2017/12/21

In Stock ERW Pipe Price Dec 21 - Dec 28, 2017

API 5L/A53 GR.B, ERW Steel Pipe
Outside DiameterWall ThicknessLengthQuantity 数量RemarkEXW CHINA 
外径 (mm)壁厚 (mm)长度 (mtr)PCS 根数TON 吨位Surface,EndUSD/TON
141.32.00 62339.60 PE.BARE$632.22
141.32.20 61888.51 PE.BARE$625.46
141.32.30 626212.39 PE.BARE$617.36
141.32.40 61939.52 PE.BARE$609.25
141.32.50 620210.37 PE.BARE$603.85
141.32.75 618810.60 PE.BARE$597.10
141.33.00 61368.35 PE.BARE$590.34
168.32.75 63200215.55 PE.BARE$617.36
168.33.00 651037.42 PE.BARE$601.15
168.33.25 61229.68 PE.BARE$598.45
168.33.56560 47.79 PE.BARE$597.10
168.33.75688 8.03 PE.BARE$597.10
168.34.0 6122 11.86 PE.BARE$595.74
168.34.2 6560 57.11 PE.BARE$595.74
168.34.50688 9.60 PE.BARE$595.74
33.42.906333 5.00 BLACK$647.33
42.24.856393 8.00 BLACK$669.04
48.33.686412 10.00 BLACK$652.76
60.33.91650 14.58 BE. BLACK$666.33
735.166618 32.00 BE. BLACK$667.68
88.94.37622115.00 BE. BLACK$643.26
114.37.146879.57 BE. BLACK$709.75
168.37.1165014.58 BE. BLACK$708.40
2198.18610627.00 BE. BLACK$701.61
2739.276228.00 BE. BLACK$662.26
29911.8 63215.98 BE. BLACK$713.83
32512.5 611264.73 BE. BLACK$702.97
35511.1 612671.35 BE. BLACK$709.75
37713.7567857.64 BE. BLACK$716.54
40612.766648.78 BE. BLACK$723.32
Note:  
1. The above price is based on BARE PIPE, for extra coating, please contact sales@primesteeltube.com
          2. The above price is based on EXW, for FOB/CIF/CFR price, please contact sales@primesteeltube.com;
          3. The above price is NOT including any packing and end processing charge;
          4. The above price is only valide during Dec 21 - Dec 28 
          5. The applicapable MOQ for this price list is over 25 tons;

2017/12/14

In Stock ERW Pipe Price Dec 14 - Dec 21, 2017

API 5L/A53 GR.B, ERW Steel Pipe
Outside DiameterWall ThicknessLengthQuantity 数量RemarkEXW CHINA 
外径 (mm)壁厚 (mm)长度 (mtr)PCS 根数TON 吨位Surface,EndUSD/TON
33.43.38 61181.77 PE. BLACK$685.13
42.23.56 62915.92 PE. BLACK$686.50
48.33.68 61493.62 PE. BLACK$681.03
60.33.91 6882.87 BE. BLACK$675.56
735.16 6814.20 BE. BLACK$676.92
88.95.49 617211.65 BE. BLACK$697.44
114.36.02 6525.02 BE. BLACK$674.19
168.37.11 125920.01 BE. BLACK$681.03
193.76.50 6234.14 BE. BLACK$675.56
219.18.18 12300153.17 BE. BLACK$681.03
244.57.5677 20.25 BE. BLACK$681.03
273.19.271276 55.00 BE. BLACK$656.41
323.99.5 692 40.78 BE. BLACK$694.70
406.412.7 645 33.29 BE. BLACK$724.79
50815.09610 11.01 BE. BLACK$748.03
33.42.106333 5.00 BLACK$708.00
42.22.506393 8.00 BLACK$700.00
48.33.256412 10.00 BLACK$680.00
60.34.256521 17.00 BE. BLACK$707.00
734.756618 32.00 BE. BLACK$692.00
88.95.25622115.00 BE. BLACK$692.00
114.36.25619719.00 BE. BLACK$715.00
168.38.7565910.00 BE. BLACK$704.00
2197.75610627.00 BE. BLACK$692.00
2737.7562220.00 BE. BLACK$696.00
1274.8 611450.00 BE. BLACK$684.00
1656.3 626020.00 BE. BLACK$706.00
1803.8 635030.00 BE. BLACK$683.00
193.74672116.00 BE. BLACK$691.00
244.54.7569836.00 BE. BLACK$700.00
Note:  
1. The above price is based on BARE PIPE, for extra coating, please contact sales@primesteeltube.com
          2. The above price is based on EXW, for FOB/CIF/CFR price, please contact sales@primesteeltube.com;
          3. The above price is NOT including any packing and end processing charge;
          4. The above price is only valide during Dec 14 - Dec 21 
          5. The applicapable MOQ for this price list is over 25 tons;

Method to Prevent Oil and Gas Spiral Steel Pipe Corrosion

Oil and gas spiral steel pipe corrosion means to slow or prevent pipeline in internal and external medium under the action of chemical, electrochemical, or eroded by microbial metabolic activity and metamorphism.

