📋 Basic Information
Technique
Hot-Rolled+Cold-Drawn
Surface Treatment
as Required
Mtc
3.1 or 3.2 Certificate
Delivery Condition
N, Q, T
Transport Package
Seaworthy Standard Package
Production Capacity
50000tons/Year
⚙️ ASTM A519 4130 Mechanical Tubes
4130 Steel Introduction
AISI or SAE 4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. The steel has good strength and toughness, weldability and machinability.
AISI/SAE 4130 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. It shows good overall combinations of strength, toughness, and fatigue strength.
Standards Compliance
✔ EN 10216-2: 2014 Seamless steel tubes for pressure purposes.
✔ EN 10305-1: 2010 Steel tubes for precision applications. Seamless cold drawn tubes.
✔ EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes.
Equivalent Grades of Steel 25CrMo4 (1.7218)
| EU |
USA |
Germany |
Japan |
France |
England |
Italy |
| EN |
- |
DIN, WNr |
JIS |
AFNOR |
BS |
UNI |
| 25CrMo4 |
SAE 4130 |
25CrMo4 |
SCM420 |
25CD4 |
708A25 |
25CrMo4 |
🔬 Chemical Composition
| Grade |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
| 4130 |
0.28-0.33 |
0.40-0.60 |
0.035 |
0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
| 25CrMo4 / 1.7218 |
0.22-0.29 |
0.60-0.90 |
0.025 |
0.035 |
<=0.40 |
0.90-1.2 |
0.15-0.30 |
| SCM430 / SCM2 |
0.28-0.33 |
0.60-0.85 |
0.030 |
0.030 |
0.15-0.35 |
0.90-1.2 |
0.15-0.30 |
📊 Technical Parameters
🔹 Standard: ASTM A519
🔹 Grade: 1020, 1045, 4130, 4140
🔹 Tolerance: ±0.05
🔹 Process: Cold Rolled / Cold Drawn
🔹 Delivery Condition: Cold worked, Annealed, Normalized, Stress Relieved etc.
🔹 Certification: BV, SGS
Dimensions and Tolerances
Outer diameter: 21 to 426 mm, wall thickness: 2 to 50 mm, length: Not more than 12 m.
Delivery Condition
Cold Worked, Stress Relieved, Annealed, Normalized.
Package Details
All pipes shall be marked, coated with oil and capped with plastic end protector. All items shall be plain end.
Our Services
⭐ Third Party inspection acceptable, such as SGS, BV etc.
⭐ Supplying financial support with usance L/C 180 days after B/L date.
🔍 Quality Tests Applied
1. Chemical Composition Analysis
2. Mechanical Properties (Tensile, Yield, Elongation, Hardness)
3. Technological Test (Flattening, Flaring, Bending, Hydraulic)
4. Surface quality detection
5. Eddy-current examination
6. Visual test
Tags: ASTM A519 4130, mechanical tube, steel tube, steel pipe 4130 tube, 4130 pipe, astm a519, astm a519 1026
Frequently Asked Questions
What are the primary characteristics of 4130 alloy steel?
AISI 4130 is a low-alloy steel containing chromium and molybdenum. It is known for its excellent strength, toughness, weldability, and machinability, making it ideal for mechanical and general engineering purposes.
Which international standards do your 4130 tubes comply with?
Our tubes meet various international standards including ASTM A519, EN 10216-2 (pressure purposes), EN 10305-1 (precision applications), and EN 10297-1 (mechanical and general engineering).
What range of dimensions is available for these mechanical tubes?
We offer a wide range of sizes with outer diameters from 21mm to 426mm and wall thicknesses from 2mm to 50mm. The maximum length available is 12 meters.
What delivery conditions can be requested for the steel pipes?
Depending on your application requirements, we can provide tubes in various conditions: Cold Worked, Stress Relieved, Annealed, or Normalized.
How is the quality of the 4130 mechanical tubes ensured?
Every tube undergoes rigorous testing, including chemical composition analysis, mechanical property tests (tensile, yield, hardness), technological tests (flattening, flaring), eddy-current examination, and visual inspection. Third-party inspections by SGS or BV are also welcome.
What is the standard packaging for seaworthy transportation?
All pipes are coated with anti-rust oil, marked clearly, and capped with plastic end protectors to ensure they remain in perfect condition during transit.
Dactron Pipe
