DIN2391 Seamless Steel Tube Drill Rod 1541 Steel Grade Oil Well Drilling Pipe With Casting Tube

1541 Grade Drilling Pipe: Comparative Advantages​​

​​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):​​

Delivery Condition:

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

Normalizing (+N) (NBK)

Quenching & Tempering (QT)

Chemical Composition