First of all, to prevent third-party damage and oil and gas spiral steel pipe corrosion. Although assumes
primary responsibility for third-party damage to subsea pipeline owner, it can not say nothing to do. Many countries of the laying of submarine oil and gas pipelines have stringent industry standards, such as burying insufficient proof would be difficult to provide adequate protection anchors, which requires pipeline owners guidance in strict accordance with industry standards in the laying process, meticulous to achieve adequate protection of the anti-anchor depth, while the laying of the competent authorities to deal with the construction quality oversight of those. In such a shallow Bohai Bay, for example, taking into account the characteristics of the seabed, the water transport density and offshore mechanical range of subsea pipeline damage, Trench should reach 1.5 meters to 2 meters in depth safer.


In addition, the pipeline corrosion cracking rarely cause a large area. You can use the material by regulating, monitoring manufacturing quality, strict control of weld quality and use "smart pig" exploration and other means to reduce accidents caused by corrosion cracking. For operators are demanding underwater inspection, as specific measures of environmental protection commitments.

Secondly, the pipeline owner should strictly enforce regular inspection system, and improve leak detection and monitoring capabilities, improve the level of detection and monitoring equipment. But now, detection systems and devices have their limitations in sensitivity, accuracy, aspects of reliability, operability and continuous detection capability also needs to be improved. For example, the area of rupture  points generated by the corrosion is usually very small, especially in the joints, valves and other connections appear breaking point, overflow rate is not, in quite a long time, there is no clear indication of testing equipment, so many accidents after the occurrence, offshore artificial observation or INMARSAT first discovered. In addition, the owner of the undersea pipelines and gas pipelines should provide all the information, including the laying of coping distance route map, detailed risk segment and the emergency occurred.
In addition, reference subsea oil and gas pipelines history and accident cases internationally, well-planned emergency response is the key to prevention of subsea oil and gas pipeline rupture. Subsea oil and gas pipeline owner must first develop targeted emergency response plan to ensure oil and gas pipelines ruptured after the accident, it is possible to clearly define different areas and levels of authorities, emergency response agencies and subsea oil and gas pipeline owner, operator's responsibilities, needs What emergency resources, while supporting the clear and concise strategic plan of action. The contingency plan should also consider the possibility of expansionHealth Fitness Articles, especially with the overall contingency plan operator convergence.

Order--SSAW Steel Pipe to Melbourne

Product: SSAW Steel Pipe
Standard: API 5L GR.B
Specification: 406.4X6.35X12000  406.4X9.53X12000
Surface: BARE
Ends: BE
Quantity: 36TONS
Production Time: 15 DAYS
Destination: Melbourne
Sales Expert: Landry Liu



2017/12/07

The Benefits and Applications of Alloy Steel Pipes

​The main applications of alloy steel pipes is power station, nuclear power plant, high pressure boiler, high temperature superheater and re-heater coil etc. of high temperature pipeline and equipments.


The advantages of alloy steel pipes: 100% recycled, it is suitable for the national strategy of environmental protection, energy-saving and resource-saving. Therefore, the national policy encourages the expansion of the high pressure alloy steel pipe applications. At present, the proportion of the total alloy steel tube is half of the developed countries. The applications of alloy steel pipe provide a broad space for the industry development. According to the research of the China association of special steel alloy pipe expert group, our country’s high pressure alloy steel pipe material demand grows by an average of up to 10-12%.

How do I choose which alloy steel to use? Selecting the right alloy  for a specific application is vitally important in order to achieve a sustainable solution, while cost aspects must also be taken into consideration. There are several stages when material selection needs to be made: new applications and equipment, new processes and process changes, exchange of material due to poor performance, exchange of existing material to minimize cost

To make the right material selection it is important to get a full picture of the service conditions the steel will face. The first aspects to consider could be material related, for example: corrosion resistance, mechanical strength, fabric ability, physical properties, surface aspects

Order--Precise Seamless Pipe to Brasil

Standard: SAE 4140/SAE 8620
Specification: Ø14.35mm(+0.10mm/-0) X 10mm(+0.05mm/+0.30mm)X6000mm
                         Ø19.5mm(±0.08mm) X 14.6mm(±0.15mm) X 6000mm
                         Ø38.10mm (+0/-0.16mm) X 19.9 (+0.10mm/-0) X 6000mm
Surface: bare
Ends: PE
Quantity: 17.8t
Production Time: 30 DAYS
Destination: Brasil
Sales Expert: Iris Hu



2017/11/30

The Classification of Line Pipe

​Line pipe is manufactured from high-strength carbon steel, and is made to strict engineering and metallurgical specifications developed by the American Petroleum Institute (API). Here we will introduce the classification of line pipe.



Pipe mills produce two types of line pipe: seamless and welded. Seamless pipe is formed from a cylindrical bar of steel that is heated to a very high temperature and then is pierced with a probe to create the hole through the cylinder.  Rollers size the cylinder to produce the proper diameter and wall thickness. This technique is used to make small diameter pipe, from 0.5 inches to 24 inches in diameter.

Most pipe produced for interstate natural gas pipelines is the welded variety, because interstate systems require larger diameter pipe.  Pipe mills manufacture line pipe by forming a steel plate or coil into a cylindrical shape, and closing the seam using a welding process.  The mill evaluates the quality of the weld seam using ultrasonic and/or radiological inspection methods and pressure tests each joint of pipe to levels significantly higher than the eventual operating pressure of the pipeline.  

The pipe is further tested to ensure that it meets all requirements of steel chemistry, strength and toughness, and dimensional characteristics.  Mills that produce line pipe to API specifications meet the most stringent criteria for steel making and pipe production technologies to ensure safe, reliable pipeline service.  The gas pipeline industry maintains the manufacturing and test records of the pipe for the life of the pipeline.