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Inox Steel India is a reliable manufacturer, supplier, and exporter of Carbon Steel Bright Bars in grades EN8, EN9, and C45, supplying precision-engineered bright bars to machining units, OEMs, automotive manufacturers, and engineering industries across India, GCC, Middle East, Africa, Europe, and the Americas.
Our carbon steel bright bars are produced through controlled cold drawing, peeling, polishing, and centerless grinding processes, delivering tight dimensional tolerances, smooth surface finish, and consistent mechanical strength. These properties make them ideal for components subjected to dynamic loads, machining accuracy, and repeatable production cycles.
Carbon Steel Bright Bars are cold-finished bars manufactured from hot-rolled carbon steel rods, further processed to improve surface quality, straightness, and dimensional accuracy.
This process ensures carbon steel bright bars that offer excellent machinability, predictable strength, and reduced tool wear, especially important for CNC and mass-production environments.
Each grade is supplied with EN 10204 3.1 / 3.2 certification, ensuring full material traceability and compliance with international standards.
CARBON STEEL BRIGHT BARS – MASTER TECHNICAL DATA SHEET
Grades: EN8 | EN9 | C45
| Parameter / Property | EN8 Bright Bar | EN9 Bright Bar | C45 Bright Bar |
|---|---|---|---|
| Material Type | Medium Carbon Steel | Medium–High Carbon Steel | Medium Carbon Steel |
| EN / DIN Designation | EN8 | EN9 | C45 |
| DIN Equivalent | C45 / 1.1191 | C55 / 1.1203 | C45 / 1.1191 |
| ASTM Equivalent | AISI 1040 | AISI 1050 | AISI 1045 |
| IS Standard | IS 1570 Gr 40C8 | IS 1570 Gr 55C8 | IS 1570 Gr 45C8 |
| Manufacturing Process | Cold Drawn / Peeled / Polished / Centerless Ground | Cold Drawn / Peeled / Polished / Centerless Ground | Cold Drawn / Peeled / Polished / Centerless Ground |
| Available Forms | Round, Square, Hex, Flat Bright Bars | Round, Square, Hex, Flat Bright Bars | Round, Square, Hex, Flat Bright Bars |
| Diameter Range (Round) | 5 – 150 mm | 5 – 150 mm | 5 – 150 mm |
| Square / Hex Size | 6 – 100 mm | 6 – 100 mm | 6 – 100 mm |
| Standard Length | 3 – 6 meters | 3 – 6 meters | 3 – 6 meters |
| Custom Cut Lengths | As per drawing / requirement | As per drawing / requirement | As per drawing / requirement |
| Tolerance | h8 / h9 / h10 | h8 / h9 / h10 | h8 / h9 / h10 |
| Supply Condition | Cold Drawn / Annealed / Q&T | Cold Drawn / Annealed / Q&T | Cold Drawn / Annealed / Q&T |
| Tensile Strength (MPa) | 550 – 700 | 650 – 800 | 600 – 800 |
| Yield Strength (MPa) | ≥ 280 | ≥ 320 | ≥ 330 |
| Elongation (%) | ≥ 16 | ≥ 14 | ≥ 16 |
| Hardness (HB) | 170 – 210 | 190 – 240 | 180 – 220 |
| Carbon Content (%) | 0.35 – 0.45 | 0.50 – 0.60 | 0.42 – 0.50 |
| Manganese (%) | 0.60 – 1.00 | 0.60 – 1.00 | 0.50 – 0.80 |
| Heat Treatment Capability | Annealing / Normalizing / Q&T | Annealing / Normalizing / Q&T | Annealing / Normalizing / Q&T |
| Surface Finish | Bright Cold Drawn / Polished / Centerless Ground | Bright Cold Drawn / Polished / Centerless Ground | Bright Cold Drawn / Polished / Centerless Ground |
| Machinability | Good | Moderate | Good |
| Weldability | Good (preheat for thick sections) | Fair (preheat recommended) | Good (controlled conditions) |
| Testing Performed | Chemical, Mechanical, Dimensional, Surface | Same as EN8 | Same as EN8 |
| Certification | EN 10204 3.1 / 3.2, ISO 9001 | EN 10204 3.1 / 3.2, ISO 9001 | EN 10204 3.1 / 3.2, ISO 9001 |
| HSN / HS Code | 7228 | 7228 | 7228 |
| Typical Applications | Shafts, pins, bolts, general engineering | Gears, axles, high-load shafts | Machine parts, spindles, automotive |
| Packaging | HDPE wrap / Wooden pallets / Export seaworthy | Same as EN8 | Same as EN8 |
Carbon Steel Bright Bars from Inox Steel India are widely used in load-bearing, precision-machined, and heat-treated components where strength, toughness, and dimensional accuracy are critical. Selection of EN8, EN9, or C45 depends on mechanical load, wear conditions, and heat treatment requirements.
