Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Seamless Chromoly Steel Tubing for Oil Drilling Pipe with High Yield Strength","imgUrl":"https:\/\/img.chinax.com\/nimg\/22\/18\/cca75dd35330e6cda4e4b93ff399-200x200-1\/seamless_chromoly_steel_tubing_for_oil_drilling_pipe_with_high_yield_strength.jpg","attrs":{"Brand Name":"HONGBAO","Model Number":"HG-OP","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"ASTM A519 Grade 4130 Seamless Cold Drawn Oil Drilling Pipe for Drill Rod","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/df\/5d1b3d834458e11174a41e54a4c0-200x200-1\/astm_a519_grade_4130_seamless_cold_drawn_oil_drilling_pipe_for_drill_rod_applications.jpg","attrs":{"Brand Name":"Hongbao","Model Number":"HBOWD-1","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"DIN2391 Standard 1541 Steel Grade Seamless Steel Tube Drill Rod for Oil Well","imgUrl":"https:\/\/img.chinax.com\/nimg\/b1\/3e\/245e211a71e5af9f12f380e17a74-200x200-1\/din2391_standard_1541_steel_grade_seamless_steel_tube_drill_rod_for_oil_well_drilling_with_cold_rolling_processing.jpg","attrs":{"Brand Name":"HONGBAO","Model Number":"HG-OP","Certification":"PED, ISO9001, DNV","Place of Origin":"China"}}
{"title":"EN10305-1 Standard 45MnMoB Grade Seamless Steel Oil Well Drill Pipe with 30-139","imgUrl":"https:\/\/img.chinax.com\/nimg\/a8\/6e\/367b84f703eb04aa7894bf699915-200x200-1\/en10305_1_standard_45mnmob_grade_seamless_steel_oil_well_drill_pipe_with_30_139_7mm_od_range.jpg","attrs":{"Brand Name":"HONGBAO","Model Number":"HG-OP","Certification":"PED, ISO9001, DNV","Place of Origin":"China"}}
{"title":"ASTM A519 4130 Oil Well Drilling Pipe with High Strength-to-Weight Ratio and","imgUrl":"https:\/\/img.chinax.com\/nimg\/41\/76\/f1a2c208d2ab47244015529fb980-200x200-1\/astm_a519_4130_oil_well_drilling_pipe_with_high_strength_to_weight_ratio_and_exceptional_toughness.jpg","attrs":{"Brand Name":"Hongbao","Model Number":"HBOWD-7","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"30CrMo Seamless Oil Well Drilling Pipe with Superior Mechanical Properties, High","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/c9\/206b44da91df218f7efa56602400-200x200-1\/30crmo_seamless_oil_well_drilling_pipe_with_superior_mechanical_properties_2c_high_tensile_strength_2c_and_corrosion_resistance.jpg","attrs":{"Brand Name":"Hongbao","Model Number":"HBOWD-2","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"4140 Seamless Steel Oil Well Drilling Pipe with High Straightness and Quenched &","imgUrl":"https:\/\/img.chinax.com\/nimg\/63\/9e\/2056f4f095d39d45637e2fb2993a-200x200-1\/4140_seamless_steel_oil_well_drilling_pipe_with_high_straightness_and_quenched_26_tempered_for_durability.jpg","attrs":{"Brand Name":"HONGBAO","Model Number":"HG-OP","Certification":"PED, ISO9001,DNV","Place of Origin":"China"}}
This high-performance chromoly steel tubing represents a premium series of oil well drilling pipes manufactured from AISI 4130, 4140, and 4145 alloy steels, specifically engineered for demanding casing applications in the oil and gas industry. These seamless chromoly tubes offer superior mechanical properties and enhanced performance characteristics compared to conventional carbon steel pipes, making them ideal for critical downhole operations where reliability and durability are essential.
The triple-grade composition provides engineers with optimized material selection based on specific well requirements: AISI 4130 offers excellent strength with good weldability, AISI 4140 delivers enhanced strength and wear resistance, while AISI 4145 provides the highest strength and hardness for the most demanding applications. All three grades feature chromium-molybdenum alloying elements that contribute to their superior tensile strength, exceptional toughness, and improved fatigue resistance in challenging downhole environments.
Manufactured through advanced seamless extrusion processes, these drilling pipes maintain precise dimensional accuracy and wall thickness consistency throughout their length. The heavy-wall construction ensures maximum collapse resistance and structural integrity when deployed as casing strings in deep well, high-pressure, and high-temperature applications. Each grade undergoes specific heat treatment processes - including quenching and tempering - to achieve optimal mechanical properties tailored to their respective chemical compositions.
Specification
Specifications
Details
Standards
ASTM, ASME and API
Size
O.D.: 4 to 219mm W. T.: 0.5 to 20mm
Specialized in
Large Diameter Size
Length
Within 13500mm
Type
Seamless
Shape
Round
End
Plain End, Beveled End, Threaded
Chemical Composition
Steel Grade
C
Si
Mn
P
S
Cr
Mo
4130
0.28-0.33
0.15-0.35
0.40-0.60
≤0.040
≤0.040
0.80-1.10
0.15-0.25
4140
0.38-0.43
0.15-0.35
0.75-1.00
≤0.040
≤0.040
0.80-1.10
0.15-0.25
Mechanical Properties
Steel Grade
Deliver Condition
Tensile Strength (Mpa)
Yield Strength (Mpa)
Elongation (%)
Hardness (HRC)
4130
+ SR
≥813
≥690
≥15%
≥24
4140
QT
≥950
≥850
≥14%
28 - 33
Key Features and Benefits
Superior Mechanical Properties: High yield strength (550-950 MPa) and excellent impact toughness
Improved Fatigue Performance: Excellent resistance to cyclic loading and vibration stresses
Multiple Grade Options: Tailored material selection for specific well conditions
Seamless Construction: Homogeneous microstructure without weld defects
Quality Assurance
Full traceability and material certification
Ultrasonic testing for defect detection
Hydrostatic pressure testing
Dimensional and visual inspection
Hardness testing and mechanical property verification
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
>76000000
Employee Number:
700~1000
Ecer Certification：
Verified Supplier
Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...
