4130 Steel
AISI/SAE 4130 steel is a medium carbon specialty alloy steel with exceptional hardenability characteristics making it quite versatile from a mechanical property standpoint. 4130 steel is used as-rolled, annealed, normalized, or quench, and tempered for various applications. It can be readily machined and offers good strength and ductility without compromising abrasion and impact resistance. 4130 steel has superb ductility when spheroidized annealed- low yield to tensile ratio offers good formability characteristics in a stamping press for example. 4130 also offers good atmospheric corrosion resistance due to the addition of Cr.
As a 4130 steel supplier, Siegal Steel will be happy to source 4130 slit coil for you in the as-rolled or annealed condition for your application.
Physical Properties
4130 is part of the 4100 series family of steels with approximately 1% molybdenum/chromium by mass. Exact chemical breakdowns will vary by mill but will fall within the following ranges:
- 28 – 0.33% Carbon
- 80 – 1.10% Chromium
- 40 – 0.60% Manganese
- 15 – 0.25% Molybdenum
- ≤030% Phosphorus
- 15 – 0.35% Silicon
- ≤ 0.04% Sulphur
|
Property |
Typical Metric |
|
~Ultimate Tensile Strength (spheroidize anneal) |
65-80ksi (450-550MPa) / 85HRB max hardness |
|
~As rolled/normalized |
85-110ksi (590-760MPa) / 88-98HRB hardness |
|
~Quench and tempered |
Up to 200ksi (1375MPa) / Up to 42HRC hardness |
|
~Yield Strength (spheroidize anneal) |
45-60ksi (310-415MPa) |
|
~As rolled/normalized |
65-85ksi (450-590MPa) |
|
~Elongation at Break in 2in (50mm) |
20-30% |
|
~As rolled/normalized |
10-20% |
|
CEV (carbon equivalent) |
.54-.70 |
4130 Steel Coil Industries
4130 steel performs best as structural steel and is vital to manufacturing, welding, cutting, and other high-stress, high-temperature applications. It is commonly used in the following industries:
- Automotive
- Aerospace
- Oil & Gas
- Agriculture
- Defense
4130 Steel Coil Applications
For applications such as:
- Manufacturing equipment
- Mills and cutters
- Drill bits and taps
- Aircraft brake components
- Clutch plate
- Door latch
- Gears
Why Siegal?
Siegal Steel has a rich history of excellent customer service and product quality, with a range of processing capabilities and value-added services. Our mission is to help our customers find the most cost-effective and beneficial solutions to whatever problems they’re facing; Siegal Steel is your solution-providing partner. Contact us today!
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