Alloy Steel Round Bar

  • EN 19
  • EN 24
  • EN 31
  • EN 353
  • SAE 4140
  • SAE 8620
  • 16MNCR5
  • 20MNCR5
  • 42CRMO4
  • SCM 420
  • SAE 52100

EN19

Alloy Steel Round Bar is a high quality alloy steel with tensile strength. 709M40 (EN19) Low Alloy 1% Chromium-Molybdenum Through-Hardening Steel. With a combination of good ductility and shock resistance, EN19 is suitable for applications with very high loading such as engine gear boxes. Popular in the automotive sector it is possible to machine the material extremely accurately, in recent years EN19 has become an established material in the Oil & Gas sector. The material lends itself well to any application where strength is a primary consideration. 

Material description:

A through-hardening steel capable of surface hardening by nit riding. Material can be supplied untreated, annealed or Q & T. Bars commonly supplied in the heat treated condition. A low alloy steel that possesses good tensile and shock resistance properties. Wear resistance can be increased by flame hardening and is suitable for nit riding. Applications axles, shafts, gears and induction harden pins

Key Features:

EN19 Engineering Steel is a high tensile steel with good ductility and shock resistance. The alloy offers good wear resistance too and can be case hardened. It is a high quality alloy engineering steel.

Typical Applications:

Automotive gears and parts

Shafts                 

Towing pins                    

Load bearing tie rods

Oil & Gas industry applications.

EN24

Engineering Steel

EN24 is a very high strength steel alloy which is supplied hardened and tempered.

The grade is a nickel chromium molybdenum combination – this offers high tensile steel strength, with good ductility and wear resistance characteristics. With relatively good impact properties at low temperatures, EN24 is also suitable for a variety of elevated temperature applications.

Key Features:

EN24 Engineering Steel is easy to treat and temper and is supplied hardened and tempered. The alloy offers a good combination of strength, ductility and wear resistance. It is a very high strength alloy engineering steel.

Typical Applications:

High strength shafts

Punches & dies

Drill bushings

Retaining rings

Gears.

EN31

EN31 is a very high strength steel alloy which is hardened and tempered before supplying and has nickel, chromium, molybdenum making it high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, EN31 is also suitable for a variety of elevated temperature applications. EN31 round bars have good internal strength and high external strength, which makes it highly wear resistant. EN31 steel round bars offer good combination of ductility, strength and wear resistance. EN31 is a very high strength alloy engineering steel.      

Equivalent grades of EN31 round bars

BRITISH BS 970:1991 535A99

BRITISH BS 970:1955 EN31

GERMAN DIN 100CR6

FRENCH AFNOR 100C6

SWEDISH SS 2258

AMERICAN SAE 52100.

En353

EN353 is a very high strength steel alloy which is hardened and tempered before supplying and has nickel, chromium, molybdenum making it 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 it highly wear resistant. EN353 steel round bars offer good combination of ductility, strength and wear resistance. EN353 is a very high strength alloy engineering steel. EN 353 steel has carbon content material of 0.17 % & probably the most usual form of steel, because the carbon content material raises, the material becomes tougher & harder. This grade is in general used for a lot of automobiles functions comparable to heavy duty tools, shaft, pinion, cam shafts and gudgeon pins.

Equivalent grades of EN353 round bars

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.

Application

Acceptable for many automobile applications such as heavy duty gear, shaft, pinion, camshafts, and gudgeon pins. / machining components.

SAE 4140

AISI 4140 steel is an engineering alloy steel containing chromium and molybdenum. It falls in a class of low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. It can be heat treated in a number of ways to give it a combination of properties.

Mach-inability

AISI 4140 alloy steel has good mach inability in the annealed condition.

Forming

AISI 4140 alloy steel has high ductility. It can be formed using conventional techniques in the annealed condition. It requires more pressure or force for forming because it is tougher than plain carbon steels.

Welding

AISI 4140 steel can be welded using all conventional techniques. However, the mechanical properties of this steel will be affected if it is welded in the heat treated condition, and post weld heat treatment should be performed.

Heat Treatment

AISI 4140 steel is heated at 845°C followed by quenching in oil. Before hardening, it can be normalised by heating at 913°C for a long period of time followed by air cooling.

Forging

AISI 4140 steel is forged at 926 to 1205°C.

Hot Working

AISI 4140 steel can be hot worked at 816 to 1038°C.

Cold Working

AISI 4140 alloy steel can be cold worked using conventional methods in the annealed condition.

Annealing

AISI 4140 steel is annealed at 872°C followed by slowly cooling in the furnace.

Tempering

AISI 4140 alloy steel can be tempered at 205 to 649°C depending upon the desired hardness level. The hardness of the steel can be increased if it has lower tempering temperature. For example, tensile strength of 225 ksi can be achieved by tempering at 316°C (600°F), and a tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F).

Hardening

AISI 4140 alloy steel can be hardened by cold working, or heating and quenching.

AISI 8620

Alloy steels contain a wide range of steels whose compositions exceed the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B fixed for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels. AISI 8620 alloy steel is a common, carburizing alloy steel. This alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. The following datasheet will provide more details about AISI 8620 alloy steel.

Applications

The AISI 8620 can be used for a number of medium-strength applications such as camshafts, fasteners, gears, and chains/chain pins.

