Recent content by duongwe

Dear Gents, WPS has been qualified ROOT/HOT/FILL/CAP = GTAW/GTAW/FCAW/FCAW. Now production the joint could be welded GTAW/FCAW/GTAW/FCAW or GTAW/GTAW/FCAW/GTAW? Thanks you.

Dear Gent, I am currently encountering an issue that requires a fillet welding between two plates, one being 25mm thickness JIS G4051 S45C and the other 35mm thickness ASTM A572 Gr.50. I have chosen welding consumables with a diameter of Ф3.2mm AWS A5.5 E9016-G, and intend to maintain preheat...

Dear Gent, I am currently encountering an issue that requires a fillet welding between two plates, one being 25mm thickness JIS G4051 S45C and the other 35mm thickness ASTM A572 Gr.50. I have chosen welding consumables with a diameter of Ф3.2mm AWS A5.5 E9016-G, and intend to maintain preheat...

I will be qualifying the Corrosion-Resistant Overlay on base metal A106 Grade B, with dimensions of 8"x8.18mm and a length of 150mm. The cladding will be performed using TIG ERNiCrMo-3 with internal 02 layers (around 5mm). To comply with table QW-453, I need to determine the range of thickness...

I am constructor company inspector and ASME IX or AWS D1.1 or also API 1104 was applicated.

Dear all, I have a problem about welder. when i qualify welder so do i need third party for witnessing and suppply certificate? my think, there are constructor and client is enough.

nobody can help me??

Eck, you can see Table 4.12 for essential available whatever you need to care.

dear all, i see AWS A5.1 there are E7016-1 and E7018-1 and E7018M. i don't understand "-1" and "M" here what doest is it? Please explant for me.

I have read some book i see TIG is usually best demanding properties. Why that?

dear all, i have approved WPS for groove of Carbon Steel comply with ASME IX code ( max. 11mm thickness). so now can i weld with double bevel with 18 mm of thickness? because of with single bevel joint i can weld two side and with each side i have imagined as single bevel of 9mm thickness. (mid...

there are two heat affected zone (HZA) are The HAZ of the cap and The HAZ of the root. which is better?

Dear all, i have a question which is not concerned to this topic, in the weld join including many locations as base metal, HZA, weld metal, please tell me know which location is best hardness?

Dear all, There is a question about to AMSE IX to concern Welder Qualification as below: I had WPS which was build and complied with ASME IX 2010 for welding duplex steel (S31803 of base metal and ER2209 of consumable). there are two problem i need to clarify: 1) Refer to QW-423.1: "Base metal...

Please mention me where in ASME IIA (ASME II Part A Ferrous Material Specifications) is no hardness requirement. Tks so much