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{"title":"ASTM A519 30CrMo Cold Drawn Seamless Drill Rod Tube with Low Eccentricity for","imgUrl":"https:\/\/img.chinax.com\/nimg\/a6\/5f\/6e1b6c356d39c792d6a1183b1aa8-200x200-1\/astm_a519_30crmo_cold_drawn_seamless_drill_rod_tube_with_low_eccentricity_for.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.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"}}
Engineered for conventional to mid-depth oilfield wells, 4130 grade drilling pipe delivers optimal strength, weldability, and cost efficiency - making it the reliable choice for diverse drilling operations.
Key Features & Benefits
Balanced High Strength - Tensile strength ≥813 MPa, Yield strength ≥690 MPa - Provides reliable load-bearing capacity for medium-depth wells (≤3,000m) and standard pressure conditions (≤35 MPa), ensuring structural integrity during drilling.
Superior Weldability - Low carbon content with chromium-molybdenum (Cr-Mo) alloying - Enables easy field welding (minimal preheat/post-weld heat treatment required) while maintaining toughness, ideal for on-site casing connections or repairs.
Controlled Toughness & Ductility - Elongation ≥15% - Absorbs dynamic loads (e.g., bit vibration, pressure fluctuations) and resists brittle fracture, ensuring operational safety in varied well conditions.
Cost-Effective Performance - Moderate alloy cost (Cr-Mo optimized) - Delivers premium-grade strength at a lower price point than 4140, balancing performance and budget for conventional to mid-range wells.
Proven Reliability - Widely used in onshore/offshore conventional wells, water wells, and geothermal projects - Backed by decades of field performance in stable to moderately complex formations.
Why Choose 4130 Grade?
Versatile Mid-Range Performance - Ideal for wells ≤3,000m with standard pressure/temperature, avoiding over-engineering of high-end grades (e.g., 4140).
Weld-Friendly & Easy to Maintain - Simplifies field operations (e.g., welding, threading) without sacrificing strength, reducing downtime and costs.
Better Than Carbon Steel - Outperforms basic carbon steels (e.g., 1541) in strength, fatigue resistance, and corrosion resistance (mild environments).
Applications
Suitable for mine blasting, water well drilling, geothermal well drilling, fore poling, and mining of coal and nonferrous metals.
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
Delivery Conditions
Stress Relief Annealing after Cold Working (+SR) (BKS)
Normalizing (+N) (NBK)
Quenching & Tempering (QT)
Frequently Asked Questions
1. 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.
2. How about your production capacity?
3000 tons/Month.
3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.
4. Where is your factory?
Zhangjiagang city, 1.5 hours away from Shanghai.
5. 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:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements
6. 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...
