KS-505

Type of coating: Low hydrogen type
It is ideal for welding high pressure/temperature equipment steel, such as ASTM A219-T9 and A385-P9

▎Classification

AWS A 5.5E8016-B8
JIS Z3223E5518-9C1M
EN 3580-AE CrMo9 B
GB T 5118E5518-G

▎Applications and Features

  • It is suitable for welding Cr-Mo steel.
  • Weld metal contains 9%Cr-1%Mo.
  • It is ideal for welding high pressure/temperature equipment steel, such as ASTM A219-T9 and A385-P9

▎Welding Instruction

  1. Clean up the contaminations on the steel.
  2. Dry the electrodes at 350~400°C for 60 minutes before welding.
  3. Keep arc as short as possible. Take the back step method to prevent porosity at arc start and re-start. (Please refer to Appendix A)
  4. Preheat and interpass temperature: 205~260°C,PWHT:725~755°C.

▎Application

It is ideal for welding high pressure/temperature equipment steel, such as ASTM A219-T9 and A385-P9

▎Typical Chemical Composition of Weld Metal (wt%)

CSi
Mn
PSCrMo
0.058 0.240.430.0120.0098.550.90

▎Typical Mechanical Properties of Weld Metal

PWHTTensile Strength
N/mm2
(kgf/mm2)
Yield Strength
N/mm2
(kgf/mm2)
Elongation
%
745℃
1小時
630(64.2) 510(52.0) 24

▎ Size and Suggested Operating Range (AC or DC±)

Diameter (mm) x
Length(mm)
3.2×350 4.0×4005.0×400
AmpF90-140140-190180-240
AmpV-up/OH80-120120-160

▎Certification