The Importance of Understanding the Price Factors of API 5L GR.B Seamless Pipe / ASTM A106
The price of API 5L GR.B seamless pipe and ASTM A106 is an important factor to consider when purchasing these materials. Understanding the price factors can help buyers make informed decisions and ensure they are getting the best value for their money.
One of the main factors that influence the price of these pipes is the raw Material cost. The cost of the steel used to manufacture the pipes can vary depending on factors such as the current market price, availability, and quality. Higher quality steel will generally be more expensive, but it also offers better performance and durability.
Another factor that affects the price is the manufacturing process. Seamless pipes are made by piercing a solid billet of steel to create a hollow tube. This process requires specialized equipment and skilled labor, which can increase the cost of production. On the other hand, pipes made using the ERW (Electric Resistance Welding) process are generally cheaper but may not offer the same level of strength and reliability.
The size and thickness of the pipes also play a role in determining the price. Larger and thicker pipes require more raw material and additional processing, which can drive up the cost. Additionally, the Length of the pipes can affect the price, as longer pipes require more material and may require special transportation arrangements.
The market demand for these pipes is another important factor to consider. When the demand is high and the supply is limited, the prices tend to increase. Conversely, when the demand is low and there is an oversupply, the prices may decrease. It is important for buyers to stay informed about market trends and fluctuations to make the most cost-effective purchasing decisions.
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Labels a
Calculated Mass c
Nominal Linear Mass T& C b,c
Wall Thick- ness
em, Mass Gain or Loss Due to End Finishing d
Outside Diameter
Inside Diameter
Drift Diameter
Plain- end
kg
Round Thread
Buttress Thread
wpe
D
kg/m
t
D
mm
kg/m
Short
Long
RC
SCC
mm
mm
mm
1
2
3
4
5
6
7
8
9
10
11
12
13 3/8
48
339.72
71.43
8.38
322.96
318.99
68.48
15.04
—
— 17.91
—
13 3/8
54.5
339.72
81.1
9.65
320.42
316.45
78.55
13.88
—
16.44
—
13 3/8
61
339.72
90.78
10.92
317.88
313.91
88.55
12.74
—
14.97
—
13 3/8
68
339.72
101.19
12.19
315.34
311.37
98.46
11.61
—
14.97
—
13 3/8
68
339.72
101.19
12.19
315.34
311.37
98.46
11.67 f
—
14.33
—
13 3/8
72
339.72
107.15
13.06
313.6
311.15 e
105.21
10.98
—
13.98
—
13 3/8
72
339.72
107.15
13.06
313.6
311.15 e 309.63 309.63
105.21
10.91 f
—
14.33
—
13 3/8
72
339.72
107.15
13.06
313.6
105.21
10.98
—
13.98
—
13 3/8
72
339.72
107.15
13.06
313.6
105.21
10.91 e
—
—
16
65
406.4
96.73
9.53
387.4
382.57
96.73
18.59
—
— 20.13
—
16
75
406.4
111.61
11.13
384.1
379.37
108.49
16.66
—
18.11
—
16
84
406.4
125.01
12.57
381.3
376.48
122.09
14.92
—
—
—
16
109
406.4
162.21
16.66
373.1
368.3
160.13
—
—
—
18 5/8
87.5
473.08
130.21
11.05
450.98
446.22
125.91
33.6
—
39.25
—
20
94
508
139.89
11.13
485.7
480.97
136.38
20.5
27.11
24.78
—
20
94
508
139.89
11.13
485.7
480.97
136.38
20.61
27.26 g 24.27 17.84
24.78
—
20
106.5
508
158.49
12.7
482.6
477.82
155.13
18.22
22
—
20
133
508
197.93
16.13
475.7
470.97
195.66
13.03
16.02
—
NOTE See also Figures D.1, D.2, and D.3.
a Labels are for information and assistance in ordering.
b Nominal linear masses, threaded and coupled (Column 4) are shown for information only.
c The densities of martensitic chromium steels (L80 Types 9Cr and 13Cr) are less than those of carbon steels; The masses shown are therefore not accurate for martensitic chromium steels; A mass correction factor of 0.989 shall be used.
d Mass gain or loss due to end finishing; See 8.5.
e Drift diameter for most common bit size; This drift diameter shall be specified in the purchase agreement and marked on the pipe; See 8.10 for drift requirements.
Lastly, the reputation and credibility of the supplier can influence the price. Established and reputable suppliers may charge a premium for their products due to their track record of delivering high-quality materials and excellent customer service. However, it is important for buyers to do their due diligence and ensure that they are dealing with a reliable supplier who offers competitive prices.
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.
In conclusion, understanding the price factors of API 5L GR.B seamless pipe and ASTM A106 is crucial for buyers looking to make informed purchasing decisions. Factors such as raw material cost, manufacturing process, size and thickness, market demand, transportation costs, and
