65Mn Spring Steel Plate Carbon Coil Sheet for industry

Product Name Cold Rolled Steel Coil
Material gread 65Mn
Length 1m 2m,2.44m,3m,5.8m,6m 12m or as customers required
Technique Cold rolled, hot rolled
Width 15mm-700mm-1250, 15mm-700mm-1250m
Surface treatment Galvanized Coated,Black,oiled,unoiled,customized,ect
Sample Can provide samples
Payment T/T, D/A, D/P, L/C, Western Union, MoneyGram or according to customer requirements.
Certificate ISO,CE,ect

Product Introduction

65Mn is the most common spring steel in China. It has excellent comprehensive properties, such as mechanical properties, anti-ballistic properties, fatigue properties, hardenability, and physical and chemical properties, and its chemical composition and mechanical properties are regulated by the Chinese national standard GB/T 1222-2007.


65Mn spring steel carbon content generally does not exceed 0.70%, the tensile strength is 735MPa, the yield strength is 430MPa, and the elongation is 14~21.5%.


65Mn spring steel has the following general characteristics:


1)Low Carbon Content: 65Mn spring steel belongs to the category of low-carbon alloy steel, cold extruded, carburized and hardened steel. The carbon content in 65Mn is generally in 0.62~0.70%, making it a low carbon steel suitable for welding and forming processes.


  • ExcellentFlexibility and plasticity: After heat treatment and cold drawing hardening, the strength is relatively high, and it has certain flexibility and plasticity; under the same surface state and complete hardening, the fatigue limit is equivalent to that of the colorful alloy spring, exhibits good plasticity, allowing it to be formed into various shapes and structures without fracturing.


3)Excellent overall performance: 65Mn Spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), and precise shape and size.


4)High Strength: Although it is a low carbon alloy steel, 65Mn spring steel has relatively high tensile strength, with a yield strength of 430 MPa and a tensile strength of 735 MPa.


  • Wide Application: 65Mn spring steel is widely used in general structural and engineering purposes, including construction, bridges, machinery manufacturing, transportation equipment, high wear-resistant parts, and other industries where strength and durability are required.

65Mn Spring Steel Chemical Composition:


Composition (%)


















65Mn spring steel has a wide range of applications in various industries due to its excellent comprehensive properties,like good flexibility and plasticity good mechanical properties and affordability. Some common applications of 65Mn spring steel include:


1)High wear-resistant parts: such as grinding machine spindles, spring chucks, precision machine tool screws, cutters, knives and machetes, small-section flat springs, round springs, springs, collars on helical roller bearings, railway rails, etc.

Its excellent comprehensive performance makes it a preferred choice for various mechanical applications


2)Machinery Manufacturing: 65Mn spring steel is employed in the manufacturing of machinery and equipment components, such as frames, chassis, and structural parts. Its versatility and easy machinability make it a preferred choice for various machinery applications.


3)Automotive Industry: 65Mn spring steel is utilized in the automotive industry for the production of components like car frames, chassis, and structural parts. Its high strength and good formability make it suitable for automotive applications.


  • Railway Vehicles: 65Mn spring steel is also used in the manufacturing of railway vehicles, including railcar bodies, underframes, and structural components. Its mechanical properties and durability meet the requirements of the railway industry.

Classification By Size

The length is generally 2440mm, 2000mm, 3050mm, 4000mm, 3000mm, and the thickness is distinguished by cold rolling and hot rolling. Cold rolling mainly has thickness 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm. The main thickness of hot rolling is 3.0mm, 4.0mm, 6.0mm, 8.0mm, 10.0mm, and the width is generally 1000mm, 1219mm, 1500mm.Please contact customer service for general specifications.

Hot-rolled products have excellent properties such as high strength, good toughness, easy processing and good weldability, so they are widely used in manufacturing industries such as steel, construction, machinery, boilers, and pressure vessels. Application range: (1) After annealing, it is processed into ordinary cold rolling; (2) The galvanizing unit with pre-annealing treatment device processes galvanizing; (3) Panels that basically do not need to be processed.

Hot-rolled coils (in the form of flat plates or coils) generally have a thickness of 2.0-13.5mm, of which the price of 2.0-3.0mm hot coils gradually decreases from thin to thick; most steel mills have a basic price of 3.1mm-13.5mm Equivalent, the price of 3.1-4.0mm and 9.5mm-13.5mm hot plate coils in some manufacturers and markets may be higher than the price of 4.0mm-9.5mm plates. Hot plate coils represent products with a thickness of 5.5mm. Under normal circumstances, the price of flat plates is slightly higher than the price of coils.

Why Choose Us?

*Top 20 companies in steel industry trade volume.

*Customized processing steel one-stop purchase.

*Exports of steel exceeded tens of billions for 5 consecutive years.

**We have a complete set of testing equipment, such as ut & ET, hydraulic testing equipment, spectrometer, scanning electron microscope, etc, and have passed SGS TUV

Our Quality Assurance Policy has established guidelines for providing products and services that exceed customer expectations. certified company.