| Product name：KMS-502 |
| Classification：A5.28 / ER80S-B6 |
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- It is suitable for welding Cr-Mo heat resistant steel.
- Weld metal contains 5%Cr-0.5%Mo.
- It is ideal for welding in steel for petro-chemical plants such as ASTM A387Gr.5 and JIS SCMV6.
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Welding Instruction
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(1) Clean up the contaminations on the steel before welding.
(2) It provides high hardenability with air cooling. Preheat and PWHT are required.
(3) Preheat and interpass temperature are: 160~190°C, PWHT: 840~870°C.
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TypicalChemical Composition of Weld Metal (wt %)
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C
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Si
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Mn
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P
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S
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Cr
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Mo
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0.075
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0.32
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0.55
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0.015
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0.014
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5.50
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0.55
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TypicalMechanical Properties of Weld Metal (PWHT:850°Cx2Hr)
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Tensile Strength
N/mm2(kgf/mm2)
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Yield Strength
N/mm2(kgf/mm2)
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Elongation
%
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Charpy V-Notch
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°C
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J (kgf -m)
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630(64.2)
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480(49.0)
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25
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0
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—
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-120
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—
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Size and SuggestedOperating Range (DC+)
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Diameter (mm)
Parameters
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1.0
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1.2
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1.4
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1.6
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Short-Circuit Transfer
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A
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80~160
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100~210
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—
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—
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V
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16~22
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17~22
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—
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—
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Spray Transfer
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A
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180~280
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200~300
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210~320
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220~330
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V
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24~30
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24~30
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24~32
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24~32
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No.8, Luke 3rd Rd., Luzhu Dist., Kaohsiung City 821, Taiwan (R.O.C.) TEL:886-7-6955155 FAX:886-7-6955166
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