The cost comparison between erw Pipe and seamless pipe

ERW Pipe vs Seamless Cost
When it comes to choosing the right type of pipe for your project, cost is often a significant factor to consider. Two popular options in the market are ERW (electric resistance welded) pipe and seamless pipe. Both have their advantages and disadvantages, but understanding the cost comparison between the two can help you make an informed decision. Firstly, let’s delve into the manufacturing process of each type of pipe. ERW pipe is made by rolling a flat steel plate and Welding the seam with the help of an electric current. On the other hand, seamless pipe is produced by piercing a solid billet of steel and then rolling it into a seamless tube. This difference in manufacturing processes directly impacts the cost of each type of pipe. casing pipe,casing well pipe, casing supreme pipe, casing vs carrier pipe, casing for ac pipe, casing steel pipe, casing pipe size, casing pvc pipe price, casing pipe, casing pipe suppliers in china, casing capping pipe, casing drill Pipe,carrier pipe,casing pipe size,bushing Flange,bushing sleeve,bushing,bushing arm,bushing bearing,bushing Reducer,bushing tool,bushing pvc,bushing meaning
chemical CompositionCMnP≤S≤Si≤
0.06-0.180.27-0.630.0350.0350.25
One of the primary factors that affect the cost of ERW pipe is the cost of raw materials. Since ERW pipe is made from a flat steel plate, the cost of the plate itself plays a significant role in determining the overall cost. Additionally, the welding process involved in ERW pipe production requires electricity, which adds to the manufacturing cost. These factors contribute to ERW pipe being generally more affordable than seamless pipe. Seamless pipe, on the other hand, requires a solid billet of steel, which is typically more expensive than a flat steel plate. The manufacturing process of seamless pipe also involves more complex machinery and equipment, leading to higher production costs. These factors make seamless pipe generally more expensive than ERW pipe.
Tensile and Hardness Requirements
grade  Yield strength MPaTensile StrengthHardness a,cSpecified wall thicknessAllowable Hardness Variation b
 TypeTotal Elongation Under Load min MPamax  
   minmax HRCHBWmmHRC
12345678910
H400.5276552414
J550.5379552517
K550.5379552655
N8010.5552758689
N80Q0.5552758689
R950.5655758724
L80 L8010.555265565523241
L809Cr 13Cr0.555265565523241
  0.555265565523241
C9010.562172468925.4255£12.703
        12.71 to 19.044
        19.05 to 25.395
        ³ 25.406
T9510.565575872425.4255£12.703
        12.71 to 19.044
        19.05 to 25.395
        ³ 25.406
C1100.775882879330286£12.703
        12.71 to 19.044
        19.05 to 25.395
        ³ 25.406
P1100.6758965862
Q12510.658621034931b£12.703
        12.71 to 19.04 19.054
         5
a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method.
b No hardness limits are specified, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9.
c For through-wall hardness tests of Grades L80 (all types), C90, T95 and C110, the requirements stated in HRC scale are for maximum mean hardness number.
 API 5CT l80 casing Tubing Grade Color Codes
GradeGrade TypeNumber and Color of Bands for product a with Length ³ 1.8 mColor(s) for couplings
   Entire couplingBand(s) b, c
12345
H40None or black band at the manufacturer’s optionNoneSame as for pipe
j55 tubingOne bright greenBright greenNone
J55 CasingOne bright greenBright greenOne white
K55Two bright greenBright greenNone
N801One redRedNone
N80QOne red, one bright greenRedGreen
R95One brownBrownNone
L801One red, one brownRedOne brown
L809CrOne red, one brown, two yellowNoneTwo yellow
L8013CrOne red, one brown, one yellowNoneOne yellow
C901One purplePurpleNone
T951One silverSilverNone
C110One white, two brownWhiteTwo brown
P110One whiteWhiteNone
Q1251One orangeOrangeNone
a In the case of coupling Material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern.
b special clearance couplings shall also have a black band.
c Seal-ring couplings shall also have a blue band.
Another aspect to consider when comparing the cost of ERW pipe and seamless pipe is the availability of sizes and specifications. ERW pipe is available in a wide range of sizes and specifications, making it easier to find the right fit for your project. This availability helps keep the cost of ERW pipe competitive. On the other hand, seamless pipe is often limited in terms of sizes and specifications, which can drive up the cost due to the higher demand for specific sizes. Furthermore, the transportation cost of each type of pipe should also be taken into account. ERW pipe, being made from a flat steel plate, can be easily rolled and transported in large quantities. This ease of transportation helps keep the cost down. In contrast, seamless pipe, being a solid billet, requires more careful handling and transportation, which can increase the overall cost. alt-5912 alt-5913 It is important to note that while ERW pipe may be more cost-effective in terms of initial purchase, there are other factors to consider in the long run. Seamless

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