Carbon Steel Round 1040 1055 Strips Black En8 En9

C20/1.1151 C45/1.1191 1055 S55C EN9/070M55 Carbon Steel Rod Bar

Carbon Steel Round 1040 1055 Bars Black En8 En9

1: 1055 steel introduction

1055 steel is an unalloyed medium carbon engineering steel which has 0.52%-0.6% Carbon as per EN10083 standard.It will obtain high hardness and high strength after hardening due to the relatively high carbon content,and also can be flame or induction hardened to surface hardness Min 58HRC.C55 steel is generally supplied in an untreated or normalised condition

2.Chemical Composition

Grade	C	Mn	P	S	Si	Cr	Mo	Ni	Cr+Mo+Ni
C55/1.0535	0.52-0.6	0.60-0.90	≤ 0.045	≤ 0.045	≤ 0.4	≤ 0.4	≤ 0.1	≤ 0.4	≤ 0.63
C55E/1.1203	0.52-0.6	0.60-0.90	≤ 0.03	≤ 0.035	≤ 0.4	≤ 0.4	≤ 0.1	≤ 0.4	≤ 0.63
C55R/1.1209	0.52-0.6	0.60-0.90	≤ 0.03	0.02-0.04	≤ 0.4	≤ 0.4	≤ 0.1	≤ 0.4	≤ 0.63

3.Relevant Standards

USA	UK	China	Japan	Australia
1055	070M55 / EN9	55#	S55C	1055

4: 1055 steel mechanical properties

Mechanical properties a at room temperature in the quenched and tempered condition (+QT)
Diameter d mm	≤ 16	16-40	40-100
Thickness t mm	< 8	8-20	20-60
Yield Strength Mpa	≥550	≥490	≥420
Tensile Strength Mpa	800-950	750-900	700-850
Elongation, %	≥12	≥14	≥15
Reduction of area ,%	≥30	≥45	≥40

Mechanical properties a at room temperature in the normalized condition (+N)
Diameter d mm	≤ 16	16-100	100-250
Thickness t mm	≤ 16	16-100	100-160
Yield Strength Mpa	≥370	≥330	≥300
Tensile Strength Mpa	≥680	≥640	≥620
Elongation, %	≥11	≥12	≥12

5: 1055 steel overviews

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Delivery time	30-45 days
Application	1055 is a medium carbon steel suitable for various type of applications where high strength is needed.It is used for components of small cross section requiring low tensile strength, and heavy forgings in the normalized condition for automotive and general engineering such as axles, clutch members, shafts, pressed and punched parts, piston rods and gear racks.

6: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed/QT, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
For Cold Drawn bar, usually the delivery condtion is cold drawn, annealed/QT, peeled/black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, milled/black surface
For hot forged plate, usually the delivery condition is hot forged, normalized/annealed, milled/black surface.

Carbon Steel Round 1040 1055 Bars Black En8 En9

Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.

Carbon Steel Round 1040 1055 Bars Black En8 En9

Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.

Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.

Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.

Carbon Steel Round 1040 1055 Bars Black En8 En9

The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.

Carbon Steel Round 1040 1055 Bars Black En8 En9