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Cold Rolled Steel for Welded Tube

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Cold Rolled Steel for Welded Tube Price, please free to contact us.

Cold Rolled Steel for Welded Tube

Grade and Application

LYS’s cold rolled steel for welded tube has two varieties (ultra-low carbon steel and low carbon steel). It has stable chemistry, good drawing property and thickness accuracy, which can be used for single and double welded tubes and widely applied to condenser pipe of refrigerator and oil tube of automobiles.

GradeApplication
LGHG1,LGHG2Used for welded tube.

Product Dimension of Cold Rolled Steel for Welded Tube

nominal thickness:0.4~1.2mm; nominal width:900~1580mm;

Chemistry of Cold Rolled Steel for Welded Tube

GradesChemistry%
CSiMnPSAlt
LGHG1≤0.004≤0.03≤0.25≤0.015≤0.0150.02~0.05
LGHG2≤0.07≤0.05≤0.30≤0.03≤0.030.02~0.05

Physical Property

GradeYield strength MpaEensile strength MPaElongation after fracture A50% Not less than
LGHG1130~180280~325≥40
LGHG2160~240280~350≥38
Cold Rolled Steel for welded Tube
Cold Rolled Steel for welded Tube

Surface Quality

GradingCodeFeatures
High-grade surface finishingFB(O3) A few defects without affecting formability and coating adhesion are allowable on surface, eg. Slight scratches, identation, pitted spot, roll mark and oxide color.
 Higher-grade   surface finishingFC(O4) None of any visible obvious defect on the better one of two surfaces, the other side has to reach FB requirement at least.

Supply scope/Dimension range

 Thickness (mm)Width (mm)
900~ 1000≥1000~ 1100≥1100~ 1200≥1200~ 1300≥1300~ 1400≥1400~ 1500≥1500~ 1550≥1550~ 1585
0.40-0.50 1 22 2 2 2 33
>0.50-0.60 1 2 2 2 2 2 2 3
>0.60-1.2 1 2 2 2 2 23 2 1

Remark:

A.The specification of “3” in the above table: stands for design capacity of production line, contract review is required if order receiving.

B.The specification of “1” in the above table: stands for current steel grades which could be produced, but further exchanges and confirmation of order receiving is required for the steel grades without mass production to decide whether contract review is necessary.

C.The specification of “2” in the above table: stands for current steel grades which have been produced previously, contract review is unnecessary with order receiving, but contract review is required if special requirements from customer.

D.Economic quantity is reachable by mix production of required steel grades with specifications (the number of heats by continuous casting sequence), contract review is necessary if the economic quantity is not reachable.

Dimension Accuracy

Products Classification and code
Edge ConditionThickness accuracyWidth accuracyFlatness accuracy
Standard High-gradeStandard High-gradeStandardHigh-grade
Strips ECPT.APT.BPW.APW.B
SheetsECPT.APT.BPW.APW.BPF.APF.B
 Slitted strips ECPT.APT.BPW.A
Ss Mill, Stainless Plant, Stainless Mill

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