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Name: EN8/EN9 En Series Round Steel Bar
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EN8/EN9 En Series Round Steel Bar

EN8 is a medium carbon steel with a carbon content of 0.25% to 0.60%. It is often used to manufacture mechanical parts, bearings, gears and other parts. It has high strength and wear resistance and can obtain high hardness and strength after heat treatment.

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Product Description

EN8/EN9 En Series Round Steel Bar Description

The chemical composition of EN8 includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other elements. The carbon content is the most important, usually between 0.36-0.44%. EN8 has good weldability, and it can be welded by conventional welding methods, such as arc welding, gas welding, etc. However, when performing high-intensity welding, care needs to be taken to control the welding heat to prevent material deterioration. EN8 carbon steel bars are widely used in the manufacturing industry, especially where high strength and wear resistance are required. They are often used to manufacture bearings, pins, mechanical parts, etc..

Product Parameters

Product Name	EN8/EN9 En Series Round Steel Bar
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI, etc.
Common Round Bar Specifications	3.0-50.8 mm, Over 50.8-300mm
Flat Steel Common Specifications	6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm
Hexagon Bar Common Specifications	AF5.8mm-17mm
Square Bar Common Specifications	AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm
Length	1-6meters, Size Accept Custom
Diameter(mm)	Hot Rolling Round Bar	25-600	Cold Rolling Square Bar	6-50.8
	Hot Rolling Square Bar	21-54	Cold Rolling Hexagon Bar	9.5-65
	Cold Rolling Round bar	6-101.6	Forged Rebar	200-1000
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

Grade	C %	Si %	Mn %	Cr %	Mo %	W %
EN-1A	0.007-0.15	0.10	0.80-1.00	S	P	-
				0.20-0.30	0.70 MAX
EN-8	0.35-0.45	0.05-0.30	0.60-1.00	S	P	-
				0.06 MAX	0.06 MAX
EN-9	0.50-0.60	0.05-0.30	0.5-0.80	-	-	-
EN-19 (V 320)	0.35-0.45	0.10-0.30	0.5-0.80	0.90-1.40	0.20-0.40
EN-24 (V 130)	0.35-0.45	0.10-0.35	0.45-0.70	0.90-1.40	0.20-0.35	NI
						1.3-1.8
EN-31 R-100	0.90-1.20	0.10-0.35	0.30-0.75	1.00-1.60	-	-
EN-36C E-200	0.12-0.18	0.10-0.35	0.30-0.60	0.60-1.10	-	NI
						3.0-3.75
EN-42	0.70-0.85	0.10-0.40	0.55-0.75	-	-	-
EN-44	0.90-1.20	0.30	0.45-0.70	-	-	-
EN-45 F-110	50-0.60	1.5-2.0	0.70-1.00	-	-	-
EN-351	0.10-0.20	0.35	0.60-1.00	0.40-0.80	0.08-0.10	NI
						0.60-1.00
EN-353	0.10-0.20	0.35	0.50-1.00	0.75-1.25	0.08-o.15	NI
						1.00-1.50

Mechanical Properties

Grade	Hardening Temperature	Quenching Medium	Tempering Temperature	Brinell Hardness	JapanHe	AISI
EN-1A	-	-	-	-	-	-
EN-8	750-900	OIL	150-200		-	1040
EN-9	850-900	OIL	200-250	55-60	-	-
EN-19 (V 320)	900-950	OIL	200-225	45-55	SCM 4	4140
EN-24 (V 130)	830-860	OIL	540-680	45-55	SNCM 8	4340
EN-31 R-100	820-860	OIL	180-225	59-65	-	-
EN-36C E-200	780-860	OIL	170-210	61-63	SNC 22	3415
EN-42	600-700	DIRECT HARDENING		40-45	-	-
EN-44	650-750	OIL	150	45-50	-	-
EN-45	830-860	OIL	470-520	50-55	-	9255
EN-351	850-860	OIL	175-200	62-64	-	-
EN-353	840-870	OIL	150-200	62-64	-	-

Scope of Application

The EN series is widely used in many general engineering applications. Typical applications include shafts, studs, bolts, connecting rods, screws, etc.

Product Application

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FAQ

1. What products do you supply?
We supply carbon steel, galvanized steel, pre-painted steel, stainless steel, copper, aluminum, and structural steel sections. Our product range includes sheets, coils, pipes, bars, strips, angles, channels, I-beams, and H-beams.

2. Can you provide customized specifications?
Yes. We can supply products in different materials, grades, thicknesses, widths, lengths, and surface finishes. Please send us your detailed specifications so we can confirm availability.

3. What processing services do you offer?
Depending on the product and project requirements, we can provide cutting, slitting, custom sizing, and other processing services. Please provide your drawings, dimensions, tolerances, and processing requirements with your inquiry.

4. How do you ensure product quality?
Products are supplied according to the material, dimensions, specifications, and quality requirements confirmed in the order. Please inform us before ordering if your project requires specific inspections, tests, or documents.

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