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Products/Carbon Steel/EN9

EN9 Carbon Steel Round Bar

Medium-High Carbon Wear-Resistant Engineering Steel

Standard
BS 970:1955 (EN9) / BS 970:1991 (070M55) / EN 10083-2 (C55)
Werkstoff / UNS
Werkstoff: 1.0535 / 1.1203UNS: G10550
Common Equivalents
C5555C8S55C50C81050
Overview

About EN9 Carbon Steel

C P Steel Suppliers supplies EN9 Carbon Steel for engineering, industrial machinery and manufacturing applications. It is classified as Medium-High Carbon Wear-Resistant Engineering Steel. Common equivalents include C55, 55C8, S55C, 50C8, 1050. Available forms include ROUND BAR, FLAT BARS, SHEET, PLATE, COIL.

Contact our Mumbai team with your required size and quantity to confirm availability, documentation and delivery.

EN9 Round Bar Suppliers, EN9 Stockist, EN9 Big Dia, EN9 Cut to size as per requirement, EN9 vs C55, 55C8, S55C, 50C8, 1050, EN9 Flat Bar, EN9 Small Quantity, EN9 Larger Dia, EN9 Circle, Ring. EN9 Mumbai, Chennai, Tamil Nadu, Gujarat, Pune, Maharashtra, India etc.

Specification

Chemical Composition

ElementComposition (wt%)
CCarbon
0.50 - 0.60%
MnManganese
0.50 - 0.90%
SiSilicon
0.10 - 0.40%
PPhosphorus
max 0.045%
SSulfur
max 0.045%
FeIron
Balance
Performance

Mechanical, Physical & Processing Properties

PropertyValue / Reading
Tensile Strength640 - 750 MPa (Normalized) / 700 - 950 MPa (Quenched & Tempered)
Yield Strengthmin 330 - 370 MPa (Normalized) / min 420 - 550 MPa (Q&T)
Elongation11 - 15 %
Hardness Brinell190 - 235 HBW (Normalized) / up to 55 - 60 HRC (Surface Hardened)
PropertyValue / Reading
Density7.85 g/cm³
Melting Point1450 - 1490 °C
Modulus Of Elasticity200 GPa
Thermal Conductivity46.5 W/m·K
PropertyValue / Reading
WeldabilityPoor/Limited due to high carbon content; requires strict preheating and post-weld heat treatment.
MachinabilityModerate; best machined in normalized or annealed state.
HardenabilityExcellent response to flame and induction surface hardening for gears, sprockets, cams, and knives.
Corrosion ResistanceLow; requires protective coating.
Cross Reference

Equivalent Grades by Standard

Standard / RegionEquivalent Grade
Indian IS55C8 / 50C8 (IS 1570)
European ENC55 / C55E (EN 10083-2)
Germany DINC55 / Ck55
Japan JISS55C / S50C
UK (BS)070M55 (EN9)
USA (SAE / AISI)SAE 1055 / SAE 1050
Availability

Available Forms & Sizes

  • ROUND BAR
  • FLAT BARS
  • SHEET
  • PLATE
  • COIL
Form TypeSize Range Available
Black Round BarsOD 16MM - OD 500MM
Flat Bars5MM THK - 155MM THK
Black Sq Bars16MM X 16MM - 220MM X 220MM
FAQ

EN9 — frequently asked questions

What is the equivalent of EN9?
Common equivalents include C55, 55C8, S55C, 50C8, 1050. Standards: Indian IS: 55C8 / 50C8 (IS 1570); European EN: C55 / C55E (EN 10083-2); Germany DIN: C55 / Ck55; Japan JIS: S55C / S50C; UK (BS): 070M55 (EN9); USA (SAE / AISI): SAE 1055 / SAE 1050.
Which forms of EN9 are available?
EN9 is available as ROUND BAR, FLAT BARS, SHEET, PLATE, COIL.
Where can I buy EN9 Carbon Steel in Mumbai or across India?
C P Steel Suppliers supplies EN9 Carbon Steel from Mumbai. Contact us with your size and quantity to confirm availability and delivery.

Interested in Carbon Steel EN9?

Tell us the size and quantity you need and we will get back to you.

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