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{"title":"4130 Steel Seamless Steel Casing Oil Well Drilling Pipe with 30-139.7mm OD Range","imgUrl":"https:\/\/img.ismap.com\/nimg\/22\/2e\/5b73a14e1165bfd79c7c65ca3b89-200x200-1\/4130_steel_seamless_steel_casing_oil_well_drilling_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 Grade 4130 Seamless Cold Drawn Oil Drilling Pipe for Drill Rod","imgUrl":"https:\/\/img.ismap.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.ismap.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.ismap.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.ismap.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.ismap.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.ismap.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"}}
Stress relief annealing minimizes internal stresses from manufacturing, ensuring dimensional stability and preventing cracking during service
Proven Alloy Composition (4130 Steel)
Chromium-Molybdenum (Cr-Mo) alloy enhances:
Fatigue resistance (critical for cyclic loading in extended reach drilling)
Corrosion resistance (better than carbon steel in mildly aggressive fluids)
Weldability (simplifies field repairs/joints)
Ideal for Demanding Applications
Suitable for oil/gas well drilling, geothermal wells, and mineral exploration where high strength-to-weight ratio and reliability are paramount
Why Choose Our 4130 Drilling Pipes?
Higher Safety - Lower risk of failure under extreme pressures/temperatures
Cost-Effective - Balances performance and affordability compared to premium alloys (e.g., 4140)
Global Standards Compliance - Meets API and industry specifications for critical drilling operations
Chemical Composition
Steel Grade
C
Si
Mn
P
S
Cr
Mo
B
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
45MnMoB
0.43-0.48
0.17-0.37
1.05-1.35
≤0.020
≤0.015
0.20-0.25
0.001-0.005
1541
0.36-0.44
-
1.35-1.65
≤0.040
≤0.050
30CrMnSiA
0.28-0.34
0.90-1.20
0.80-1.10
≤0.020
≤0.015
0.80-1.10
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
45MnMoB
+ N
≥790
≥600
≥14%
-
1541
+ SR
≥813
≥690
≥15%
≥24
30CrMnSiA
QT
≥850
≥750
≥14%
26 - 31
Frequently Asked Questions
Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality. You need to in charge of Express costs.
How about your production capacity?
3000 tons/Month.
What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.
Where is your factory?
Zhangjiagang city, 1.5 hours away from Shanghai.
How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following, quotation will sent to you A.S.A.P:
Tube Standard
Steel Grade
Tube Size and Size Tolerance
Tube length
Quantity
If any special requirements
How about the minimum order quantity?
Normally for one size above 1 ton.
Welcome to contact us! Thanks.
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...
