarity of material-AISI4140 dowel pin/ A105...
