ASTM A519 Grade 4130 Oil Drilling Pipe , Alloy Round Pipe for Drill
Rod Pipe
Description
This ASTM A519 Grade 4130 oil drilling pipe represents premium
chromium-molybdenum alloy tubing engineered for demanding drilling
applications. Manufactured as seamless round pipe through precision
cold drawing and heat treatment processes, it delivers exceptional
yield strength (minimum 100,000 psi) and superior torsional
resistance for heavy-duty drill rod applications.
The pipe's chemical composition provides optimal mechanical
properties including enhanced fatigue durability and excellent
impact resistance in aggressive downhole environments. Its seamless
construction ensures uniform wall thickness and dimensional
stability, critical for maintaining performance under extreme
compression loads and cyclic stresses during extended-reach
drilling operations.
Certified to ASTM A519 standards, each length undergoes rigorous
non-destructive testing to guarantee material integrity and
performance consistency. This drill pipe is specifically designed
for use in deep-well drilling, mineral exploration, and challenging
geological conditions where reliability and extended service life
are essential for operational efficiency and cost-effectiveness.
Specification
| Specifications | ASTM, ASME and API |
| Size | O.D.: 4 to 219mm W. T.: 0.5 to 20mm |
| Specialized in | Large Diameter Size |
| Length | Within 13500mm |
| Type | Seamless |
| Shape | Round |
| End | Plain End, Beveled End, Treaded |
Grade 4130 Pipe Chemical Composition
| Element | Content (%) |
| Iron, Fe | 97.03 – 98.22 |
| Chromium, Cr | 0.80 – 1.10 |
| Manganese, Mn | 0.40 – 0.60 |
| Carbon, C | 0.280 – 0.330 |
| Silicon, Si | 0.15 – 0.30 |
| Molybdenum, Mo | 0.15 – 0.25 |
| Sulfur, S | 0.040 |
| Phosphorous, P | 0.035 |
Grade 4130 Pipe Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength, ultimate | 560 MPa | 81200 psi |
| Tensile strength, yield | 460 MPa | 66700 psi |
| Modulus of elasticity | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus (Typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (Typical for steel) | 80 GPa | 11600 ksi |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 21.50% | 21.50% |
| Reduction of area | 59.6 | 59.60% |
| Hardness, Brinell | 217 | 217 |
| Hardness, Knoop (Converted from Brinell hardness) | 240 | 240 |
| Hardness, Rockwell B (Converted from Brinell hardness) | 95 | 95 |
| Hardness, Rockwell C (Converted from Brinell hardness, value below
normal HRC range, for comparison purposes only.) | 17 | 17 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 | 228 |
| Machinability (Annealed and cold drawn. Based on 100% machinability
for AISI 1212 steel.) | 70 | 70 |
Packing
In plywood case
Advantages
Exceptional Strength & Toughness: Handles extreme downhole
stresses.
Superior Fatigue Life: Resists failure from repeated cyclic loads.
Seamless Reliability: Homogeneous structure with no weld seams.
Optimized for HPHT Wells: Maintains performance in harsh
environments.
Application
Mine blasting
Water well drilling
Geothermal wells drilling
Fore poling
Coal
Nonferrous metal mining projects
