EN9 – CARBON STEEL – BRIGHT BAR

EN9 Bright Bars, EN9 Bright bar manufacturer, EN9 Bright bar Supplier, EN9 Bright bar Stockiest, EN9 Bright bar Dealers, EN9 Bright bar Distributors, EN9 Bright bar Wholesalers, EN9 Bright  bar Steel Traders, EN9 Bright bar Steel Hexagon Distributors, EN9 Bright bar Round  Steel Bar, EN9 Bright bar Steel Companies Near me.

Grade Introduction:

En9 round bar is also known by its trade name  070M55. The carbon content in the alloy of an en9 bright bar ranges between 0.5 – 0.6%, thus making this grade a medium carbon steel alloy. The tensile strength of the en9 steel rod could be developed between 500 Mpa – 800 Mpa.

Grade Application:

Typical applications for the en9 flat bar include its use in the production of shafts, woodworking,  axes, knives, crankshafts, screws, bushes, sprockets, springs, cams, cylinders, sickles, drills as well as small gears, machine tools, keys and hammers.

Equivalent grades:

BS 970 1991	BS 970 1955 EN	AISI/SAE	Werksoff
070M55	EN9	1055	1.0535

Addition to other grades:

MS, EN1A, EN3B, EN8, EN8D, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, 2714, SKD-11, P20, P20+S, P20+Ni, SCM 420, ASTM SA-36, ASTM SA-105, SAE 1018, SAE 1020, SAE 4140, SAE 8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE 52100, S40C, S355J2G3.

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Chemical composition:

The following table shows the chemical composition of EN9 steel:

Element	C	Si	Mn	P	S	Cr
Content(%)	0.50-0.60	0.4 Max	0.50-0.80	0.035 Max	0.015-0.035	0.30 Max

Mechanical Properties:

UTS in N/mm² , hot rolled or normalized, min.:705 (72 kg/mm²)

Elongation %, hot rolled or normalized, min: 13

UTS in N/mm² , hardened and tempered, min. *:775 (79 kg/mm²)

Elongation %, hardened and tempered, min: 13

*(Limiting ruling section = 30mm)

Hardness:

180 HB to 230 HB

Heat treatment: 

Hardening:

820-850ºC

Tempering:

550°C to 660°C

Physical Properties: 

Thermal Properties: 

Forging Properties:

Forging, rolling, etc. : 1150 ^oC, finishing > 850 ^oC

Stress Reliving: 

Normalizing:

810 – 840 ^oC, air cool

Annealing:

810 – 840 ^oC, furnace cool

Density: 

Machinability: 

Welding: 

Supply Cities: 

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