Product classification
Thick walled seamless steel pipe thickened oil pipe API petroleum casing pipeline pipe
Seamless steel pipe is a steel pipe made by piercing a whole round steel without any welds on the surface, which is called seamless steel pipe. According to production methods, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold drawn seamless steel pipes, extruded seamless steel pipes, top pipes, etc. According to the cross-sectional shape, seamless steel pipes are divided into two types: circular and irregular. Irregular pipes have complex shapes such as square, elliptical, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm, and the minimum diameter is 4mm. According to different uses, there are thick walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as high-precision structural steel pipes for automobiles, tractors, and aviation.
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Seamless steel pipe is a steel pipe made by piercing a whole round steel without any welds on the surface, which is called seamless steel pipe. According to production methods, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold drawn seamless steel pipes, extruded seamless steel pipes, top pipes, etc. According to the cross-sectional shape, seamless steel pipes are divided into two types: circular and irregular. Irregular pipes have complex shapes such as square, elliptical, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm, and the minimum diameter is 4mm. According to different uses, there are thick walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as high-precision structural steel pipes for automobiles, tractors, and aviation.
Cangzhou Beigang Pipe Industry Co., Ltd. is a modern enterprise specializing in the production, foreign trade processing, and global logistics distribution of petroleum casing, seamless steel pipes and fittings. The main products include: American standard oil casing, oil casing manufacturers, pipeline pipes, Cangzhou oil casing, API oil casing, Hebei oil casing, polyurethane insulation pipeline, galvanized wire steel pipe, 3PE anti-corrosion steel pipe, thickened oil pipe, etc., widely used in important engineering such as oil and gas fields, coalbed methane, geothermal hot spring wells, oil and gas transportation, fluid transportation, bridge structures, etc. The company has established a sincere and cooperative team at Beigang with strict management systems, advanced production processes, and a high-quality sales team. The company adheres to the spirit of innovation, practicality, and pursuit of excellence, continuously improving the comprehensive competitiveness of its products, and enjoys a good reputation in domestic and foreign markets.
Seamless steel pipe is a steel pipe made by piercing a whole round steel without any welds on the surface, which is called seamless steel pipe. According to production methods, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold drawn seamless steel pipes, extruded seamless steel pipes, top pipes, etc. According to the cross-sectional shape, seamless steel pipes are divided into two types: circular and irregular. Irregular pipes have various complex shapes, including square, elliptical, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm, and the minimum diameter is 4mm. According to different uses, there are thick walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as high-precision structural steel pipes for automobiles, tractors, and aviation.
Classification of seamless steel pipes:
1. Steel pipes without joints along the perimeter of their cross-section. According to different production methods, it can be divided into hot-rolled pipes, cold-rolled pipes, cold drawn pipes, extruded pipes, top pipes, etc., all with their own process regulations.
2. The materials include ordinary and high-quality carbon structural steel (Q215-A-Q275-A and 10-50 steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless acid resistant steel, etc.
3. It is divided into two categories according to its purpose: general purpose (used for water and gas pipelines and structural components, mechanical parts) and specialized purpose (used for boilers, geological exploration, bearings, acid resistance, etc.).
Application of seamless steel pipe:
1. Seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low alloy structural steel, or alloy structural steel, with the highest production capacity. They are mainly used as pipelines or structural components for conveying fluids.
2. Supply is divided into three categories according to different purposes:
a. Supply according to chemical composition and mechanical properties;
b. Supply according to mechanical performance;
c. Supply according to water pressure test. Steel pipes supplied in categories a and b, if used to withstand liquid pressure, must also undergo a water pressure test.
3. There are various types of seamless pipes for specialized purposes, including seamless pipes for boilers, seamless pipes for chemical power, seamless steel pipes for geological use, and seamless pipes for petroleum use.
Seamless steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes are lighter in weight when their bending and torsional strength is the same, making them an economical cross-sectional steel.
Widely used in the manufacturing of structural and mechanical parts, such as petroleum drill rods, automotive transmission shafts, bicycle frames, and steel scaffolding used in construction, steel pipes are used to manufacture circular parts, which can improve material utilization, simplify manufacturing processes, save materials and processing time. Steel pipes have been widely used in manufacturing.
