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Oil Country Tubular Goods (OCTG)

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Oil Country Tubular Goods (OCTG)
1. API standard casing and Tubing from 1.05” to 36”. Associated Products
a.  Special Material: 1Cr/3Cr/9Cr/13Cr/28Cr     L80SS/P110SS/Q125SS
b. Premium Connection: TPCO/WSP/BaoSteel Series,etc.
•c. Premium Connection: 
Equivalent of New VAM,VAM TOP, VAM FJL; Hydril CS, PH6; Tenaris Blue, JFE Bear,Big Omega, RL-4 etc.
C.1.1Premium Thread KW-V/ VAM
•KW-NV          /    NEW VAM
•KW-VT          /   VAM TOP
•KW-V21        /    VAM 21
•KW-VFJ        /    VAM FJL
•KW-NVT       /    NEW VAM TOP
•KW-VBM      /    Big Omega
•KW-VHW      /    HW-ST
•KW-VACE    /    VAM ACE
C.1.2 KW-T/ Tenaris-Hydril
•KW-TH6   / PH-6
•KW-TH8   /  CS
•KW-TH4   /  PH-4
•KW-SLX   /  SLX
•KW-TBL   /  Blue
•C.1.3 KW-J / JFE
•KW-JF1   /  FOX
•KW-JB2   /  Bear
•KW-JT3    / Tiger
•C.1.4 KW-H / Hunting
•KW-HB  / Boss
•KW-HA  / Apex
•KW-HF  / SL-Flush
•C.2.1 Fast driven
•KW-JV   /  JV
•KW-CC  / CC
•KW-L4S / RL4S 
•KW-ER  / ER
2.  Drill Pipe/HWDP/Drill Collar/Kelly
a.  API/ Sour service/ Low temperature/Premium      connection drill pipe
 API/ Double shoulder / Premium thread /tool joints
Standard HWDP and Spiraled integral HWDP
Standard drill collar, Special spiral collar, Nonmagnetic drill collar.
Square kelly, Hexagon Kelly.
b.Drilling Tool Premium Joints
KW-VEIS   / VAM EIS                          
KW-XT      /    XT
KW-HT      /    HT
3.Line Pipe and Coating
Line Pipe
SMLS: 1/2”--26”
ERW: 2 3/8--26”
LSAW: 16--80”
SSAW: 8”—120”
External FBE, 2PP/2PE, 3PP/3PE.
External and Internal epoxy coating
Internal or external bitumen coating
Cement lining
Other kinds of coating for water/oil/gas
more Premium Connection  pls contact +86187 2932 9559


API Standard Pup Joint from 2-3/8" to 4-1/2"

API Oil Tubing Pup Joint

1. Size: 2 3/8", 2 7/8", 3 1/2", 4 1/2";
2. End Type: NU & EU;                                          
3. Steel Grade: J55, K55, N80-1, N80-Q, L80-1, P110 ;                                 
4. Specification: API Spec5CT & API 5B;   

5. Technique: Cold Drawn or Hot Rolled            
6. Feature: with oil on surface to avoid corrosion, high corrosion resistance and long running life.
7. Dimensions and their tolerances of tubing round-thread as per API spec 5B
8. Our tubing pup joint conform to API 5 CT standards, Length: 2FT/3FT/4FT/5FT/6FT/8FT/10FT/12FT and we can make different lengths and sizes according to the customer's requests.
9. Based on the principle of equality and mutual benefit, we provide the products with high quality   at competitive price 
10. Thread protector Packing: In Bundle or Wooden Cases or by the requirements of customers
10. Supply Ability: 10,000 EA per month   
11. Payment Term: L/C, T/T


