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> 상품 > 석유 시추 파이프 > 73mm / 89mm Forged One Piece Cold Drawn 4140 HDD Drill Pipe For Trechless Drilling

73mm / 89mm Forged One Piece Cold Drawn 4140 HDD Drill Pipe For Trechless Drilling

제품 세부 정보

원래 장소: 중국

브랜드 이름: HONGBAO

인증: PED, ISO9001,DNV

모델 번호: HG-OP

지불 및 배송 조건

최소 주문 수량: 1mt

가격: negotiable

포장 세부 사항: 필요에 따라

배달 시간: 협상 가능

지불 조건: 신용장, 전신환

공급 능력: 3000mt/월

최고의 가격을 얻으십시오
강조하다:
강철 등급:
42CrMo
실행 표준:
ASTM A519, DIN2391, EN10305-1
OD 범위:
30-139.7mm
WT 범위:
3-19mm
강철 등급:
42CrMo
실행 표준:
ASTM A519, DIN2391, EN10305-1
OD 범위:
30-139.7mm
WT 범위:
3-19mm
73mm / 89mm Forged One Piece Cold Drawn 4140 HDD Drill Pipe For Trechless Drilling
73mm / 89mm Forged One-Piece Cold-Drawn HDD Drill Pipe for Trenchless Drilling
 
Designed for the rigors of modern trenchless technology, our 73mm/89mm Forged One-Piece Cold-Drawn HDD Drill Pipes​ deliver uncompromising strength, precision, and durability for horizontal directional drilling (HDD) applications. Engineered to excel in complex underground environments—from urban utility installation to long-distance pipeline routing—these pipes are the backbone of efficient, low-disruption drilling operations.
 
Crafted from high-strength alloy steel​ (e.g., 42CrMo or equivalent), the drill pipes undergo a forged one-piece manufacturing process​ to eliminate weld seams, a critical weakness in multi-piece designs. This seamless structure, combined with cold-drawing technology, ensures exceptional dimensional accuracy (outer diameter tolerance ±0.1mm, straightness ≤0.3mm/m) and a smooth inner surface (Ra ≤1.6μm), reducing friction and torque loss during drilling. The cold-drawing process also refines the steel’s grain structure, enhancing tensile strength (≥1100 MPa) and yield strength (≥950 MPa) to withstand extreme axial loads, torsional stress, and abrasive geological conditions (e.g., hard rock, gravel, or clay).
 
Key Features & Benefits:
1.Forged One-Piece Construction: No welds = no weak points. Resists fatigue cracking and torsional failure in long-reach or high-torque drilling (max torque capacity: 25,000 N·m for 89mm, 15,000 N·m for 73mm).
2.Cold-Drawn Precision: Tight tolerances and smooth bores minimize fluid resistance, improve mud flow efficiency, and extend tool joint life.
3.Corrosion & Wear Resistance: Optional surface treatments (e.g., nitriding, phosphate coating) protect against mud chemicals and abrasive wear, ideal for high-salinity or rocky formations.
4.Size Versatility: Available in 73mm (2-7/8") and 89mm (3-1/2") outer diameters, with lengths from 3m to 6m (customizable), fitting most HDD rigs and drill string configurations.

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 Condition:

 

1. Stress Relief Annealing after Cold Working (+SR) (BKS)

2. Normalizing (+N) (NBK)

3. Quenching & Tempering (QT)

 

73mm / 89mm Forged One Piece Cold Drawn 4140 HDD Drill Pipe For Trechless Drilling 0

 

FAQ:

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.

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