| Customization: | Available |
|---|---|
| After-sales Service: | 24 Hours Service |
| Warranty: | 6 Months |
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Standard |
ASTM A213 T5 A209 T1 A335 P11 P22 P5 alloy steel pipe AP175-79, DIN2I5L , ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A179/A192/A213/A210 /370 WP91, WP11,WP22. DIN17440, DIN2448,JISG3452-54,DIN 17175. |
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Material |
15CrMoG,12Cr2MoG,12Cr1MoVG,12Cr2MoWVTiB,10Cr9Mo1VNb,SA210A1,SA210C,SA213 T11,SA213 T12,SA213 T22,SA213 T23,SA213 T91,SA213 T92,ST45.8/,15Mo3,13CrMo44,10CrMo910,16Mn 12Cr1MoV T91 27SiMn 30CrMo 15CrMo 20G Cr9Mo 10CrMo910 15Mo3 15CrMoV 35CrMoV 45CrMo |
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Certificates |
API5L ISO 9001:2008 TUV SGS BV etc |
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Outside Diameter |
1/2'--24' |
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32mm-630mm |
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Thickness |
SCH5S, SCH10S, SCH20S,SCH20, SCH30,STD, SCH40, SCH60, SCH80, SCH100, SCH140, SCH160,XS, |
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1.65mm-59.54mm |
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Length |
5.8m 6m Fixed, 12m Fixed, 2-12m Random. |
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Technic |
1/2'--6': hot piercing processing technic |
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6'--24' : hot extrusion processing technic |
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Surface Treatment |
Black Painted, Galvanized, Natural, Anticorrosive 3PE coated,polyurethane foam Insulation . |
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Packing |
Bundles or In bulk. bundled pipes with two slings at the both end for easy loading and discharging, |
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End |
Bevel end(>2"), Plain (≤2"),with plastic cap, with screwed and socket. |
(1) Raw materials, i.e. strip steel coil, welding wire and flux. Before being put into operation, it must undergo strict physical and chemical inspection.
(2) The butt joint of strip steel head and tail adopts single wire or double wire submerged arc welding, and automatic submerged arc welding is adopted for repair welding after rolling into steel pipe.
(3) Before forming, the strip steel is leveled, trimmed, planed, cleaned, transported and pre bent.
(4) The pressure gauge on both sides of the strip conveyor is used to control the pressure of the oil cylinder stably.
(5) Adopt external control or internal control roll forming.
(6) The weld gap control device is used to ensure that the weld gap meets the welding requirements, and the pipe diameter, misalignment and weld gap are strictly controlled.
(7) Both internal welding and external welding adopt American Lincoln Electric welding machine for single wire or double wire submerged arc welding, so as to obtain stable welding specifications.
(8) All welded welds are inspected by online continuous ultrasonic automatic flaw detector, ensuring 100% coverage of nondestructive testing of spiral welds. If there are defects, it will automatically alarm and spray marks, and the production workers will adjust the process parameters at any time to eliminate the defects in time.
(9) The steel pipe is cut into single pieces by air plasma cutting machine.
| ASTM A53 /A106 Chemical Components and Machanical Property | |||||||||||||
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A53 | A | ≤0.25 | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥330 | ≥205 | ≥29.5 |
| B | ≤0.30 | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥29.5 | |
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Si | Mn | P | S | Cu ,Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A106 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥30 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥485 | ≥275 | ≥30 | |
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