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TORICH GB/T24187 BHG1 Precision Single Welded Steel Tubes In Condenser

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Name: TORICH GBT24187 BHG1 Precision Single Welded Steel Tubes In Condenser
Brand: TORICH
Price: 800 USD

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Brand Name :	TORICH
Model Number :	GB/T24187
Certification :	ISO 9001,ISO 14001,TS 16949
Price :	USD 800-1200 Tons
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :	50000Tons/Year
Delivery Time :	15-35 Work Days

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Table1 The type, state and code of the steel tube surface

Type	State	Code
Bright Surface	No coating on the inner and outer surface of steel pipe	SL
Copper plated surface	Copper plating on the outer surface of steel tube	Cu
Galvanized surface	Galvanized or zinc alloy on the outer surface of steel pipe	Zn
Double-sided copper plating surface	The inner and outer surfaces of the steel pipe are plated with copper	Cu/Cu
External galvanized inner copper plating surface	Galvanized or zinc alloy on the outer surface of steel pipe, copper plating on the inner surface	Zn/Cu
a. Use electroplating, electroless or hot dip plating. b. Manufacture of steel strip with double-sided copper plating, and the quality of the coating at the weld line should be negotiated by both suppliers and suppliers. c. Manufacture of steel strip with double-sided copper plating.

TABLE 2 Chemical Composition Of Steel Strip (Mass Fraction)%

Category	C	Si	Mn	P	S
Cold rolled low carbon steel strip	≤0.08	≤0.03	≤0.30	≤0.030	≤0.030
Cold rolled ultra low carbon steel strip	≤0.008	≤0.03	≤0.25	≤0.020	≤0.030

TABLE 3 Mechanical Properties Of Cold Rolled Low Carbon Steel Strip

Thickness /mm	Tensile Strength	Yield Strength	Elongation A/%
0.25~<0.35	≥270		≥32
0.35~<0.50			≥34
≥0.50			≥36
a Replace with when the yield phenomenon is not obvious. b Sample type of sample number D14 in GB/T 228-2002.

TABLE 4 Mechanical Properties Of Cold Rolled Ultra-low Carbon Steel Strip

Thickness /mm	Tensile Strength	Yield Strength	Elongation A/%
≤0.50	≥280	130~250	≥38
>0.50	≥280	130~250	≥40
a Replace with when the yield phenomenon is not obvious. b Sample type of sample number P14 in GB/T 228-2002.

TABLE 5 Mechanical properties of steel pipe

Category	Tensile Strength	Yield Strength	Elongation A/%
Ordinary steel pipe(MA)	≥270	≥180	≥14
Soft steel tube(MB)	≥230	150~220	≥35
a Replace with when the yield phenomenon is not obvious. b Sample type of sample number S7 in GB/T 228-2002.

TORICH GB/T24187 BHG1 Precision Single Welded Steel Tubes In Condenser

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welding steel tubing

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