Isis Metals is a trusted manufacturer and supplier of **Carbon Steel Spring Bars and Rods** located in Manila, Philippines. They specialize in high-quality carbon steel products that are designed for exceptional strength, flexibility, and resistance to fatigue. Thanks to their advanced production methods and rigorous quality checks, Isis Metals guarantees that every spring bar and rod meets international standards for durability and performance. These products are built to handle heavy loads and repeated stress, making them perfect for dynamic applications in the automotive, industrial, and mechanical sectors. With a reputation for precision-engineered carbon steel solutions, Isis Metals is a go-to choice in the Philippines and beyond for long-lasting reliability.
**Carbon Steel Spring Bars and Rods** mainly consist of carbon (0.50–0.70%), silicon (1.50–2.00%), and manganese (0.60–1.00%), with small amounts of chromium and vanadium added to boost strength and elasticity. This blend strikes a great balance between hardness, toughness, and fatigue resistance. Typically, the material has a tensile strength ranging from 700–900 MPa and can be heat-treated to enhance its spring properties. Its impressive resilience and ability to bounce back after deformation make it perfect for applications that require energy absorption and flexibility under stress.
|
Steel Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
B |
Cu |
Mo |
V |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
55 |
0.52-0.60 |
0.50-0.80 |
0.17-0.37 |
0.035 max |
0.035 max |
0.25 max |
0.30 max |
/ |
0.25 max |
/ |
/ |
|
65 |
0.62-0.70 |
0.50-0.80 |
0.17-0.37 |
0.035 max |
0.035 max |
0.25 max |
0.25 max |
/ |
0.25 max |
/ |
/ |
|
70 |
0.62-0.75 |
0.50-0.80 |
0.17-0.37 |
0.035 max |
0.035 max |
0.25 max |
0.25 max |
/ |
0.25 max |
/ |
/ |
|
75 |
0.72-0.80 |
0.50-0.80 |
0.17-0.37 |
0.035 max |
0.035 max |
0.25 max |
0.30 max |
/ |
0.25 max |
/ |
/ |
|
85 |
0.95-1.04 |
0.40 max |
0.35 max |
0.025 max |
0.025 max |
/ |
/ |
/ |
/ |
/ |
/ |
|
65Mn |
0.62-0.70 |
0.90-1.20 |
0.17-0.37 |
0.035 max |
0.035 max |
0.25 max |
0.25 max |
/ |
0.25 max |
/ |
/ |
|
60Si2Mn |
0.56-0.64 |
0.70-1.00 |
1.50-2.00 |
0.035 max |
0.035 max |
0.35 max |
0.25 max |
/ |
0.25 max |
/ |
/ |
|
50CrVA |
0.46-0.54 |
0.50-0.80 |
0.17-0.37 |
0.025 max |
0.025 max |
0.80-1.10 |
0.35 max |
/ |
0.25 max |
/ |
0.10-0.20 |
|
55SiCrA |
0.51-0.59 |
0.50-0.80 |
1.20-1.60 |
0.025 max |
0.025 max |
0.50-0.80 |
0.35 max |
/ |
0.25 max |
/ |
/ |
|
60Si2CrA |
0.56-0.64 |
0.40-0.70 |
1.40-1.80 |
0.025 max |
0.025 max |
0.70-1.00 |
0.35 max |
/ |
0.25 max |
/ |
/ |
|
Steel Grade |
Tensile Strength Rm (Mpa) |
Yield Strength Rp0.2 (Mpa) |
Elongation A5 (%) |
Area Reduction Ratio C (%) |
|---|---|---|---|---|
|
65 |
980 min |
785 min |
9 min |
35 min |
|
70 |
1030 min |
835 min |
8 min |
30 min |
|
85 |
1130 min |
980 min |
6 min |
30 min |
|
65Mn |
980 min |
785 min |
8 min |
30 min |
|
60Si2Mn |
1275 min |
1180 min |
5 min |
25 min |
|
50CrVA |
1275 min |
1130 min |
10 min |
40 min |
|
55SiCrA |
1450-1750 |
1300 min |
6 min |
25 min |
|
60Si2CrA |
1765 min |
1570 min |
6 min |
20 min |
When selecting carbon steel spring bars, consider factors like the required strength, durability, and fatigue resistance for the specific application. Also, evaluate the environment's corrosion potential and the bar's ability to retain spring properties over time.
Carbon steel spring bars are generally not suitable for cryogenic applications due to their reduced toughness and brittleness at extremely low temperatures. Materials like stainless steel or special alloys are preferred for such conditions.
Carbon steel spring rods are available in various sizes, typically ranging from 1/4 inch to several inches in diameter, with lengths varying based on application requirements. Custom sizes can be manufactured to meet specific load, stress, or design needs.
**Carbon Steel Spring Bars and Rods** find their place in industries that need high strength and resistance to repeated stress. They are commonly used to manufacture leaf springs, coil springs, torsion bars, and suspension components in the automotive and transportation sectors. In industrial machinery, they serve as tools, fasteners, and mechanical parts that face cyclic loads. Moreover, these bars and rods are utilized in agricultural equipment, construction machinery, and defense applications. Their outstanding elasticity, toughness, and wear resistance make Carbon Steel Spring Bars and Rods the preferred choice for high-performance mechanical and engineering applications.














We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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