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Carbon spring steel

We can produce Carbon spring steel stainless steel round rods, Carbon spring steel forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control Carbon spring steel chemical composition and Carbon spring steel mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.

Carbon spring steel

Carbon spring steel is held in a wide range of sizes. Detailed below are our most common specifications. Carbon steel strip and spring steel sheet is available most commonly in the hardened and tempered condition, though certain sizes are available in the annealed condition. Round and flat bar is stocked in the as rolled condition. Most spring steel specifications are held to British Standard steel specifications including BS1449 & BS970.

We also hold stock of spring temper rolled stainless spring steel supplied in grade 301 stainless which is an austenitic stainless steel. Stainless spring steels are also stocked in 420 which is a martensitic stainless steel specification.

Shim steel is stocked in grade BS1449 CS4.

TYPICAL ANALYSIS			EN43
C.	Si.	Mn.	S.	P.
0.50%	0.30%	0.70%	0.015%	0..015%

TYPICAL ANALYSIS			EN45
C.	Si.	Mn.	S.	P.
0.57%	2.00%	0.90%	0.015%	0.015%

TYPICAL ANALYSIS			EN47
C.	Si.	Mn.	Cr.	V.
0.50%	0.35%	0.70%	1.00%	0.10%

steel.com/EN43.html" style="border-right-width: 0px; border-top-width: 0px; border-bottom-width: 0px; color: rgb(239,62,51); border-left-width: 0px; font-weight: bold; text-decoration: none">EN43 is a carbon spring steel which is supplied in round bar, hexagon, flat and also as spring steel plate and sheet. Plate can be flame cut to your requirements with normalising recommended for this spring steel grade.

steel.com/EN45.html" style="border-right-width: 0px; border-top-width: 0px; border-bottom-width: 0px; color: rgb(239,62,51); border-left-width: 0px; font-weight: bold; text-decoration: none">EN45 is a silicon manganese spring steel suitable for oil hardening and tempering. Available in round and flat bar. It can be supplied as stock lengths or cut to your requirements

steel.com/EN47.html" style="border-right-width: 0px; border-top-width: 0px; border-bottom-width: 0px; color: rgb(239,62,51); border-left-width: 0px; font-weight: bold; text-decoration: none">EN47 is an oil quenching quality spring steel grade which gives good wear resistance properties after heat treatment. This chromium vanadium spring steel grade is available as round bar and limited sizes are available as flat bar.

TYPICAL ANALYSIS			CS70
C.	Si.	Mn.	S.	P.
0.70%	0.25%	0.70%	0.015%	0..015%

TYPICAL ANALYSIS			CS80
C.	Si.	Mn.	S.	P.
0.80%	0.25%	0.70%	0.015%	0.015%

TYPICAL ANALYSIS			CS95
C.	Si.	Mn.	S.	P.
0.95%	0.25%	0.70%	0.015%	0.015%

BS1449 covers a wide variety of spring steel specifications. Our stocks include grades CS70, CS80, CS95 and limited stock of CS100 spring steel. All these grades are stocked as spring steel strip and can be cut to your requirements. These specifications are supplied as hardened and tempered spring steel or as annealed spring steel.

CS70 and EN42 carbon spring steel grades are also stocked as spring steel sheet with stock sizes up to 4.76mm thick (3/16")

Limited stocks are held in austenitic stainless grade 301 spring steel and martensitic grade 420 spring steel.

Mechanical properties

Carbon spring steel Mechanical properties,Our production completely according to the Carbon spring steel standards to meet the Carbon spring steel mechanical performance, can also according to the customer request, to meet the requirements of customers of Carbon spring steel mechanical properties.

Heat treatment

Carbon spring steel Heat treatment,Our production completely according to the Carbon spring steel standards to meet the Carbon spring steel Heat treatment, can also according to the customer request, to meet the requirements of customers of Carbon spring steel Heat treatment.

Machining

Carbon spring steel Machining,Our production completely according to the Carbon spring steel standards to meet the Carbon spring steel Machining, can also according to the customer request, to meet the requirements of customers of Carbon spring steel Machining.

Welding performance

Carbon spring steel Welding performance,Our production completely according to the Carbon spring steel standards to meet the Carbon spring steel Welding performance, can also according to the customer request, to meet the requirements of customers of Carbon spring steel Welding performance.

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