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Product Description: 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. It is a versatile alloy with good atmospheric corrosion resistance and reasonable strength, showing good overall combinations of strength, toughness, and fatigue strength.
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Standards
- 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 (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 |
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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 | 0.22-0.29 | 0.60-0.90 | 0.025 | 0.035 | <=0.40 | 0.90-1.2 | 0.15-0.30 |
| SCM430 | 0.28-0.33 | 0.60-0.85 | 0.030 | 0.030 | 0.15-0.35 | 0.90-1.2 | 0.15-0.30 |
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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.
- Certifications: BV, SGS
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Dimensions & Package
Outer Diameter: 21 to 426 mm | Wall Thickness: 2 to 50 mm | Length: Up to 12 m.
Package: All pipes marked, oil-coated, and capped with plastic end protectors. Plain end finish.
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Tests Applied
- Chemical Composition Analysis
- Mechanical Properties (Tensile, Yield, Elongation, Hardness)
- Technological Test (Flattening, Flaring, Bending, Hydraulic)
- Surface Quality Detection
- Eddy-current Examination
- Visual Test
Frequently Asked Questions
Q1: What are the primary characteristics of 4130 alloy steel?
A1: 4130 is a low-alloy steel containing chromium and molybdenum. It offers excellent strength, toughness, weldability, and machinability, making it ideal for high-stress applications.
Q2: Which international standards do these tubes comply with?
A2: The tubes comply with ASTM A519 (USA), EN 10216-2, EN 10305-1, and EN 10297-1 (European standards).
Q3: What are the available delivery conditions?
A3: We offer several conditions including Cold Worked (C), Stress Relieved (SR), Annealed (A), and Normalized (N).
Q4: What is the size range for the ASTM A519 4130 tubes?
A4: We provide outer diameters from 21mm to 426mm and wall thicknesses from 2mm to 50mm, with lengths up to 12 meters.
Q5: Do you support third-party quality inspections?
A5: Yes, we accept third-party inspections from recognized agencies such as SGS and BV to ensure material compliance.
Q6: What specific tests are performed to ensure tube quality?
A6: Comprehensive testing includes chemical analysis, mechanical property testing (tensile/hardness), technological tests (flattening/flaring), and non-destructive eddy-current examinations.
Tag: ASTM A519 4130, mechanical tube, steel tube, steel pipe 4130 tube, 4130 pipe, astm a519, astm a519 1026
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