Galvanized Square Tube Pipe Structure Building Tube for Construction/House Decoratioin Square Pipe Factory Low Price Tube

• Warranty: Quality Reliable/Available
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Model NO.: A36 Q235 Q345 Q275 Q255 1020 1045 St37 St44 St52 S
• Section Shape: Round
• Transport Package: 20FT/40FT/Bulk
• Specification: 1-10000tons
• Trademark: zhongneng ganglian steel
• Origin: China
• HS Code: 7610900000
• Production Capacity: 80000

Product Description

 

Type		carbon steel pipe / tube
Materials		API 5L /A53 /A106 GRADE B and other material which client inquired
Size	Outer Diameter	Seamless:17-914mm 3/8"-36"
	Wall Thickness	SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80
		SCH100 SCH120 SCH140 SCH160 XXS
	Length	Single random length/Double random length
		5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request
Ends		Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
Surface Treatment		Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating
Technical Methods		Hot-rolled/Cold-drawn/Hot-expanded
Testing Methods		Pressure test,Flaw detection,Eddy current testing, Hydro static testing or Ultrasonic examination and also with chemical and physical property inspection
Packaging		Small pipes in bundles with strong steel strips,large pieces in loose; Covered with plastic woven bags; Wooden cases; Suitable for lifting operation; Loaded in 20ft 40ft or 45ft container or in bulk; Also according to customer's requests
Origin		China
Application		Conveying oil gas and water
Third Party Inspection		SGS BV MTC
Trade Terms		FOB CIF CFR
Payment Terms		FOB 30%T/T, 70% before shipment
		CIF 30% pre-payment and the balance to be paid before making shipment or
		Irrevocable 100% L/C at sight
MOQ		10 tons
Supply Capacity		5000 T/M
Delivery Time		Usually within 10-45 days after receipt of advance payment

Product Description

 

 

Our Advantages

 

Chemical compositions of casing pipe

Standard	Grade	Chemical compositions(%)
API SPEC 5CT	J55	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
	K55	0.34~0.39	0.20~0.35	1.25~1.50	≤0.020	≤0.015	≤0.15	≤0.20	≤0.20	/	/
	N80	0.34~0.38	0.20~0.35	1.45~1.70	≤0.020	≤0.015	≤0.15	/	/	/	0.11~0.16
	Q125	≤0.35	-------------	≤1.35	≤0.020	≤0.010	≤1.50	≤0.20	≤0.20	/	/
	P110	0.26~0.395	0.17~0.37	0.40~0.70	≤0.020	≤0.010	0.80~1.10	≤0.20	≤0.20	0.15~0.25	≤0.08

Mechanical properties of casing pipe

Grade	Type	Total elongation  under load  (%)	Yield strength  (min)Mpa	Yield strength  (max)Mpa	Tensile strength  min Mpa	Hardness  Max (HRC)	Hardness  Max (HBW)
J55	-	0.5	379	552	517	-	-
K55	-	0.5	379	552	655	-	-
N80	1	0.5	552	758	689	-	-
N80	Q	0.5	552	758	689	-	-
L80	1	0.5	552	655	655	23	241
L80	9Cr	0.5	552	655	655	23	241
L80	13Cr	0.5	552	655	655	23	241
C90	-	0.5	621	724	689	25.4	255
C95	-	0.5	655	758	724	-	-
T95	-	0.5	655	758	724	25.4	255
P110	-	0.6	758	965	862	-	-
Q125	All	0.65	862	1034	931	-	-

Casing Pipe Manufacturing Process:

Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening → pipe cutting → inspection

1. An annular heating furnace is required for ingot heating;
2. Punching and reheating with hydraulic press;
3. The oil casing plant uses a two-roller guide plate extension machine for extension;
4. Re-use a disc heating furnace for periodic rolling, and use a non-entry furnace for reheating, cooling, straightening, pipe cutting, and inspection.