Wuxi Raymond Steel Co., Ltd.
| Packaging Details | standard export packing |
| Delivery Time | 45 days |
| Payment Terms | TT or LC |
| Supply Ability | 100000 |
| Product Name | Spring Steel Flat Bar |
| Brand | Huaye |
| Standard | ASTM A29M / JIS G4801 / GB/T1222 / GB/T3077 |
| Material Grades | 55SiMnVB / 60SiMn / 50CrVA / 55CrMnA / 60CrMnA / 60CrMnBA |
| Equivalent Grades | 51B60 / 9260 / 6150 / 5155 / 5160 / SUP7 / SUP9 / SUP9A / SUP10 / SUP11 |
| Thickness | 3–20mm |
| Width | 25–180mm |
| Length | 5800–6000mm / 1m / 6m / 9m / 12m / Custom |
| MOQ | 50MT per size |
| Surface | Hot Rolled |
| Application | Spring Manufacturing / Machinery / Automotive / Industrial Components |
| Place of Origin | China |
| Brand Name | Huaye |
| Certification | ISO14000 |
View Detail Information
Explore similar products
GB/T 701 Q235A Q235B Q235C Mild Steel Wire Rod 5.5mm–16mm Diameter
6M or Custom Length Hot Rolled Flat Bar Q195 Q345 GB704 Mild Steel Products
JIS G3101 SS400 Pre Galvanized and Hot Dipped Galvanized Steel C Channel
25–180mm Hot Rolled Flat Bar Q195 Q215 Q235 Mild Steel Flat Bar
Product Specification
| Packaging Details | standard export packing | Delivery Time | 45 days |
| Payment Terms | TT or LC | Supply Ability | 100000 |
| Product Name | Spring Steel Flat Bar | Brand | Huaye |
| Standard | ASTM A29M / JIS G4801 / GB/T1222 / GB/T3077 | Material Grades | 55SiMnVB / 60SiMn / 50CrVA / 55CrMnA / 60CrMnA / 60CrMnBA |
| Equivalent Grades | 51B60 / 9260 / 6150 / 5155 / 5160 / SUP7 / SUP9 / SUP9A / SUP10 / SUP11 | Thickness | 3–20mm |
| Width | 25–180mm | Length | 5800–6000mm / 1m / 6m / 9m / 12m / Custom |
| MOQ | 50MT per size | Surface | Hot Rolled |
| Application | Spring Manufacturing / Machinery / Automotive / Industrial Components | Place of Origin | China |
| Brand Name | Huaye | Certification | ISO14000 |
| High Light | galvanized wire rod ，hot rolled wire rod | ||
T1222 GB JIS G4801 ASTM A29M Spring Steel Flat Bar
１．Product Overview
Spring steel flat bar is designed for applications requiring high elastic limit, fatigue resistance, and stable mechanical performance under repeated loading conditions.
Produced according to ASTM A29M, JIS G4801, GB/T1222, and GB/T3077 standards, these spring steel flat bars are commonly used in automotive suspension systems, industrial springs, mechanical components, agricultural machinery, and heavy-duty structural applications.
The controlled alloy composition supports strength stability, heat treatment performance, and wear resistance for demanding industrial environments.
２．Technical Solution
The spring steel flat bar is manufactured through hot rolling with controlled chemical composition and alloy design to improve hardness, resilience, and fatigue resistance.
Silicon, manganese, chromium, vanadium, and boron alloying elements improve tensile performance and heat treatment response, making the material suitable for dynamic load applications.
Thickness from 3mm to 20mm and width from 25mm to 180mm support multiple fabrication and spring processing requirements.
３．Specifications
| Parameter | Value |
|---|---|
| Product Type | Spring Steel Flat Bar |
| Standard | ASTM A29M / JIS G4801 / GB/T1222 / GB/T3077 |
| Thickness | 3–20mm |
| Width | 25–180mm |
| Length | 5800–6000mm / Custom |
| MOQ | 50MT per size |
| Surface | Hot Rolled |
| Application | Spring / Mechanical / Automotive / Industrial |
Material Grades
| China GB | USA AISI | JIS | Carbon C | Silicon Si | Manganese Mn | Chromium Cr |
|---|---|---|---|---|---|---|
| 55SiMnVB | 51B60 | SUP11 | 0.52–0.60 | 0.70–1.00 | 1.00–1.30 | ≤0.35 |
| 60SiMn | 9260 | SUP7 | 0.56–0.64 | 1.50–2.00 | 0.60–0.90 | ≤0.35 |
| 50CrVA | 6150 | SUP10 | 0.46–0.54 | 0.17–0.37 | 0.50–0.80 | 0.80–1.10 |
| 55CrMnA | 5155 | SUP9 | 0.52–0.60 | 0.17–0.37 | 0.65–0.95 | 0.65–0.95 |
| 60CrMnA | 5160 | SUP9A | 0.56–0.64 | 0.17–0.37 | 0.70–1.00 | 0.70–1.00 |
| 60CrMnBA | 51B60 | SUP11 | 0.56–0.64 | 0.17–0.37 | 0.70–1.00 | 0.70–1.00 |
４．Application
Spring steel flat bars are widely used for leaf springs, suspension systems, agricultural machinery, heavy equipment, industrial springs, railway components, trailer parts, and mechanical manufacturing.
They are suitable for applications requiring repeated stress resistance, elastic recovery, and stable strength performance.
５．Processing
The material supports cutting, punching, bending, heat treatment, machining, and spring forming processes.
Heat treatment can improve hardness, fatigue resistance, and wear performance according to application requirements.
６．Advantages
７．How to Choose
８．FAQ
Q1．What standards are available
ASTM A29M, JIS G4801, GB/T1222, and GB/T3077 standards are available.
Q2．What is the available thickness range
Thickness ranges from 3mm to 20mm.
Q3．What is the available width range
Width ranges from 25mm to 180mm.
Q4．Can custom lengths be supplied
Yes. Custom lengths can be supplied according to project requirements.
Q5．What are the main applications
The product is mainly used for springs, automotive suspension systems, machinery, and industrial equipment.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2000
Total Annual:
> 10,000,000
Employee Number:
501~1000
Ecer Certification：
Verified Supplier
Wuxi Raymond Steel Co., Ltd. was founded in Oct., 2000, with total investment of 25 million U.S Dollars, which is a large-scale iron and Steel enterprise specialized in producing hot-rolled and cold-rolled steel strip. Wuxi Raymond Steel Co., Ltd. is situated in the region of Shitangwan Industria... Wuxi Raymond Steel Co., Ltd. was founded in Oct., 2000, with total investment of 25 million U.S Dollars, which is a large-scale iron and Steel enterprise specialized in producing hot-rolled and cold-rolled steel strip. Wuxi Raymond Steel Co., Ltd. is situated in the region of Shitangwan Industria...
Get in touch with us
Leave a Message, we will call you back quickly!