Bend Testing of Very Low Ductility Steels

[Guest102023]

A long time ago a colleague ran a PQR for reformer material, IIRC it was some variation of HP-40. It wouldn't pass even a 15° bend, but I recall the Code has provisions for comparitive bend testing, where the extent of maximum bending sustained by the weld coupon is compared to that of the unwelded base metal.
Anybody been there and done that? I need to find chapter and verse for a client wanting to weld wear-resistant plate. I'm not completely certain it was the B&PV Code.
Thanks in advance.

"If you don't have time to do the job right the first time, when are you going to find time to repair it?"

 

[kingnero]

EN ISO codes allow for the former diameter (of the bend test jig) to be enlarged according to the elongation value.

Screenshot of the 9606-1 standard (Welder performance qualification of steel and stainless steels) attached.

---

http://be.linkedin.com/in/fusionpoint

 

[metengr]

Section IX provides for bend testing low ductility materials by reducing the tensile elongation by altering the bend radius.