These tight tolerances reduce secondary machining, improve interchangeability, and ensure consistent assembly fit.
Machining Benefits:
| Grade | Approx. Price (INR / kg – Ex-Mumbai) | Approx. Price (USD / kg – FOB India) |
|---|---|---|
| EN8 | ₹ 85 – ₹ 120 | $ 1.05 – $ 1.45 |
| EN9 | ₹ 95 – ₹ 135 | $ 1.15 – $ 1.60 |
| C45 | ₹ 90 – ₹ 130 | $ 1.10 – $ 1.55 |
Prices are indicative and vary based on size, finish, tolerance, and heat treatment.
HSN Code (India): 7228
HS Code (Export): 7228.30 / 7228.40 (form dependent)
All carbon steel bright bars supplied by Inox Steel India undergo strict quality control:
Supplies are accompanied by EN 10204 3.1 / 3.2 Mill Test Certificates ensuring full traceability.
Inox Steel India is a dependable manufacturer, supplier, and exporter of Carbon Steel Bright Bars, supporting engineering industries with consistent quality, precise tolerances, and reliable supply chains. Our EN8, EN9, and C45 bright bars are trusted by OEMs, automotive manufacturers, and fabrication units for their strength, machinability, and heat treatment compatibility.
Our Strengths:
| Industry | Typical Components | Preferred Grades |
|---|---|---|
| Machining & CNC | Shafts, pins, bushings | EN8, C45 |
| Automotive | Axles, spindles, crankshafts | EN9, C45 |
| Fasteners & Hardware | Bolts, studs, tie rods | EN8 |
| Engineering & Fabrication | Couplings, machine parts | EN8, C45 |
| Heavy Equipment | Gears, load-bearing shafts | EN9 |
Each application is matched with the correct grade, finish, and supply condition to ensure long service life and operational safety.
All carbon steel bright bars are packed to meet international export standards:
Export Markets Served:
UAE · Saudi Arabia · Oman · Qatar · Nigeria · South Africa · Germany · Italy · UK · USA · Brazil
Ports of Dispatch:
JNPT (Mumbai) · Mundra · Hazira
At Inox Steel India, we deliver precision-finished carbon steel bright bars that meet the mechanical and machining demands of modern engineering industries.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
+91 9930796690
EN9 has higher carbon content than EN8, providing greater hardness and wear resistance for heavy-duty applications. C45 is closer to EN8 in composition but offers slightly higher strength and is widely accepted in international standards. Yes, EN8, EN9, and C45 bright bars can be annealed, normalized, or quenched & tempered. The standard HSN code is 7228 for carbon and alloy steel bars. Yes, we supply custom cut lengths as per drawing and tolerance requirements. What is the difference between EN8 and EN9 bright bars?
Is C45 equivalent to EN8?
Can carbon steel bright bars be heat treated?
What is the HSN code for carbon steel bright bars?
Do you supply custom cut lengths?
Inox Steel India is a leading manufacturer and exporter of carbon steel bright bars (EN8, EN9, C45). Precision finished, certified & export-ready. Supplier near Alankar Cinema, Mumbai.