[MW:13597] use ER316L to weld A312 TP 321

Gents,

I need your valuable advice on following.

 

We have some joints in for Flare package ,

 

Can we use ER316L filler wire to weld

1-      butt welded joints A312 TP 321

2-      Butt welded Joints A403 WP 321

 

Separatly ,

 

We have  supporting PQR USING ER316L  welded material  A240 316L , can this PQR suppot welding

1-      butt welded joints A312 TP 321

2-      Butt welded Joints A403 WP 321

 

Waitting your reply ASAP

 

Thanks

Mohamed