KL-816B2

Type of coating: Low hydrogen type
KL-816B2 is suitable for welding Cr-Mo alloy steel.

▎Classification

AWS A 5.5E8016-B2
JIS Z3223
E5516-1CM
EN 3580-AE CrMo1 B
GB T5118
E5516-B2

▎Applications and Features

  • KL-816B2 is suitable for welding Cr-Mo alloy steel.
  • Weld metal contains 1.25%Cr-0.5%Mo.
  •  It provides great creep resistance at 450°C.
  •  It is ideal for welding high pressure steel pipes, heat exchanger steel pipes of boilers, rolled, cast
    and forged steel。

▎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: 160~190°C, PWHT: 675~705°C.

▎ Application

It is ideal for welding high pressure steel pipes, heat exchanger steel pipes of boilers, rolled, cast and forged steel。

▎Typical Chemical Composition of Weld Metal (wt%)

CSi
Mn
PSCrMo
0.080.460.640.0150.0101.280.53

▎Typical Mechanical Properties of Weld Metal

PWHTTensile Strength
N/mm²
Yield Strength
N/mm²
Elongation
%
690℃
1Hr
63054028

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

Diameter (mm) x Length(mm)3.2×3504.0×4005.0×400
Amp90-140140-190180-240
Amp80-120120-160

▎Certification