Alloy Steel pipe (2)

2 year ago

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3 year

Product details

Carbon Seamless Steel Pipe / Tube

Seamless carbon steel pipes are made of steel ingots or solid billets through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn. The raw material of carbon steel pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and sent to a furnace for heating through a conveyor belt. The billets are fed into the furnace and heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a critical issue. After the round tube blank is released from the furnace, it is pierced through a pressure punching machine. Generally, the more common punching machine is the conical roller punching machine. This kind of punching machine has high production efficiency, good product quality, large amount of perforation and diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively cross-rolled, continuously rolled or extruded by three rolls.

1. Seamless steel pipe for structure (GBT8162-2008). Mainly used for general structure and mechanical structure. Its representative material (brand): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

2. Seamless steel pipes for conveying fluids (GBT8163-2008). It is mainly used for conveying fluid pipelines in engineering and large-scale equipment. The representative material (grade) is 20, Q345, etc.

3. Seamless steel pipes for low and medium pressure boilers (GB3087-2008) are used to manufacture various structures of low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch bricks for locomotive boilers Hot-rolled and cold-drawn (rolled) seamless steel pipes of high-quality carbon structural steel for pipes. The representative material is 10, 20 steel.

Product Specification

Out Diameter	13.7mm-914mm
Wall Thickness	2mm-120mm
Length	2m-12m
Producing Standard	American ASME B36.10M, ASTM API 5L, API 5CT Japanese JIS, German DIN, Chinese GB, BS standard
Steel Grade	ASTM A53, A106, A210, A252, A178, A333, A335, SAE1018, SAE1020, SAE1045 etc; API 5L PSL1: A, B, x42, x46, x52, x56, x60, x65, x70 API 5L PSL2: B, x42, x46, x52, x56, x60, x65, x70, x80 JIS SS400, STPG42, G3454, G3456 etc; DIN St35, St35.8, St37, St42, St45, St52, DIN1626, DIN17175 etc; GB 10#, 20#, 45#, Q235, Q345, Q195, 16Mn, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo etc;
Special specifications	Available according to customer's requirements and quantity.
End Shape	Beveled end, plain end, varnished, or adding plastic caps to protect the two ends as per customer's requirements
Surface treatment	Painted, Oiled, galvanized, phosphate etc
Usage	1.Widely used in the mechanical treatment field, petrochemical industry, transport and construction field 2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc; 3.The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc 4.Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc
Third party inspection	Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.

Chemical Composition and Mechanical Properties

Standard	Grade	Chemical Composition (max)%					Mechanical Properties (min)
Standard	Grade	C (Max.)	Mn (Max.)	Si (Max.)	S (Max.)	P (Max.)	Yield Strength(Mpa)	Tensile Strength(Mpa)
GB/T700-2006	Q235A	0.22	1.40	0.35	0.050	0.045	235	370
	Q235B	0.20	1.40	0.35	0.045	0.045	235	370
	Q235C	0.17	1.40	0.35	0.040	0.040	235	370
	Q235D	0.17	1.40	0.35	0.035	0.035	235	370
GB/T1591-2009	Q345A	0.20	1.70	0.50	0.035	0.035	345	470
	Q345B	0.20	1.70	0.50	0.030	0.030	345	470
	Q345C	0.20	1.70	0.50	0.030	0.030	345	470
BS EN10025	S235JR	0.17	1.40	-	0.035	0.035	235	360
	S275JR	0.21	1.50	-	0.035	0.035	275	410
	S355JR	0.24	1.60	-	0.035	0.035	355	470
DIN 17100	ST37-2	0.20	-	-	0.050	0.050	225	340
	ST44-2	0.21	-	-	0.050	0.050	265	410
	ST52-3	0.20	1.60	0.55	0.040	0.040	345	490
JIS G3101	SS400	-	-	-	0.050	0.050	235	400
JIS G3101	SS490	-	-	-	0.050	0.050	275	490
API 5L PSL1	A	0.22	0.90	-	0.030	0.030	210	335
	B	0.26	1.20	-	0.030	0.030	245	415
	X42	0.26	1.30	-	0.030	0.030	290	415
	X46	0.26	1.40	-	0.030	0.030	320	435
	X52	0.26	1.40	-	0.030	0.030	360	460
	X56	0.26	1.10	-	0.030	0.030	390	490
	X60	0.26	1.40	-	0.030	0.030	415	520
	X65	0.26	1.45	-	0.030	0.030	450	535
	X70	0.26	1.65	-	0.030	0.030	585	570
API 5L PSL2	B	0.22	1.20	-	0.025	0.015	245-450	415-760
	X42	0.22	1.30	-	0.025	0.015	290-495	415-760
	X46	0.22	1.40	-	0.025	0.015	320-525	435-760
	X52	0.22	1.40	-	0.025	0.015	360-530	460-760
	X56	0.22	1.40	-	0.025	0.015	390-545	490-760
	X60	0.22	1.40	-	0.025	0.015	415-565	520-760
	X65	0.22	1.45	-	0.025	0.015	450-600	535-760
	X70	0.22	1.65	-	0.025	0.015	483-621	565-758

Product Display

We can produce different sizes, thicknesses, widths and materials according to your requirements

Test Before Delivery

We will control the quality from part of material steel pipe, each pipe produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.

Factory Display

Carbon Seamless Steel Pipe

Packaging And Transportation

1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.

2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.

3) Trade terms: FOB/CIF/CFR

4) Shipping port: Qingdao/Tianjin/Shanghai

5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.

Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).

6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.