EN8D Steel Round Bar, EN8D Steel Round Bar Manufacturers, EN8D Steel
Suppliers, EN8D Stockist, EN8D Steel Dealers, EN8D Steel Distributors,
EN8D Wholesalers, EN8D Steel Traders, EN8D Steel Square Distributors,
EN8D Steel Flat Bar, EN8D Steel Companies Near me.
Grade Introduction:
En8D steel bar is a medium carbon steel grade of engineering steel
that offers greater strength and hardness as compared to the low
carbon grades. The formability and weldability of En8d are fair when
using accepted shop practices. While machinability is good, this grade
responds very well to forging and heat treating. It is one of the most
used grades of carbon steel. People requiring better properties such
as strength, etc generally go for alloy steel if En8d or equivalent
grades are not suitable.
Grade Application:
Typical applications of En8d steel round bar include gears, shafts,
axles, bolts, studs, crane wheels, and machine parts.
Equivalent grades:
Internal Standard |
BS |
DIN |
IS |
EN |
SAE/AISI |
EN8D |
080A40 |
CK45 |
45C8 |
EN8D |
1040, 1045 |
Addition to other grades:
MS, EN1A, EN3B, EN8, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B,
EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, OHNS, D2, D3, H-11, H-13,
CW-1, 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.
Our Supply Range:
Price List:
People also search as:
EN8D, EN8D Steel, EN8D Chemical composition, EN8D Mechanical
properties, EN8D Equivalent Grades, EN8D Steel plate, EN8D Steel
sheet, EN8D Manufacturers, EN8D Suppliers, EN8D Dealers, EN8D
Stockist, EN8D Distributors, EN8D Wholesalers, EN8D Traders.
Chemical composition:
The following table shows the chemical composition of EN8D steel:
Element |
C |
Mn |
P |
S |
Content(%) |
0.40-0.45 |
0.70-0.90 |
0.045 Max |
0.045 Max |
Mechanical Properties:
MAX STRESS |
700-850 N/MM 2 |
|
Yield Stress |
465 n/mm 2 Min |
(up to 19mm LRS) |
0.2% Proof Stress |
450 n/mm 2 Min |
(up to 19mm LRS) |
Elongation |
16% Min |
(12% if cold-drawn) |
Impact KCV |
28 Joules Min |
(up to 19mm LRS |
Hardness |
201-255 Brinell |
|
Hardness:
180-220
Heat Treatment:
EN8D can be tempered at a heat of between 550°C to 660°C
(1022°F-1220°F), heating for about 1 hour for every inch of thickness,
then cool in oil or water. Normalizing of EN8 bright mild steel takes
place at 830-860°C (1526°F-1580°F) then it is cooled in air. Quenching
in oil or water after heating to this temperature will harden the
steel.
Hardening:
Heat the component slowly to 820-860°C and allow it to be heated
through. Quench in oil or water.
Tempering:
Temper the EN8D component immediately after quenching whilst tools
still hand warm. Re-heat the EN8D component to the tempering
temperature then soak for one hour per 25 millimeters of total
thickness (2 hours minimum) Cool in air. For most applications
tempering of EN8D will be between 550-660°C.
Physical Properties
Tensile Strength |
90,000 psi |
Yield Strength |
50,000 psi |
Elongation In 2” |
20% |
Reduction of Area |
30% |
Brinell Hardness |
180-220 |
Thermal Properties
Forging Properties:
Preheat the steel carefully, and then raise the temperature to 1050°C
for forging. Do not forge below 850°C. After forging cool slowly,
preferably in a furnace.
Stress Relieving:
Normalizing:
Normalizing of EN8D bright mild steel takes place at 830-860°C
(1526°F-1580°F) then it is cooled in air.
Annealing:
Heat slowly to 680-710°C, soak well. Cool slowly in the furnace.
Density:
Machinability
Welding:
Modern EN8D bright mild steel contains a lot less carbon than it uses
to, this means that it is possible to weld pieces up to 18mm thick
without preheating using MIG wire (SG2) or a 7018 electrode.
Over 18mm would require a pre-heat of 100°C (212°F) in order to
prevent cracking.
Anneal afterward is recommended to prevent breaking.
Supply Cities:
Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai,
Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi,
Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka,
Puducherry, Kerala, Tamil Nadu, Telangana, Salem, Thanjavur, Trichy,
Erode, Vellore, Ranipet, Sivakasi, Karur, Hosur, Nagercoil,
Kanchipuram, Karaikudi, Neyveli, Cuddalore, Kumbakonam,
Thiruvannamalai, Pollachi, Rajapalayam, Gudiyatham, Pudukottai,
Vaniyambadi, Ambur, Nagapattinam, Trivandrum, Vijayawada, Guntur,
Thirupathi, Nazarathpet, Kakinada, Kurnool, Kadapa, Nizamabad,
Mahabubnagar, Karimnagar.