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Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting

Categories	Hot Rolled Seamless Steel Pipe
Brand Name:	XIANGTONGHUIYUAN
Model Number:	Cold rolled seamless steel tube
Certification:	ASTM AISI JIS IS3001
Place of Origin:	China
MOQ:	5TONS
Price:	USD 800-1200 TONS
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	2500/TONS /MONTH
Delivery Time:	5-8 work days
Packaging Details:	Standard package , beveled ends, anti-rust oil, plastic caps or as customer’s requirements
Length:	3-12m
Type:	SMLS
Thickness:	2.2 - 70 mm
Standard:	ASTM
Technique:	Hot Rolled
Alloy or not:	no Alloy
Grade group:	API 5L ASTM A106 A53
Section shape:	Round
Outer diameter(round):	10 - 3046 mm
Standard2:	ASTM A106-2006
Special pipe:	API Pipe

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Shandong Xiangtong Huiyuan Metal Materials Co., Ltd.

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Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting

High quality ASTM A106/A53 Gr. carbon hot rolled seamless steel pipe with black painting
Product Description

Decarburization is a phenomenon in which the surface carbon content of the steel pipe (CS seamless pipe) decreases during the heat treatment process. The essence of decarburization is that the carbon atoms in the steel tube react with the furnace atmosphere such as hydrogen or oxygen at high temperature to form methane or carbon monoxide.

carbon steel seamless pipe

Decarburization is the result of inter-atomic diffusion during heat treatment. On the one hand, oxygen diffuses into the steel; on the other hand, carbon in the steel diffuses outward. A decarburized layer can only form when the decarburization rate exceeds the oxidation rate. When the oxidation speed is high, no obvious decarburization phenomenon occurs, that is, after the decarburization layer is formed, the iron is oxidized to form an oxide scale. Therefore, in an atmosphere with relatively weak oxidation, a deeper decarburized layer can be formed.

The decarburization layer of the steel pipe includes two parts: the full decarburization layer and the partial decarburization layer (transition layer). The partial decarburization layer refers to the structure where the carbon content of the steel is normal after the full decarburization layer. In the case where the decarburization is not serious, sometimes only a partial decarburization layer is seen without a full decarburization layer.

The depth of the decarburized layer can be measured by various methods according to the changes in the decarburized components, structure and properties. In actual heat treatment production, the determination of the decarburized layer of steel by metallographic method is the most common.

Countermeasures to prevent decarbonization mainly include the following aspects:

1) When the workpiece is heated, the heating temperature and the residence time at high temperature should be reduced as much as possible; the heating speed should be reasonably selected to shorten the total heating time;

2) Control the appropriate heating atmosphere to make it neutral or use protective gas for heating;

3) During the hot pressing process, if the production is interrupted due to some accidental factors, the furnace temperature should be lowered to wait for the production to resume. If the pause time is very long, the billet should be taken out of the furnace or cooled with the furnace;

4) When performing cold deformation, reduce the number of intermediate annealing and the temperature of intermediate annealing as much as possible, or use softening tempering instead of high temperature annealing. When performing intermediate annealing or softening tempering, heating should be carried out in a protective medium;

5) When heated at high temperature, the surface of steel is protected by covering and coating to prevent oxidation and decarburization;

6) Correct heat treatment process operation and increase the machining allowance of the workpiece, so that the decarburized layer can be completely removed during processing.

product name	carbon seamless pipe Hot rolled Seamless Steel Tubes
standard	GB, JIS, DIN, ASTM, bs, GB 18248-2000, JIS G3463-2006
Material	10#.20#.45#15Mn.20Mn.45Mn.30Mn2 q235 A106
packing	1.Wrapped in waterproof paper of steel pipe tube 2.Sackcloth with several steel strips of steel pipe tube 3.Cover cap of steelpipe tube 4. Wooden case of steel pipe tube
size	OD 3-300MM wall thickness: 1-30MM
suface	1. PVC, black and paint 2. Transparent oil and rust-proof oil 3. According to customer requirements
MOQ	1TONS
Trade	T/T, 100% L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me

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FAQ:
Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Silaishi Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.

Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available

Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.

Q4. CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.

Q5: HOW TO VISIT YOUR FACTORY?
A5.Flights to Jinan are available from most major cities; You can take a plane to Jinan Yaoqiang Airport.

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Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting

Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting

Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting

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Hot Rolled A106 Seamless Steel Pipe ASTM A53 Gr. Carbon With Black Painting