Product Applications

Sunflag steel caters to the demands of various core sectors of the economy like Automobiles, Railways, Defense, Tractors and agricultural implements, and Engineering industry. The specialty steels for various applications are being produced by us as per National and International Standards conforming to DIN, SAE/AISI/ASTM, EN, GIS, GOST, IS grades.

Our main products comprise of the following :

  Spring Steel: This steel is used for manufacturing various types of springs and components for suspension mechanism in Automobiles and Railways. Springs are in the form of Leaf spring made out of flat bars or coil spring made out of round bars. Stabiliser bars/anti-roll bars and torsion bars for automobiles can also be manufactured out of our round bars.

A very high degree of quality, reliability and service life achieved in springs manufactured from our steel helped us in establishing our market leadership.

Grades :

EN45A as per BS 970 55SI7, 60SI7, 65SI7, 50CR4V2, 60CR4V2 as per IS 3195 65SI7, 50CRV4, 51CRMOV4, 60SICR7 as per DIN 17221 SUP6, SUP9, SUP9A, SUP11A as per JIS G 4801

 
  Carbon Steel : This steel has wide ranging application in manufacture of crank shafts, axle beams, connecting rods, bolts and nuts, shafts, keys, machine components etc. Our steel is well accepted by Forging units. Bright bar manufacturers, and machined components manufacturers.

Grades :

CL1A TO CL5 as per IS 1875 35C8, 45C8 as per IS 3930 EN32B, EN5K, EN3A, EN8, EN8D, EN9 as per BS 970 CK35, CK45 as per DIN 17200 SAE1015 TO 1055 as per SAE 1976

  

 
  Alloy Steel: This steel contains various alloying elements like chromium, nickel, molybdenum, vanadium, manganese, silicon, boron etc. depending upon the end usage. Addition of alloys helps in improving mechanical properties such as impact, hardness, tensile strength, yield stress etc. Our steel has diverse applications in manufacture of components for automobiles like crank shafts, piston rods, steering components, axles, gears and high resistance screws.

The narrow band of Jominy hardness, strict chemical composition, close dimensional tolerance, freedom from surface defects are some of the special features of our steel.

Grades :

16MNCR5, 20MNCR5 as per DIN 17210 EN14A, EN14B, EN15A, EN15B as per BS 970 20CI5, 27CI5, 27CI5 as per IS 5517

40CR4, 50CR4 as per IS 3930 15CR3, 41CR4 as per DIN 17210 EN18, EN18D as per BS 970 EN16, EN17, EN19, EN24, EN353 as per BS 970 40CR4M03 as per IS 4432 SAE4140 as per SAE 1976

 
  Free Cutting Steel: This steel is manfactured with special additon of Sulphur for improving the machinability fo the bars used for mass production of components in automats and CNC machines. It is extensively used for making engine shafts, connecting rods, spindles, gears, fasteners, hydraulic hose end fittings etc.

Grades : EN1A, EN1A-LEADED(12L14), EN7, EN8M, EN15AM as per BS 970 AISI1117, AISI1137, AISI1146 as per SAE 1976

 
  Ball Bearing Steel: Steel containing carbon around 1% and chromium around 1.5% achieves excellent hardness and fatigue properties after suitable heat treatment and is used for manufacture of all types of anti-friction bearings.

Grade :

SAE52100 as per SAE 1976

 


SUNFLAG IRON & STEEL CO. LTD

33 Mount Road, Sadar, Nagpur 440 001
India

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