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घर > उत्पादों > तेल कुएं पाइप > GB/T 9808 Seamless Steel Oil Drilling Pipe 34CrMo4 Steel Coupling Tube with Low Residual Hoop Stresses

GB/T 9808 Seamless Steel Oil Drilling Pipe 34CrMo4 Steel Coupling Tube with Low Residual Hoop Stresses

उत्पाद का विवरण

उत्पत्ति के प्लेस: चीन

ब्रांड नाम: HONGBAO

प्रमाणन: PED, ISO9001,DNV

मॉडल संख्या: एचजी-ओप

भुगतान और शिपिंग की शर्तें

न्यूनतम आदेश मात्रा: 1MT

मूल्य: negotiable

पैकेजिंग विवरण: आवश्यकता अनुसार

प्रसव के समय: बातचीत योग्य

भुगतान शर्तें: एल/सी, टी/टी

आपूर्ति की क्षमता: 3000MT/महीना

सबसे अच्छी कीमत पाएं
प्रमुखता देना:

seamless steel oil drilling pipe

,

34CrMo4 steel coupling tube

,

low residual hoop stress pipe

इस्पात श्रेणी:
30CRMO, 42CRMO, 30CRMNSIA, 40MN2, 45MNMOB, 30CRMNSIA, 4135, 1541
निष्पादन मानक:
ASTM A519, DIN2391, EN10305-1, GB/T 9808
ओडी रेंज:
30-139.7 मिमी
डब्ल्यूटी रेंज:
3-19 मिमी
प्रसंस्करण:
कोल्ड रोल, ठंडा खींचा
रंग:
काला
इस्पात श्रेणी:
30CRMO, 42CRMO, 30CRMNSIA, 40MN2, 45MNMOB, 30CRMNSIA, 4135, 1541
निष्पादन मानक:
ASTM A519, DIN2391, EN10305-1, GB/T 9808
ओडी रेंज:
30-139.7 मिमी
डब्ल्यूटी रेंज:
3-19 मिमी
प्रसंस्करण:
कोल्ड रोल, ठंडा खींचा
रंग:
काला
GB/T 9808 Seamless Steel Oil Drilling Pipe 34CrMo4 Steel Coupling Tube with Low Residual Hoop Stresses

​​4130 Grade Drilling Pipe – Reliable Strength & Weldability for Standard Oilfield Wells​​
​​      A versatile, cost-effective solution for conventional drilling​​, 4130 grade drilling pipe combines ​​balanced mechanical strength, excellent weldability, and durable performance​​ to meet the needs of standard oilfield operations.

 

​​Key Advantages​​
1. Proven Strength​​ – Tensile strength ≥813 MPa, yield strength ≥690 MPa for reliable operation in ​​wells up to 3,000m depth and moderate pressures​​.

 

2. ​​Easy Welding​​ – Low-carbon, chromium-molybdenum (Cr-Mo) alloy allows ​​field welding with minimal preheat​​, saving time and costs.

 

3. ​​Tough & Durable​​ – 15% elongation absorbs vibrations and shocks, reducing crack risks in daily drilling.

 

4. ​​Cost-Effective​​ – Affordable alloy mix (Cr-Mo optimized) delivers ​​high performance at a lower cost than premium grades​​.

 

5. ​​Widely Used​​ – Trusted in conventional oil/gas wells, water wells, and geothermal projects worldwide.

 

​​Ideal for:​​ Standard-depth wells (≤3,000m), moderate pressures, and operations needing strong, weldable pipes.

 

​​Upgrade to 4140 for extreme depths; choose 1541 for budget-first shallow wells.​

 

Applications include fore poling (advance support), mine blasting, water well drilling, geothermal well drilling, and coal/nonferrous metal mining.​​

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)

 

GB/T 9808 Seamless Steel Oil Drilling Pipe 34CrMo4 Steel Coupling Tube with Low Residual Hoop Stresses 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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