A36 Carbon Tube Machinery Industry Random/Fixed Length S355/X42/X46/X60 ERW Welded Steel Pipe

• After-sales Service: 24-Hour Online After-Sales Service
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Polished
• 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.: Carbon Steel Pipe
• Section Shape: Round
• Thickness: 0.5-20mm
• Outer Diameter: 1 - 200 mm
• Tolerance: 1%
• Special Pipe: API Pipe, Other, EMT Pipe, Thick Wall Pipe
• Transport Package: Standard Export Packing
• Specification: Customized
• Trademark: baogang
• Origin: Shandong
• HS Code: 7304191000
• Production Capacity: 5000+ Tons/Month

Product Description

Standard of carbon seamless steel pipe
ASTM A53 Gr.B	Black and hot-dipped zinc-coated steel pipes welded and seamless
ASTM A106 Gr.B	Seamless carbon steel for high temperature service
ASTM SA179	Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes
ASTM SA192	Seamless carbon steel boiler tubes for high pressure
ASTM SA210	Seamless Medium-carbon boiler and superheater tubes
ASTM A213	Seamless alloy-steel boiler, superheater, and heat-exchanger tubes
ASTM A333 GR.6	seamless and welded carbon and alloy steel pipe intended for use at low temperatures.
ASTM A335 P9,P11,T22,T91	Seamless ferritic alloy-steel pipe for high-temperature service
ASTM A336	Alloy steel forgings for pressure and high-temperature parts
ASTM SA519 4140/4130	Seamless carbon for mechanical tubing
API Spec 5CT J55/K55/N80/L80/P110/K55	Seamless steel pipe for casing
API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70	Seamless steel pipe for line pipe
DIN 17175	Seamless steel tube for elevated temperture
DN2391	Cold drawn seamless prevision pipe
DIN 1629	Seamless circular unalloyed steel tubes subject to special requirements

Chemical components & mechanical properties
Standard	Grade	Chemical Components (%)					Mechanical Properties
ASTM A53		C	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)
	A	≤0.25	-	≤0.95	≤0.05	≤0.06	≥330	≥205
	B	≤0.30	-	≤1.2	≤0.05	≤0.06	≥415	≥240
ASTM A106	A	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≥415	≥240
	B	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≥485	≥275
ASTM SA179	A179	0.06-0.18	-	0.27-0.63	≤0.035	≤0.035	≥325	≥180
ASTM SA192	A192	0.06-0.18	≤0.25	0.27-0.63	≤0.035	≤0.035	≥325	≥180
API 5L PSL1	A	0.22	-	0.9	0.03	0.03	≥331	≥207
	B	0.28	-	1.2	0.03	0.03	≥414	≥241
	X42	0.28	-	1.3	0.03	0.03	≥414	≥290
	X46	0.28	-	1.4	0.03	0.03	≥434	≥317
	X52	0.28	-	1.4	0.03	0.03	≥455	≥359
	X56	0.28	-	1.4	0.03	0.03	≥490	≥386
	X60	0.28	-	1.4	0.03	0.03	≥517	≥448
	X65	0.28	-	1.4	0.03	0.03	≥531	≥448
	X70	0.28	-	1.4	0.03	0.03	≥565	≥483
API 5L PSL2	B	0.24	-	1.2	0.025	0.015	≥414	≥241
	X42	0.24	-	1.3	0.025	0.015	≥414	≥290
	X46	0.24	-	1.4	0.025	0.015	≥434	≥317
	X52	0.24	-	1.4	0.025	0.015	≥455	≥359
	X56	0.24	-	1.4	0.025	0.015	≥490	≥386
	X60	0.24	-	1.4	0.025	0.015	≥517	≥414
	X65	0.24	-	1.4	0.025	0.015	≥531	≥448
	X70	0.24	-	1.4	0.025	0.015	≥565	≥483
	X80	0.24	-	1.4	0.025	0.015	≥621	≥552

Classfication of carbon seamless steel pipe
Types	Application
Structure Purposes	General structure and mechanical
Liquid Services	Petroleum, gas and other fluids conveying
Low and Medium Pressure Boiler Tube	Steam and boiler manufacturing
Hydraulic Pillar Service	Hydraulic support
Auto Semi-shaft Casing	Auto sem-shaft casing
Line Pipe	Oil and gas conveying
Tubing and Casing	Oil and gas conveying
Drill Pipes	Well drilling
Geological Drilling Pipe	Geological drilling
Furnace tubes, heat exchangers tubes	Furnace tubes, heat exchangers

Tolerances of carbon seamless steel pipe
Pipe types	Pipe sizes(mm)	Tolerances
Hot rolled	OD<50	±0.50mm
	OD≥50	±1%
	WT<4	±12.5%
	WT 4~20	+15%, -12.5%
	WT>20	±12.5%
Cold drawn	OD 6~10	±0.20mm
	OD 10~30	±0.40mm
	OD 30~50	±0.45
	OD>50	±1%
	WT≤1	±0.15mm
	WT 1~3	+15%, -10%
	WT >3	+12.5%, -10%

The raw material of seamless carbon steel pipe is round tube billet, round tube billet to be cut by the cutting machine, the length of the billet is about 1 meter, and sent to the furnace by the conveyor belt heating. The billet is fed into a furnace and heated to about 1200 degrees Celsius. The fuel is hydrogen or acetylene. The temperature control in the furnace is the key problem. After the round tube billet comes out, it is perforated by the pressure punch. Generally, the most common perforator is the conical roll perforator. This kind of perforator has high production efficiency, good product quality, large perforating diameter and can wear a variety of steel. After perforation, the round tube billet is successively rolled by three high diagonal, continuous rolling or extrusion. After extrusion, the pipe should be removed for sizing. The caliper rotates into the steel embryo through a conical drill at high speed to punch holes and form steel pipes. The inner diameter of the steel pipe is determined by the outer diameter length of the caliper drill bit. After sizing the steel pipe, it enters the cooling tower and is cooled by spraying water. After cooling the steel pipe, it will be straightened. After straightening, the steel pipe is sent by conveyor belt to the metal inspection machine (or hydraulic test) for internal inspection. If there are cracks, bubbles and other problems inside the steel pipe, it will be detected. Steel pipe quality inspection after the strict hand selection. After the steel pipe is inspected, the number, specification and production lot number are sprayed with paint. And by the crane into the warehouse.

 

Company Profile

  Our company is a large international steel production and sales enterprise integrating production, sales, processing, distribution and service. The warehouse covers an area of more than 30,000 square meters with an annual output of 400,000 tons. GB, ASTM, JIS, DIN and other standards can be implemented. With Chengdu Iron and Steel Group, Metallurgical Group, Baosteel Group, Baosteel Group, Angang Group and other well-known domestic steel mills to establish a longterm cooperative relationship.

Certifications
  The testing equipment is complete and the technical force is strong.  The warehouse covers an area of more than 30000 square meters, with an annual production of 400000 tons.  GB, ASTM, JIS, DIN and other standards can be implemented.

FAQ:
Q1:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q2:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q3:What product information do I need to provide?
A:You need to provide the grade, length, width, diameter, thickness, coating and the number of tons you need to purchase.
Q4:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept  third party inspection.
Q5:How do we trust your company?
A:We specialise in steel business for years , headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.