Large diameter steel pipe plays an important role in oil and gas transmissions. It used a lot for long distances pipeline projects, since it could carry more liquid and with big flow rate. Especially for recent years, the use of large diameter steel pipe is increasing.
When we talking about large diameters pipe, It usually refers to the pipe in welded like LSAW pipe or SSAW pipe; More over, it also includes large diameter seamless pipe in some circumstances.
It shall be noted that for a high pressure pipeline large diameter seamless pipe is preferred. Since in welded type it is not expected as seamless types to bear the big pressure (the weakest point of the welded pipe is the welded seam on it). The welded seam can break or crack at anytime hence, people are looking for seamless large pipes for various things.
Certificates: API 5L PSL1, PSL2, API 5CT, ISO, CE, DIN, JIS Carbon Steel Pipe, Oil Pipe, Gas Pipe, Pipe, Pipes, Steel Pipes, Steel Tube
1. OD: 219-3620mm, WT: 6-30mm;
2. Standard: API 5L PSL2
3. Material: X52
4. WT Schedule: SCH10S, SCH20, 40, 80, 160,
5. Process Technics: SAW
6. Surface Treatment: FBE, 2PE/3PE, 2PP/3PP OR AS REQUIRED
7. Package Type: In bundles with plastic caps, covered with plastic woven bag, strapped. By steel band, or according to your demand.
8. Steel Pipe Regular Length: 5.8M for 20′ gp, 11.8M for 40′ gp, random length can be available.
| CHEMICAL SOMPOSITION (CAST ANALYSIS) IN% | |||||||
| PSL | Steel grade | Delivery condition |
C max | Si max | Mn max | P max | S max |
| PSL1 | B(L245) | R,N | 0.28 | — | 1.20 | 0.030 | 0.030 |
| X42(L290) | R,N | 0.28 | — | 1.30 | 0.030 | 0.030 | |
| X46(320) | R,N | 0.28 | — | 1.40 | 0.030 | 0.030 | |
| X52(360) | R,N | 0.28 | — | 1.40 | 0.030 | 0.030 | |
| X56(390) | R,N | 0.28 | — | 1.40 | 0.030 | 0.030 | |
| X60(415) | R,N | 0.28 | — | 1.40 | 0.030 | 0.030 | |
| PSL2 | BR(L245R) BN(L245N) |
R,N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 |
| X42R(L290R) X42N(L290N) |
R,N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 | |
| X46N(L320N) | N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 | |
| X52N(L360N) | N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 | |
| X56N(L390N) | N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 | |
| X60N(L415N) | N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 | |
| Note: R: As-rolled; N: normalizing rolled, normalizing formed | |||||||
| MECHANICAL PROPERTIES | |||||||
| PSL | Steel grade | Yield strength Min(Mpa) |
Tensile strength Min(Mpa) |
Elongation A Min(%) |
Impact energy J |
||
| Test temperature | |||||||
| 0ºC | |||||||
| PSL1 | B(L245) | 245 | 415 | AS PER API 5L |
— | ||
| X42(L290) | 290 | 415 | — | ||||
| X46(L320) | 320 | 435 | — | ||||
| X52(L360) | 360 | 460 | — | ||||
| X56(L390) | 390 | 490 | — | ||||
| X60(L415 | 415 | 520 | — | ||||
| PLS2 | BR(L245R) BN(L290N) |
245-450 | 415-760 | AS PER API 5L |
AS PER API 5L |
||
| X42R(290R) X42N(L290N) |
290-495 | 415-760 | |||||
| X46N(L320N) | 320-525 | 435-760 | |||||
| X52N(L360N) | 360-530 | 460-760 | |||||
| X56N(L390N) | 390-545 | 490-760 | |||||
| X60N(L415N) | 415-565 | 520-760 | |||||
Large diameters refer to pipe above 457 mm (16 inch) and 508 mm (20 inch)
As we know maximum diameters for ERW pipe usually is 457 mm 16 inch, so we can say the pipe diameters is larger than this OD are known to be large diameters pipes.
For LSAW and SSAW large steel pipe: From 508 mm 20 inch to 2540 mm 100 inch.
For large diameter seamless pipe also refer to the pipe that more than 16 inch or 20 inch. Since the pipe larger than these sizes, will not be manufactured only by hot rolling, an additional process hot expanding will be applied. This way could enlarge the pipe diameters in a short time, with low cost and high efficiency, therefor it has became a modern way of manufacturing large seamless pipes.
Hot expanding
Hot expanding process also known by thermal expansion process. It is to heat the pipe into a near transformation temperature, use corner skew rolling method or hot drawing method to expand seamless pipe diameters.
