製品詳細
起源の場所: 中国
ブランド名: HONGBAO
証明: PED, ISO9001, DNV
モデル番号: HG-OP
支払いと送料の条件
最小注文数量: 1mt
価格: negotiable
パッケージの詳細: 必要に応じて
受渡し時間: 交渉可能
支払条件: L/C、T/T
供給の能力: 3000mt/月
材料: |
30crmo （4130/34crmo4）、42crmo （4140/42crmo4）、40mn2、45mnmob、30crmnsia、4135、1541 |
標準: |
GB/T 9808、ASTM A519、DIN2391、EN10305-1、 |
外径範囲: |
30-139.7mm |
重量の範囲: |
3-19mm |
処理: |
コールドローリング |
色: |
黒 |
材料: |
30crmo （4130/34crmo4）、42crmo （4140/42crmo4）、40mn2、45mnmob、30crmnsia、4135、1541 |
標準: |
GB/T 9808、ASTM A519、DIN2391、EN10305-1、 |
外径範囲: |
30-139.7mm |
重量の範囲: |
3-19mm |
処理: |
コールドローリング |
色: |
黒 |
1. Cost-Effective Champion
Lower alloy cost (no Cr/Mo like 4140) → 20–30% cheaper than high-end grades.
Simplified heat treatment (normalized only) → Reduced processing expenses.
Perfect for budget-sensitive, conventional wells.
2. Reliable Strength for Standard Wells
Tensile: 800–950 MPa, Yield: 600–750 MPa → Matches 4130 baseline, sufficient for wells ≤3,000m & medium pressure.
Elongation ≥16% → Balanced toughness, avoids brittle failure in routine operations.
Outperforms low-carbon steel, no overkill for common depths.
3. Easy to Weld & Maintain
Excellent weldability → No preheating/post-weld heat treatment needed for field connections.
Good machinability → Faster threading/end finishing.
Save time & labor costs on-site.
4. Versatile for Common Formations
Ideal for soft-to-medium-hard strata (sandstone, shale, clay) with low abrasion risk.
Fits vertical wells, shallow gas storage, or exploration holes.
One tough solution for diverse routine drilling.
Why 1541?
Cheaper than 4140/4130, but tougher than basic carbon steel.
No premium features needed? 1541 delivers reliable performance at lower cost.
(Upgrade to 4140 for ultra-deep/high-pressure wells; 1541 is your best bet for everyday efficiency.)
Key Contrast (vs 4140/4130):
|
Feature |
1541 Grade |
4140 Grade |
4130 Grade |
|---|---|---|---|
| Cost | Lowest (no Cr/Mo) | High (Cr/Mo alloy) | Medium (Cr/Mo alloy) |
| Strength | Good (routine wells) | Best (deep/high-pressure) | Moderate (baseline) |
| Weldability | Excellent (simple) | Good (needs control) | Good (needs control) |
| Best For | Shallow/medium wells | Ultra-deep/complex wells | Mid-range wells |
Delivery Condition:
Stress Relief Annealing after Cold Working (+SR) (BKS)
Normalizing (+N) (NBK)
Quenching & Tempering (QT)
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 |
| 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 |
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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