Starc Metals is your go-to manufacturer and supplier of Carbon Steel Spring Bars and Rods right here in Canberra, Australia. We pride ourselves on delivering top-notch carbon steel products that are built for exceptional strength, resilience, and durability. Our Carbon Steel Spring Bars and Rods are crafted to provide outstanding elasticity, making them perfect for applications that demand high fatigue resistance and the ability to bounce back to their original shape after being deformed. At Starc Metals, we focus on precision manufacturing, consistent mechanical performance, and strict adherence to global quality standards, ensuring our products are ready for industrial, automotive, and engineering uses.
When it comes to the makeup of our Carbon Steel Spring Bars and Rods, you’ll typically find carbon (0.50–1.00%), manganese (0.60–1.00%), silicon, along with trace amounts of sulfur and phosphorus. This blend gives our products impressive tensile strength (between 700–1200 MPa) and excellent yield strength, which translates to remarkable fatigue resistance and toughness. Plus, the material can be heat-treated to achieve the perfect balance of hardness and flexibility, ensuring it performs exceptionally well under dynamic loads while keeping its structural integrity and wear resistance intact.
|
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.
You’ll find Carbon Steel Spring Bars and Rods in a variety of applications, from springs and fasteners to clips, automotive suspension components, and parts for industrial machinery. They’re also utilized in railway systems, agricultural equipment, and construction tools that need to withstand high strength and absorb shocks. With their fantastic machinability, formability, and elasticity, they’re well-suited for both static and cyclic load applications. Starc Metals’ Carbon Steel Spring Bars and Rods offer durability, performance, and reliability, making them the perfect choice for heavy-duty and precision-engineered components.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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