SUP10 spring steel plate is a chromium-vanadium spring steel plate used for leaf springs, elastic components and high-strength mechanical parts. It provides good fatigue strength, elastic performance and toughness after quenching and tempering. SUP10 is often compared with 51CrV4 and AISI 6150 spring steel grades and can be supplied as hot rolled plate, cut plate or processed part.
Materials can be cut to required sizes according to customer specifications or project needs.
Different surface finishes can be supplied according to product type and application requirements.
Processing services such as cutting, machining, heat treatment or surface finishing can be arranged upon request.
Products are packed for international transportation with flexible delivery support for global buyers.
For use in leaf springs, elastic elements, and fatigue-resistant structural components.
Suitable for automotive leaf springs, truck suspension springs, agricultural machinery elastic plates, engineering vehicle spring leaves, industrial elastic supports, and more. Ideal for applications subject to repeated bending, impact, and fatigue loads.|
Item |
Typical Information |
|
Product Name |
SUP10 Spring Steel Plate |
|
Equivalent Grades |
SUP10 / 51CrV4 / AISI 6150 / EN 1.8159 |
|
Product Form |
Plate, sheet, strip, cut plate |
|
Standard Reference |
JIS G4801 or customer specification |
|
Supply Condition |
Hot rolled, annealed, quenched & tempered |
|
MOQ |
Usually 1 ton or negotiable by stock thickness |
|
Application |
Leaf springs, suspension parts, elastic plates |
|
Property |
Typical Range / Note |
|
Tensile Strength |
Depends on heat treatment condition |
|
Yield Strength |
High after Q&T condition |
|
Hardness |
Supplied as annealed or heat-treated per order |
|
Key Property |
Fatigue resistance and elastic recovery |
|
Note |
Confirm final values by standard and MTC |
|
C |
Si |
Mn |
Cr |
V |
P |
S |
|
0.47–0.55 |
0.15–0.35 |
0.65–0.95 |
0.80–1.10 |
0.15–0.25 |
≤0.030 |
≤0.030 |
Q: What is SUP10 spring steel?
A: SUP10 is JIS G 4801‑2021 chromium‑vanadium alloy spring steel, equivalent to AISI 6150 and 51CrV4 1.8159, designed for high‑stress thermal‑formed spring components.
Q: What product forms of SUP10 can you provide?
A: We offer SUP10 in hot rolled forged cold drawn round bar flat bar and plate. Custom diameter and custom cut‑to‑length processing are supported for client‑specific requirements.
Q: What are the key performance advantages of SUP10?
A: SUP10 features fine grain structure, low overheating sensitivity, superior fatigue resistance and good thermal stability up to 300°C, with excellent hardenability after quenching and tempering treatment.
Q: What are typical applications for SUP10 spring steel?
A: SUP10 is widely used for automotive suspension coil springs, engine valve springs, railway buffer springs, stabilizer bars and heavy‑duty industrial spring parts under cyclic load and vibration.
Q: Can you provide material inspection documents for SUP10?
A: Yes. ISO 9001 certificate and EN10204 3.1 material test reports are available for each batch. Strict pre‑delivery inspection guarantees consistent mechanical properties.
