KL-918B3

Type of coating: Iron powder low hydrogen type
KL-918B3 is suitable for welding Cr-Mo alloy steel.

Catalog Packaging

▎Classification

AWS A 5.5E9018-B3
JIS Z3223 E6218-2C1M
EN 3580-AE CrMo2 B
GB T 5118E6018-B3

▎Applications and Features

  • KL-918B3 is suitable for welding Cr-Mo alloy steel。
  • It provides high deposition rate and good weldability。
  • Weld metal contains 2.25%Cr-1%Mo，such as ASTM A387Gr.22 and JIS SCMV4. 。
  • It is ideal for welding high pressure steel pipes, heat exchanger steel pipes of boilers and steels for petro-chemical plants。

▎Welding Position

焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
銲接姿勢
銲接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢

▎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

KL-916B3 is suitable for welding Cr-Mo alloy steel。

▎Typical Chemical Composition of Weld Metal (wt %)

CSi
Mn
PSCrMo
0.080.70.690.0130.0092.321.07

▎Typical Mechanical Properties of Weld Metal

PWHTTensile Strength
N/mm2
(kgf/mm2)		Yield Strength
N/mm2
(kgf/mm2)		Elongation
%
690℃
1Hr		670(68.3)590(60.2) 24

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

Diameter (mm) x
Length(mm) 		3.2×3504.0×4005.0×400
AmpF90-140140-190180-240
AmpV-up/OH80-120120-160–

▎Certification

JISZ3323_TCTW08007

KUANG TAI METAL INDUSTRIAL CO., LTD.

廣泰金屬工業股份有限公司

No.20, Gongye Rd., Erzhen, Guantian Dist.
Tainan City 72042, Taiwan
TEL：886-6-6987615  FAX：886-6-6987315

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