EN9 – CARBON STEEL – BRIGHT BAR

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:

Addition to other grades:

EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, DIN1.2714, P20, P20+S, P20+Ni,  SCM420, ASTMSA-36, ASTMSA-105, SAE1018, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.

Our Supply Range: 

Price List: 

Chemical composition:

The following table shows the chemical composition of EN9 steel:

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: 

Ambattur, Bangalore, Chennai, Coimbatore, Dindigul, Guindy, Madurai, Nellore, Hyderabad, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Kanyakumari, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore,  Karur, Nagercoil, Kanchipuram, Karaikudi, Pudukottai, Nagapattinam.

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