1.Application
(1) Wildly used in petrol industry
(2) Water transportation
(3) Gas transportation
(4) Furniture application
(5) Motorbike
(6) Medical equipment
(7) Sport equipment
(8) other field construction
Large Diameter Seamless Stainless Steel Pipe ASTM A213 Tp309s
FOB Price: US $1,800 / Ton
Min. Order: 1 Ton
Type : Seamless
Technique : Cold Drawn
Material : Stainless Steel
Large Diameter ASTM A213 TP304L Seamless Stainless Steel Pipe
FOB Price: US $1,500 / Ton
Min. Order: 1 Ton
Type : Seamless
Technique : Cold Drawn
Material : Stainless Steel
24 Inch Sch40 A312 Large Diameter Stainless Steel Pipe
FOB Price: US $1,800 / Ton
Min. Order: 1 Ton
Type : Seamless/Welded
Technique : Cold Drawn
Material : Stainless Steel
Large Diameter 24″ A106 Gr. B Carbon Steel Seamless Steel Pipe
FOB Price: US $800-1,600 / Ton
Min. Order: 20 Tons
Type : Seamless
Technique : Hot Rolled
Material : Carbon Steel
Large Diameter 36 Inch Std API 5L Gr. B Seamless Carbon Steel Pipe
FOB Price: US $500 / Ton
Min. Order: 1 Ton
Type : Seamless
Technique : Hot Rolled
Material : Carbon Steel
Large Diameter API 5CT Oil Well Casing Pipe
FOB Price: US $600 / Ton
Min. Order: 1 Ton
Temperature Classification : Medium Temperature Piping
MPa Classfication : High Pressure Piping
Material : Carbon Steel
Large Diameter Carbon Steel Pipe
FOB Price: US $490 / Ton
Min. Order: 5 Tons
Type : Seamless
Technique : Hot Rolled
Material : Carbon Steel
Large Diameter Carbon Square Steel Pipe Q235B China Manufacture
FOB Price: US $450 / Ton
Min. Order: 5 Tons
Technique : Hot Rolled
Surface Treatment : Coated
Standards : ASTM A53-2007, GB/T 3094-2000, JIS G3466, En10219
Carbon Steel SSAW LSAW Pipe
FOB Price: US $450 / Ton
Min. Order: 5 Tons
Type : Welded
Technique : SAW
Material : Carbon Steel
Large Diameter Thick Wall LSAW Welded Steel Pipe, API 5L X52, X65m Psl2 Oil Transmission Pipeline
FOB Price: US $480 / Ton
Min. Order: 5 Tons
Product Standard : API 5L
Material Grade : B,X42,X46,X52,X56,X60,X65,X70,X80
Pipe End : Plain End, Beveled, Cut Square, Grooved, Threaded
Oil Drill Pipe API 5dp P110 N80 L80
FOB Price: US $650-1,200 / Ton
Min. Order: 1 Ton
Certification : CE, API, ISO
Length : 12.19-13.72m
Usage : Well Drilling
Contact NowInquiry Basket
S135 5inch Grade S Tool Joints Nc 50 API 5D/API 5dp Drill Pipe
FOB Price: US $800-1,200 / Ton
Min. Order: 1 Ton
Certification : CE, API, ISO
Length : 12.19-13.72m
Usage : Oil Mining
Sales of G105 5inch Grade G Tool Joints Nc 50 API 5D/API 5dp Drill Pipe
FOB Price: US $800-1,200 / Ton
Min. Order: 1 Ton
Certification : CE, API, ISO
Length : 12.19-13.72m
Usage : Oil Mining
G105 3 1/2inch Grade G Tool Joints Nc 38 API 5D/API 5dp Drill Pipe
FOB Price: US $600-1,200 / Ton
Min. Order: 1 Ton
Certification : CE, API, ISO
Length : 12.19-13.72m
Usage : Oil Mining, Coal Mining, Well Drilling
9-5/8″ L80 Premium Gas Psl 3 Casing Line Pipe
FOB Price: US $600 / Ton
Min. Order: 1 Ton
Temperature Classification : Medium Temperature Piping
MPa Classfication : High Pressure Piping
Material : Carbon Steel
A53 ERW LSAW Steel Pipe for Line Pipe
FOB Price: US $480 / Ton
Min. Order: 5 Tons
Type : Welded
Technique : SAW
Material : Carbon Steel
30 Inch Large Diameter Flanges
FOB Price: US $100 / Piece
Min. Order: 1 Piece
Standard : ANSI, DIN, GB, JIS
Type : Welding Flange
Material : Carbon Steel & Stainless Steel & Inconel Alloy
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DIN2395 500X500X12mm Large Diameter Carbon Steel Square Tubing for Construction
FOB Price: US $450-800 / Ton
Min. Order: 1 Ton
Temperature Classification : High Temperature Piping
MPa Classfication : High Pressure Piping
Material : Carbon Steel Pipe
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