Special Steel Grade Tubing and Casing
1.Products for anti-H2S corrosion
Steel Grades: BG80S,BG80SS,HS80S,HS80SS,BG95S,BG95SS,HS95S,HS95SS,BG110S,BG110SS,HS110S,HS110SS
2. Products for anti- CO2 corrosion
Steel Grades: L80-9Cr,L80-13Cr,BG55-1Cr,BG80-1Cr,BG90-1Cr,BG110-1Cr ,BG80-3Cr,BG90-3Cr,BG110-3Cr
Economic products for anti- H2S+CO2+Cl corrosion
Steel Grades: BG80S-3Cr ,BG90S-3Cr
3. High Collapse Casing pipe produced by our mills have good performance for the extremely deep and complex wells.
High Collapse Casing pipe
High Collapse (HC) grades exhibit higher collapse pressure than what is determined by API 5CT/ISO 11960 products.
We provides the High Collapse Series of proprietary steel grades for oil and gas wells where high external pressures are anticipated and collapse resistances higher than API are needed.
In addition to uniform external pressures, the reservoir can exert high pressures due to ground movements or saline strata, subjecting pipes to extreme localized external pressure.
Our mills have developed the high collapse casings such as: 80T, 90T, 95T, 110T, 125T, 80TT, 90TT, 95TT, 110TT, 125TT casings.
·Process control
1) To control strictly the inclusions in steel via the purity steel melting technology.
2) To control strictly the wall thickness and ovality of the tubes during the hot rolling.
3) To guarantee the yield strength and surface quality through the temperature and atmosphere control in the furnace during the heat treatment.
4) Through the second sizing and on line hot straightening after heat treatment, strictly control the residual stress, OD, ovality and staightness.
4. Oil casing pipe for thermal recovery well  

Variety Size  
Connection Standards Typical Applications
Thermal recovery well used
HS80H S/L/B/HSM-1/HSM-2/HSN HK29-2011
Or technical specification
Heavy oil and heat-resistance

New Product
1. Anti-Collapsing casing series 
High collapsing Series:CB80T、CB90T、CB110T、CB125T、CB130T、CB140T、CB150T、CB155T、CB160T
Super High collapsing Series:CB80TT、CB90TT、CB110TT、CB125TT、CB130TT、CB140TT、CB150TT、CB155TT、CB160TT
High collapsing + High Anti-Corrosion:CB80TS/CB80TSS、CB90TS/CB90TSS、CB95TS/CB95TSS、CB110TS/CB110TSS
According to the development of oil and gas wells, Chang Bao’s collapsing series casing has the following characteristics: 
Diameter is round and oval is little----- oval≤ 0.5%
Thickness is high accurate and distance is little ---- the same cross-section inequality is ≤ 9.5% 
Strength is high and performance is steady - Heat treatment is by quenching and tempering 
Low residual stress
Deep and super deep well
To separate rock salt layer and soft layer
Well with the H2S Corrosion condition
2. High and super high strength casing series 
Q125, CB130, CB140, CB150, CB155 Series
High impact toughness; 
Testing inside / outside surface of vertical / horizontal L2 level, 100% of WT test; Fitting and pipe body have high strength, and to ensure the internal pressure, external collapse resistance and the overall connection performance well.
Mainly used for deep and super deep oil and gas exploitation.
3. Anti-corrosion oil casing series 
Anti-H2S Corrosion OCTG Series: CB80S, CB90S, CB95S, CB110S
High Anti-H2S Corrosion OCTG Series: CB80SS, CB90SS, CB95SS, CB110SS
Low Cr anti-CO2 Corrosion OCTG Series: CB90-3Cr, CB95-3Cr, CB110-3Cr, CB125-3Cr
Low Cr anti-CO2+H2S Corrosion OCTG Series: CB80S-3Cr, CB90S-3Cr, CB95S-3Cr, CB110S-2Cr
Low Cr anti-CO2+High Anti-H2S Corrosion OCTG Series: CB80SS-3Cr, CB90SS-3Cr, CB95SS-3Cr 
High Cr anti-CO2 Corrosion OCTG Series: CB80-13Cr, CB110-13Cr
High Cr anti-CO2+H2S Corrosion OCTG Series: CB80S-13Cr, CB110S-13Cr
Steel purity - P ≤ 0.010%, S ≤ 0.006%; 
Performance is steady - all cross-sectional area of steel after quenching can receive more than 98% martensite, there will be fine even tempered sorbite organization after tempering 
Stress corrosion - to eliminate residual stress, surface corrosion of the structure to form one or several atomic layer of the high stability of alloy corrosion resistance group content of oxide film
Homogeneous - grain size ≥ 8 level, uniform hardness; 
Wells with CO2 corrosion condition. 
Wells with CO2+H2S corrosion condition
Wells with CO2+H2S+Cl- corrosion condition
4. Heavy oil thermal recovery pipes
CB80H, CB100H, CB110H Series
Performance of tensile under short-time high temperature condition is high. The decline of the performance is little with the temperature rising.
Used for prolonged heat exploitation under 350℃ working temperature,
5. Perforating gun barrel 
Self-development:25Mn2V, 30CrMo, 32CrMo4 Series
High precision control of product size, performance and stability
Used for the manufacture of oil and gas well perforating gun body.
R & D situation: 
Perforation barrel projects are used 25Mn2V, 32CrMo4 (30CrMo) material for trial, the results after testing, performance, size, testing are in line with set requirements
6. Water Injection Pipe
Low Cr anti CO2, Cl-, H2S corrosion of water injection oil casing series

