KH-CR25

Type of coating: Low hydrogen type
Weld metal is a chromium carbide structure with 25% Cr. It provides excellent hardness and abrasion resistance at high temperature due to higher chromium carbide content.

Catalog Packaging

▎Classification

AWS A5.13–
JIS Z3251DFCrA-600-S
EN 14700E Fe14
GB T984EDZCR-B-08

▎Applications and Features

  • Weld metal is a chromium carbide structure with 25% Cr.
  • It provides excellent hardness and abrasion resistance at high temperature due to higher chromium carbide content.
  • The weld metal has poor impact toughness and high crack
    susceptibility.
  • It is suitable for repairing canisters, sand-blast machines, crushers, and sieves.

Pump linings

▎Welding Position

焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢

▎Welding Instruction

  • Dry the electrodes at 300-350°C for 30-60 minutes before use.
  • Preheat temperature should be ≥ 250°C and PWHT should be 600°C.
  • The surfacing should be limited to 2-3 layers.

▎Applications

It is suitable for repairing canisters, sand-blast machines, crushers,
and sieves.

▎Typical Chemical Composition of Weld Metal (wt.%)

CSi
Mn
Cr
3.951.072.6525.25

▎Typical Hardness of Weld Metal

ConditionVicker’s hardness
(HV)		Rockwell’s hardness
(HRC)		Shore’s
hardness
(HS)
As-welded
Interpass temp. ≤100°C 		6605879
As-welded
Continuous build-up		6305677
Heat
treatment
Temperature (°C)		200300400500600700
Vicker’s hardness640460400300180100

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

Diameter x Length(mm) 3.2×3504.0×3505.0×350
Amp90-140140-190190-250

▎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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