1. Seamless steel pipes for structural use
Standard:
GB/T8162- Chinese National Standard
ASTM A53- American Society for Testing and Materials
ASME SA53- American Boiler and Pressure Vessel CodeUsage:
Seamless steel pipes for manufacturing pipes, containers, equipment, fittings, and mechanical structuresMain steel pipe grades produced:
10. 20, 35, 45, Q345, 15CrMo, 12Cr1MoV, A53A, A53B, SA53A, SA53B, etcDimensional tolerance:
Type of steel pipe External diameter（D）
Steel pipe wall thickness（S）
Cold drawn tube Outer diameter of steel pipe(mm)
Allowable deviation(mm)
Steel pipe wall thickness(mm)
Allowable deviation(mm)
＞30～50
±0.3
≤30
±10％
＞50～219
±0.8％
Hot-rolled pipe ＞219
±1.0％
＞20
±10％
Mechanical properties:
Standard Brand
Tensile strength（MPa）
Yield strength（MPa）
Elongation（％）
GB/T8162
10
≥335
≥205
≥24
20
≥390
≥245
≥20
35
≥510
≥305
≥17
45
≥590
≥335
≥14
Q345
≥490
≥325
≥21
15CrMo
≥440
≥295
≥22
12Cr1MoV
≥490
≥245
≥22
ASTM A53
ASME SA53
A
≥330
≥205
查看ASTM A53的表
查看ASME SA53的表
B
≥415
≥240
Chemical composition:
Standard
Brand
Chemical composition（％）
C
Si
Mn
P
S
Cu
Ni
Mo
Cr
V
GB/T8162
10
0.07～0.14
0.17～0.37
0.35～0.65
≤0.035
≤0.035
≤0.25
≤0.25
/
≤0.15
/
20
0.17～0.24
0.17～0.37
0.35～0.65
≤0.035
≤0.035
≤0.25
≤0.25
/
≤0.25
/
35
0.32～0.40
0.17～0.37
0.50～0.80
≤0.035
≤0.035
≤0.25
≤0.25
/
≤0.25
/
45
0.42～0.50
0.17～0.37
0.50～0.80
≤0.035
≤0.035
≤0.25
≤0.25
/
≤0.25
/
Q345
0.12～0.20
0.20～0.55
1.20～1.60
≤0.035
≤0.035
≤0.25
≤0.25
/
≤0.25
/
15CrMo
0.12～0.18
0.17～0.37
0.40～0.70
≤0.035
≤0.035
≤0.25
≤0.30
0.40～0.55
0.80～1.10
/
12Cr1MoV
0.08～0.15
0.17～0.37
0.40～0.70
≤0.035
≤0.035
≤0.25
≤0.30
0.25～0.35
0.90～1.20
0.15～0.30
ASTMA53
ASMESA53
A
≤0.25
/
≤0.95
≤0.05
≤0.06
≤0.40
≤0.40
≤0.15
≤0.40
≤0.08
B
≤0.30
/
≤1.20
≤0.05
≤0.06
≤0.40
≤0.40
≤0.15
≤0.40
≤0.08
2. Seamless steel pipes for hydraulic supports
Standard
GB/T17396-1998, ASTM A519, DIN 1629, JIS G 3473Purpose
Used for manufacturing hydraulic supports, pillars, and other hydraulic equipment in coal mines.
Chemical composition and mechanical properties
Grade Chemical composition(%) Mechanical propertie C Si Mn P S Cr Ni Cu Yield strength Tensile strength Elongation Reduction of area ≤ MPa MPa δ（%） Ψ（%） ≥ 45 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.25 0.20 335 590 14 / 27SiMn 0.24-0.32 1.10-1.40 1.10-1.40 0.030 0.030 0.30 0.30 0.30 500 680 14 40 45Mn2 0.42-0.49 0.17-0.37 1.40-1.80 0.035 0.035 0.25 0.25 0.25 560 700 13 / Outer diameter and wall thickness tolerances
Steel pipe size (millimeters) Allowable deviation Normal level Senior External diamete ±1.0% ±0.75% Wall thickness ≤20 ±12.5% ±10% ＞20 ＋12.5%，－10% 3. Classification Catalogue of National Steel Pipe Standards
77.140.75 Special pipe steel
Standard number Standard name Implementation date GB/T 5312-1999
Seamless carbon steel and carbon manganese steel pipes for ships 2000-8-1
GB/T 12770-2002
Stainless steel welded steel pipes for mechanical mechanisms 2003-2-1
GB/T 14975-2002
Seamless stainless steel pipes for structural use 2003-2-1
GB/T 14976-2002
Stainless steel seamless steel pipes for fluid transportation 2003-2-1
GB/T 17395-1998
Dimensions, shape, weight, and allowable deviations of seamless steel pipes 1998-1-2
GB/T 17396-1998
Hot rolled seamless steel pipes for hydraulic supports 1998-12-1
GB/T 18704-2002
Stainless steel composite pipe 2002-10-1
GB/T 18705-2002
Decorative welded stainless steel pipes 2002-10-1
