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Round Bars

Round Bars in Various Sizes

Mahamaya Corporation Manufactures and  supplies the best round Steel Bars for a multitude of applications and in various grades in carbon steel, alloy steel, stainless steel, tool and die steel etc.

Manufacturing Process for Round Bars

The round bars are made from ingots and are processed after giving required reduction ratio and discarding hot top and bottom for homogeneity. They are either processed by hot rolling or hot forging. These bars are further heat treated by

  • Annealing
  • Normalizing
  • Stress Relieving
  • Quenching and Tempering
  • Spheroidizing Annealing

They are also offered in bright condition by 

  • Peeling and Reeling (for upto 120mm for rolled)
  • Cold drawing (for upto 65mm)
  • Proof machining (greater than 120mm)
  • Finish CNC machining

They are also offered in

  • Cut to length
  • Multiple lengths

Quality Check of Round Bars

Following checks are conducted in round bars and reported in the TEST CERTIFICATE as per customer requirement

  • Surface inspection (Magnetic Particle Inspection) is carried out of each bar end to end
  • Positive Material Identification using XRF to certify in process chemistry of each bar
  • 100%-dimensional verification using calibrated Vernier’s and Go No-Go gauges
  • Step down testing
  • Upset forging test
  • NMIR (Nonmetallic inclusion rating)
  • Macrostructure testing
  • Microstructure phase analysis
  • Grain Size
  • Ultrasonic Testing for internal defects
  • Radioactivity test
  • Gas analysis (O, N, H)

Application and End-Use

Various companies use our steel round bars for making final products in industries such as Oil and Gas, Power, Mining, Engineering Goods, Fasteners, Railways, Defence, Load cells, Toolings, etc

Steel Round Bar in Different Grades and International Specifications

We are manufacturing bars in various grades and exporting them worldwide. We are a leading exporter of economic and best quality bars to the Czech Republic, UK, Israel, etc.

We manufacture the following popularly used grades:

EN19, EN24, EN25, EN26, EN30, EN31, EN36C, EN39, EN 40, EN41B, EN42, EN9, EN14A, EN15, EN16, EN18, EN47, EN100, EN351, EN353, EN354, EN355, C22E, C25E, C30, C35E, C45, CK45, C50, C55, C60, S45C, S235J2, S275J2, S355J2, ST52.3, C35E, C45R, 35B2, 28Mn6, 46Cr2, 34Cr4, 41Cr4, 20Mn5, 42CrMo4, 50CrMo4, 30CrNiMo8, 34CrNiMo6, 36CrNiMo4, 36NiCrMo16, 51CrV4 27MnCrB5, 32CrB4, 25CrMo4, 20MnCr5, 16MnCr5, 16MnCrS5,17CrNiMO6, 18CrNiMo7, 20MnB4, 23MnB4, 23MnB3, 34CrMo4V, SS410, SS416, SS420, SS431, SCM420, SCM440, 13Ni13Cr3, 15Ni16Cr5, 36Si7, 40Cr4, 15Ni5Cr4Mo1, 15Ni7Cr4Mo2, 16Ni8Cr6Mo2, 36Si7, 37C15, 35Mn6Mo3, 40Ni6Cr4Mo3, 40Ni10Cr3Mo6, 55Si7, 50Cr4V2, 25Cr13Mo6, 10C8S10, 14Cr14S14, 25C12S14, 40C10S18, 11C10S25, 40C15C12,

SAE 1010, SAE1025, SAE1030, SAE 1035, SAE 1040, SAE 1117, SAE1541H, SAE4130, SAE4135, SAE4140, SAE4145, SAE4145H, SAE 4330, SAE 4340, SAE 4820, SAE5160, SAE8620, SAE 8630, SAE8640, SAE52100, SAE9310, AISI1010, AISI1025, AISI1030, AISI 1035, AISI 1040, AISI 1117, AISI1541H, AISI 4130, AISI4135, AISI4140, AISI4145, AISI4145H, AISI 4330, AISI 4340, AISI4820, AISI 5160, AISI 8620, AISI 8630, AISI 8640, AISI 9310

BS970 080A15, 080M15, 070M20, 080A30, 080M30, 080M40, 080A42, 080A47, 080M50, 070M55, 150M19, 150M36, 045A10, 045M10, 080M15, 210M15, 635M15, 637M17, 655M13, 665M17, 805M17, 805M20, 815M17, 820M17, 822M17, 835M15, 530M40, 605M36, 606M36, 708M40, 709M40, 722M24, 817M40, 826M31, 826M40, 945M38, 410S21, 416S21, 416S29, 420S29, 420S37, 431S29

EN 10088-3 X12Cr13, X20Cr13, X30Cr13, X17CrNi16-2

ASTM A105, ASTM A182 F5, ASTM A182 F9, ASTM A182 F11, ASTM A182 F12, ASTM A182 F22, ASTM A182 F91, ASTM A182 F92, ASTM A350 LF2, ASTM B16, ASTM A193 B7, ASTM A193 B16, ASTM A266 Grade 1-2-3 and 4, ASTM A29 all grades, ASTM A540 B21, ASTM A540 B22, ASTM A540 B23, ASTM A540 B24, ASTM A540 B24V

X22CrMoV121, 21CrMov57, 40CrMoV4-6, 27NiCrMoV15-6, 26 NiCrMo 14-6, 20CrMoVTiB4-10, X19CrMoNbVN11-1, X10CrMoVNb9-1

DIN 1.2714/DB6, DIN1.2343/AISI H11, Din 1.2344/AISI H13

GOST 4543-71 33XC, 38XC, 40XC, 45XH, 30XH3A, 12X2H4A, 20X2H4A, 20X2H4MA, 18X2H4MA, 30XGCA, 40ХН2МА, 40Х2Н2MA, 30ХН2МА

Process

Size (mm)

Hot Rolled

32 to 180

Hot Forged

100 to 450

Process Size (mm) Hot Rolled - 32 to 180 Hot Forged - 100 to 450