Carbon Steel Spring Bar and Rod

Hemi Metals, based right here in Hamilton, is a name you can trust for robust and reliable steel solutions. Supplying quality materials across New Zealand, we bring a practical, hands-on approach to the metal industry. Our Carbon Steel Spring Bar Rod is a prime example of this commitment, offering a dependable foundation for projects that demand both strength and resilience. We understand that great outcomes start with great materials, and this rod is engineered to deliver just that for a wide array of demanding applications.

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Carbon Steel Spring Round Bar

Carbon Steel Spring Hex Bar

Carbon Steel Spring Square Bar

What is Carbon Steel Spring Bar?

The composition of this carbon steel rod is carefully balanced to achieve excellent mechanical characteristics. It’s formulated with a higher carbon content, which is the key to its notable strength and impressive resistance to wear. This specific makeup gives the rod its signature ability to be formed and then return to its original shape, providing that essential ‘spring’. The result is a material that truly stands up to repetitive stress and high-load situations without failing.

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Chemical Compositions of Carbon Steel Spring Bar

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	/	/

Carbon Steel Spring Rods Mechanical Properties

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

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Carbon Steel Spring Bars Types

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Frequently Asked Questions (FAQ)

What Are The Considerations For Selecting Carbon Steel Spring Bars?

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.

Can Carbon Steel Spring Bars Be Used In Cryogenic Applications?

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.

What Are The Available Sizes And Dimensions Of Carbon Steel Spring Rods?

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 Uses

This versatile rod finds its purpose in numerous applications where consistent performance under pressure is non-negotiable. It’s the ideal choice for crafting springs of all kinds, from those in automotive suspensions to industrial machinery. Beyond springs, it’s perfectly suited for creating durable clips, farm implements, and various components in mechanical assemblies. Whether in a workshop or a large-scale manufacturing plant, this rod provides the dependable backbone for parts that simply have to perform, day in and day out.

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