GB/T 18984-2003
Seamless steel pipes for low-temperature pipelines 2003-8-1
GB 18248-2000
Seamless steel pipes for gas cylinders 2001-9-1
GB/T 3090-2000
Stainless steel small diameter seamless steel pipe 2001-9-1
GB/T 3093-2002
High pressure seamless steel pipes for diesel engines 2003-2-1
GB/T 3094-2000
Cold drawn special-shaped steel pipes 2001-9-1
GB/T 3639-2000
Cold drawn or cold-rolled precision seamless steel pipes 2001-9-1
GB 6479-2000
Seamless steel pipes for high-pressure fertilizer equipment 2001-9-1
GB/T 8162-1999
Seamless steel pipes for structural use 2000-8-1
GB/T 8163-1999
Seamless steel pipes for conveying fluids 2008-8-1
YB 4102-2000
Welded steel pipes for low and medium pressure boilers 2008-6-1
YB 4103-2000
Welded steel pipes for heat exchangers 2000-6-1
YB/T 171-2000
Complex cross-section irregular steel pipe 2000-12-1
YB/T 4112-2002
High strength weather resistant welded steel pipes for structural use 2003-3-1
YB/T 4028-2005
Welded steel pipes for deep well water pumps 2005-12-1
QB/T 2558-2002
Explosion expanded stainless steel composite steel pipe 2002-12-1
YB/T 5035-1996
Seamless steel pipes for automotive half axle sleeves 1996-10-1
YB/T 5209-2000
Welded steel pipes for transmission shafts 2000-6-1
GB/T 19830-2005
Petroleum and natural gas industries - Steel pipes for casing or tubing in oil and gas wells 2006-1-1
JG/T 178-2005
Cold formed rectangular steel pipes for building structures 2005-12-1
GB/T 14291-2006
Welded steel pipes for mining fluid transportation 2006-8-1
YB/T 176-2000
Ceramic lined composite steel pipe 2000-12-1
GB/T 20409-2006
Internal threaded seamless steel pipes for high-pressure boilers 2007-1-1
SY/T 6194-2003
Petroleum and natural gas industries - Steel pipes for casing or tubing in oil and gas wells 2003-8-1
YB/T 5363-2006
Decorative welded stainless steel pipes 2006-10-11
GB 13296-2007
Stainless steel seamless steel pipes for boilers and heat exchangers 2007-10-1
YB/T 4164-2007
Double layer copper welded steel pipe 2007-11-1
YB/T 4173-2008
Forged and bored thick walled seamless steel pipes for high-temperature use 2008-9-1
YB/T 4181-2008
Double welded cold-formed square and rectangular steel pipes 2008-9-1
YB/T 5305-2008
Carbon structural steel wire conduit 2008-9-1
GB/T 3089-2008
Stainless steel extremely thin-walled seamless steel pipe 2008-11-1
GB/T 13793-2008
Straight seam welded steel pipe 2008-11-1
GB/T 3091-2008
Welded steel pipes for low-pressure fluid transportation 2008-11-1
GB/T 21833-2008
Austenitic ferrite duplex stainless steel seamless steel pipe 2008-11-1
SY/T 6719-2008
Evaluation method for applicability of drill rods with defects 2008-12-1
关键词:- API petroleum casing
- Hebei Petroleum casing
- Polyurethane insulated pipeline
- Galvanized car wire steel pipe
- 3PE anti-corrosion steel pipe
- Thickened oil pipe
- American standard oil casing
- Oil casing manufacturer
- Conduit
- Cangzhou oil casing
Contact Us
Main business: American standard oil casing, pipeline pipe, Cangzhou oil casing, API oil casing, Hebei oil casing, polyurethane insulation pipe, galvanized wire steel pipe, 3PE anti-corrosion steel pipe, thickened oil pipe, large diameter oil casing, oil casing factory, insulation pipe, oil casing, anti-corrosion steel pipe, etc.
Address: Zhenggang Development Zone, Yanshan County, Hebei Province
Email:czbggy@163.com
Telephone:18831708666 18931747888