16MNCR5

16MnCr5 steel are alloyed case hardening engineering steels for parts which require core tensile strength of 800 – 1100 N/mm² and good wearing resistance. It is an engineering material typically used to manufacture piston bolts, camshafts, levers and other vehicle and mechanical engineering components.

Soft Annealing

Heat to 650-700oC, cool slowly.

Intermediate Annealing

Temperature: 650-680oC.

Normalising

Temperature: 850-880oC.

Carburizing

Temperature: 880-980oC.

Case Hardening

Temperature: 780-820oC.

Core Hardening

Harden from a temperature of 860-980oC followed by water, oil or thermal bath quenching.

Tempering

Tempering temperature: 150-200oC.

Forging

Hot forming temperature: 1100-850oC.

20MNCR5

20MnCr5 steel are low alloyed engineering case hardening steel for parts which require core tensile strength of 1000 – 1300 N/mm² and good wearing resistance. It is used in boxes, piston bolts, spindles, camshafts, gears, shafts and other mechanical controlling parts.

Equivalent other international grades similar to 20MnCr5 steel

AFNOR : 20MC5

SAE : 5120

Soft Annealing of 20MnCr5 steel

Heat to 650-700 oC.

Carburizing

Temperature 900-950 oC . Cooing from carburizing temperature: water, oil, air, thermal bath, cooling box.

Hardening

Core hardening 850 – 880 oC. Case hardening: 810 -8400C. Quenching media: water, oil, air, thermal bath.

Tempering

Tempering temperature: 170-200 oC.

Forging

Hot Forming temperature: 1100-850 oC.

20MnCr5 grade steel is a case hardening steel used extensively for both carburizing and carbonitriding, demonstrating reasonably high harden-ability and excellent forge ability.

This grade also has excellent weld ability, however care should be taken to avoid weld cracking.

Mach inability is approximately 80% that of mild steel.

Typical applications

Gears

Pins

Shafts

Camshafts

Drive wheels

Clutch plates.

42crm04

42CrMo4 Steel – SAE-AISI 4140 is classified as low alloy steel. Medium carbon steels are high strength steels which include EN19 as an important member in low alloy category. These steels show positive response to all variety of heat treatments. 42CrMo4 is a 1% chromium – molybdenum medium hardenability general purpose high tensile steel – generally supplied hardened and tempered in the tensile range of 850 – 1000 Mpa (condition T). 42CrMo4 is a high quality, high tensile alloy steel usually supplied readily machine able in ‘T’ condition, giving good ductility and shock resisting properties combined with resistance to wear. We specialise in the supply of EN19, 4140, 42CrMo4 Hot Rolled Steel Round Bars.

Equivalent grades of 42CrMo4 round bars:

AISI 4140, SAE 4140, 42CrMo4, 42CrMoS4, Din 1.7225

Equivalent grades of 42CrMo4 round bars:

EN Name En19

EN Number 1.0503, 1.1191, 1.1193, 1.1194

DIN C45, CK45, CF45, CQ45

BS 970 060A47, 080A46, 080M46

UNI C45 1C45, C46, C43

JIS S45C, S48C.

SCM420

SCM420 steel is a  low carbon chrome moly steel used to manufacture surface carburized parts used in auto parts, machinery, capital goods, shafts, fasteners, etc. which work in non-corrosive environments usually below 250C.

It has high quench harden ability. SCM420 has good weld ability

PRODUCT ADVANTAGES

It has high strength and toughness

It has high harden ability

It has good thermal strength property

It has good mechanical properties. 

SAE 52100

Alloy steels contain different varieties of steels that exceed the composition limits of Mn, C, Mo, Si, Ni, Va, and B set for carbon steels. They are designated by AISI four-digit numbers. They respond more quickly to mechanical and heat treatments than carbon steels. AISI 52100 alloy steel is known as a high carbon, chromium containing low alloy steel. The following datasheet gives an overview of AISI 52100 alloy steel.

Fabrication and Heat Treatment

Mach inability

AISI 52100 alloy steel can be machined using conventional techniques. The mach inability of this steel can be improved by performing shepherding annealing process at 649°C (1200°F) before machining.

Forming

AISI 52100 alloy steel can be formed using all conventional techniques such as cold forging or stamping and hot or cold upset forming techniques.

Heat Treatment

AISI 52100 alloy steel is heated at 816°C (1500°F) followed by quenching in oil. Before performing this process, it is subjected to normalising heat treatment at 872°C (1600°F) followed by slowly cooling in order to reduce the machining stress.

Forging

AISI 52100 alloy steel is forged at 927 to 1205°C (1700 to 2200°F).

Hot Working

AISI 52100 alloy steel can be hot worked at 205 to 538°C (400 to 1000°F).

Cold Working

AISI 52100 alloy steel can be cold worked using conventional techniques in the annealed or normalised conditions.

Annealing

AISI 52100 alloy steel is annealed at 872°C (1600°F) followed by slowly cooling to reduce cold working or machining stress.

Hardening

AISI 52100 alloy steel is hardened by cold working, or heating and quenching. It can be carburized at 913°C (1675°F) followed by quenching. It is again heated at 788°C (1450°F) followed by quenching for the second time.

Applications

AISI 52100 alloy steel is used in bearings in rotating machinery

 

Call Now ButtonClick to Call Us