Style Anti-CO2 corrosion performance Anti-H2S corrosion performance Connection strength with the body Anti-corrosion performance of connection General
Protective Coating Part corrosion Failed Bad Bad Good High
Plating Part corrosion Failed Bad Bad Good High
Stainless steel lining Part corrosion Failed Bad Bad Good High
Nitriding Depends on the thickness of nitrided layer Failed Good Depends on the thickness of nitrided layer Plastic
KWOMlow Cr product Adjustment according to condition Good General good Adjustment according to condition Good Depends on the alloy content

R & D situation: 
KWOMwater injection pipes have been successfully tested. The evaluation of test performance can meet the requirements of the conditions for sale
7. Anti- H2S corrosion line pipes
Product standards, steel grade: 
Standard:API SPEC 5L、ISO3183、GB/T9711
Steel Grade:L245NCS、L290NCS、L360NCS、L290QCS、L360QCS、L415QCS、L450QCS
According to the development needs of oil and gas wells, Chang Po H2S corrosion resistant line pipe has the following characteristics:
Pure steel, in which: P ≤ 0.015%, S ≤ 0.003%; performance and stability, the composition of the uniform
Transportation of oil and gas with H2S corrosion condition.
8. Premium connection series
Cooperative development: 
Premium connection characteristics: 
Considering the requirement of internal and international oil field, KWOMHQST1/HQSC1 premium connection has the following characteristics: 
High strength thread - buttress thread 
Good in sealing performance - double metal seal structure
Without vortex and erosion - the hole smooth transition
Coupling threads and sealing surface by the copper alloy treatment - anti-galling performance

Deep and super deep wells
High-pressure gas wells
Directional wells, wells and other structures requires complex formation connection strength and high sealing performance of oil and gas wells
Corrosion-resistant shaft
R & D situation 
KWOMHQST1 Connection :2-3 / 8 ",2-7 / 8" ,3-1 / 2 "tubing products have been successfully developing and debugging, with production capacity.
KWOMHQSC1 Connection: 5 ",5-1 / 2" casing products have been successfully developing and debugging, with production capacity.
KWOMHQXSC1 Connection: 5 "casing is in debit-based authentication .
Co-development of Premium connection. 
INTEG MAX Connection: 3-1/2 EU has been successful development and debugging, with production capacity. 
SUPER-MAX Connection: 2-7/8 NU has been successful development and debugging, with production capacity.
FLUSH-MAX Connection: 2-7/8 NU has been successful development and debuggin


SSAW、SMLS Method Out
Diameter Wall
Thickness Premium Threads APIC Threads Steel Grade Length Range Test
1.66 INCH ----  4 1/2 INCH     0.1 INCH ---- 1 INCH
Vam series ,  Hunting series,  Tenaris- Hydril series ,  JFE series  Round thread(8tpi, STC and LTC),   Buttress thread (5tpi, BTC)
J55/K55, N80-1, R95, M65, N80-Q, L80-1, L80-9Cr,  L80-13Cr, C90-1, T95-1, C110,  P110, Q125, V150   API STANDER  R1、 R2 、R3
NDT  Pressure Test  Third Party Certification  Non-destructive Thread Inspection  Hydrostatic test  Drifting Test  Chemical Analysis

OD: 1/4 inch-30 inch(13.7-762mm)
W.T: 3.0mm to 40 mm 
Length: 0.3-50M(Generally in 5.8/6 M or 11.8/12 M)
Part of project list:  
● Oil Line Pipe Project for PDVSA in Venezuela. (ERW)  
● Oil Pipeline Project for PEMEX in Mexico (LSAW)   
● Line Pipe Project for EIED & NIOC in Iran (SMLS & LSAW)  
● Line Pipe Project for KARADIAN STEEL in Spain (LSAW)  


