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Grade Introduction:
We are EN353 Alloy Steel Round Bar manufacturers and we are manufacturing from prime quality billets and blooms. The range of EN353 Round Bars which we manufacture for our customers are of high quality and these round bars are used for making machinery and Auto components. These products have been made keeping in mind the quality parameters that have been set by the industry in the market. EN353 Round Bars are always supplied with the test certificates and can be supplied in bulk quantity as well as retail quantity as per customer’s requirements. EN353 alloy Steel round bars are supplied by us to various industries.

EN353 Alloy steel is a very high strength steel alloy that is hardened and tempered before supplying and has nickel, chromium, molybdenum making its high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, EN353 is also suitable for a variety of elevated temperature applications. EN353 round bars have good internal strength and high external strength, which makes them highly wear-resistant. EN353 steel round bars offer a good combination of ductility, strength, and wear resistance. EN353 is a very high-strength alloy engineering steel.
 
Grade Application:
Acceptable for many automobile applications such as heavy-duty gear, shaft, pinion, camshafts, gudgeon pins.
 
Equivalent grades:
BRITISH BS 970:1991 815M17
BRITISH BS 970:1955 EN353
GERMAN DIN 20NiCrMo5
FRENCH AFNOR 20NCD5
SWEDISH SS 2523
EUROPEAN STEEL NAME 17NiCrMoS6-4
EUROPEAN STANDARD EN10277-4
 
Addition to other grades:
MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, 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:
 
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Chemical composition:
The following table shows the chemical composition of EN353 steel:
ElementCSiMnSPChMoNi
Content (%)0.10-0.200.10-0.350.50-1.000.040 Max0.040 Max0.75-1.250.08-0.151.00-1.50
 
Mechanical Properties:
Mechanical Properties
Hardening840-870
Quenchingoil
Tempering150-200
Brinell Rockwell Hardness150-200
Other Details of Property
AnnealedRSTUVWY 
Ruling Section (mm)1501501006565303025
Tensile Strength (MPa)680/720690/850770/930850/ 1000930/ 10801000/11601080/12401280
Yield Stress (MPa)440/4804805706657408358951050
Elongation (% Min)2215151312121010
ISO V Impact (Joule)303030302525227
Hardness (Brinell)190/210201/255223/277248/ 302269/ 321293/ 341311/ 375363/415
Proof Stress (0.2%) if required (MPa, Min) 495550630710770850985
 
Hardness:
HB – 270 
 
Heat treatment: 
The hardening treatment for most steels consists of heating the steel to a set temperature and then cooling it rapidly by plunging it into oil, water. EN8 and EN353 steel is an easily available and cheap material that is acceptable for heavy-duty applications.
 
Hardening:
Hardening °C 780-820.
 
Tempering:
EN353 is re-heated to 780C – 820°C, holding until the temperature is uniform throughout the section, and then quenched in oil, Tempering must be done immediately while the component EN353 is still handed warm. Heat to 150C – 200°c, soak it for 1 – 2 hours / 25mm of a section, and then cooled in still air. Hardness after Tempering: 62-64 HRC.
 
Physical Properties:
Thermal Conductivity at °C20350700
W/(m*K)11.313.314.5
 
Thermal Properties:
Thermal Conductivity at °C20350700
W/(m*K)11.313.314.5
 
Forging Properties:
EN353 steel round bars offer a good combination of ductility, strength, and wear resistance. EN353 is a very high-strength alloy engineering steel.
Stress Relieving:
150-200, cooled in the furnace. 
1st pre-heating °C: Up to approx. 400 in an air-circulating furnace
2nd and 3rd: 780 and 805°C.
 
Normalizing:
860 – 890°C in air.
 
Annealing:
630-670°C
 
Density:
DENSITY (G/CM 3)8.08
DENSITY (LB/IN 3)0.292
 
Machinability:
75
 
Welding:
Pre/post heat precaution required.
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.