Our main products are Line Pipe, OCTG, Boiler tube, Heat-exchanger Tube, Condenser Tube, Super-heater Tube, Hydraulic Honed Tube, Mechanical Tubing, Hollow Structural Section, Pipe Fittings and Pipe flanges with following standards: 
American standards:
API-5L PSL 1/PSL 2, AP 5CT, ASTM A53, ASTM A106, ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A252, ASTM A333, ASTM A335, ASTM A423, ASTM A500, ASTM A519, ASTM A524, ASTM A671, ASTM A672, ASTM A691, ASTM A795
DIN/EU Standards:
DIN 1626, DIN 1628, DIN 1629, DIN 1630, DIN 2391, DIN 2440, DIN 2441, DIN 2458, DIN 17175, DIN 10220, EN 10219-1, EN 10210-1, EN 10216-1/2/3, EN 10255 (BS1387, ISO 65), EN 10294-1, EN 10296-1, EN 10297-1
Japanese Standards:
JIS G3441, JIS G3442, JIS G3444, JIS G3445, JIS G3452, JIS G3454, JIS G3455, JIS G3456, JIS G3457,JIS G3458, JIS G3460, JIS G3461, JIS G3462, JIS G3464, JIS G3466, JIS G3467, JIS G3472, JIS G3473,JIS G3474, JIS G3475                        
Pipe Fittings standards: ASME B16.9, EN 10253-1/2
Pipe flanges standards: ANSI B16.5/B16.47, DIN, EN, JIS, SABS/SANS
We also can produce 3LPE, 3LPP, FBE, Liquid Epoxy, Zinc-rich Epoxy Primer coated Steel Pipe according to DIN 30670, DIN 30678, CSA Z245.20, EN 10339, ISO 21809-1, AWWA C210, AWWA C213 international standards.
Our Pipe and Tube Manufacturing Process:
1.  Seamless:
Hot-Rolled Outside Diameter: 10.3-1020mm;Wall Thickness: 1.73-100mm
Cold-Drawn:Outside Diameter: 6-220mm;Wall Thickness: 1-20mm
seamless pipe
2. Welded:
UOE/JCOE Longitudinal Welded (LSAW):Outside Diameter: 406.4-1422mm;Wall Thickness: 6.4-44.5mm
High Frequency Electric Resistance Welded (HFW/ERW) & Electric Fusion Welded (EFW):Outside Diameter: 21.3-508mm;Wall Thickness: 3.2-15.9mm
LSAW Pipe_1.jpg
LSAW Pipe_3.jpg
Inspection & Approval Certificates:
Mill Test Certificate, C/W Certificate (Calibration Works Certificate) EN 10204 3.1, DIN 50049 3.1, ISO 10474 3.1,NACE MR-0103/NACE MR-0175/ISO 15156, PED-97/23/EC, AD-2000-WO, with 3.2 certificate duly Certified &Approved by LRS, GL, BV, DNV, ABS, SGS, TUV, RINA, IRS, NORSOK, etc.
We provide product customization service such as: Shot Blasting, Precision Pipe Cutting, Cut and Roll Grooving,Custom pipe fabrication, Pipes Threading, Pipe Beveling, Coating.They are also approved by Third Party Inspection Agencies like DNV, BV, SGS, Moody, TUV, ABS,LR, GL, PED,RINA, KR, NKK, AIB-VINEOTTE, CEIL, VELOSI, CCSI, etc.
We supply for CEFC CHINA, PDVSA, PetroVietnam, PTT Thailand & Cambodia, PetroEcuador, PDO, KNPC, WSF, YPFB, AWH, HMC, etc.

Steel pipes
API-5L PSL1 Oil & Gas Transportation
API-5L PSL2 Oil & Gas Transportation
API-5CT oil Casing Pipe & Tubing
GB/T 8162-2008 Genaral Structure 
GB/T 8163-2008 Liquid Transportation
GB/T 3087-2008 Boiler Pipe
GB/T 5310-2008 High Pressure Boiler
GB/T 6479-2002 Chemical Equipment
ASTM Seamless Steel Pipe
API-5L PSL1 Oil & Gas Transportation
API-5L PSL2 Oil & Gas Transportation
GB/T 9711.1-2011 Oil & Gas Pipe 
GB/T 9711.2-2011 Oil & Gas Pipe
SY/T 5037-2000 Fluid Transportation
SY/T 5040-2000 Piling
ASTM Spiral Steel Pipe
API-5L PSL1 Oil & Gas Transportation
API-5L PSL2 Oil & Gas Transportation
API-5CT Oil Casing Pipe & Tubing
GB/T 9711.1-1997 Oil & Gas Pipe
GB/T 9711.2-1997 Oil & Gas Pipe
GB/T 3091-2008 Low Pressure Fluid
GB/T 3092-2008 Low Pressure Fluid
ASTM Erw Steel Pipe
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