ALLOY STEEL GRADES

We deal in all grades of alloy steels such as round bars, flat bars, square bars, hex bars and all other kinds of steel grades used in making drilling,mining,construction industries depening on their applications.we deal in steel size ranging from 90 mm diameter to 320 mm diameter which are procured from reputed manufacturers .we can supply special steel to our customers depending on their usage and application as per customer requirements at reasonable price.

We deal in alloy seamless pipe of different grades different sizes which are used in manufacturing drilling and mining products such as dth hammers, drill rod pipe and various other products.

ALLOY STEEL BARS & ROUNDS

Chrome Molybdenum Steel

Overview	We supply chromium molybdenum steel, chromium molybdenum nickel steel and chromium molybdenum tungsten steel to various engineering, power generation, oil & gas, petrochemical, welded tube fitting and nuclear industries. Our facilities enable us to cater to the specific requirement of the customers.
Application	Boiler Pressure Vessels, Tube & Pipe fittings, refinery equipments for elevated temperature service.
Grades	ASTM A387 Grade 11/ 12/ 22/ 5/ 9/ 91, EN 10028 -2 / DIN 17175 , ASTM A204 / A302, SAE 4130 / 4140 / 8620, EN 19 / EN 24 / EN 36
Supply Condition	Normalized & Tempered / Annealed / Normalized.

 

Abrasion / Wear Resistant Steel

Overview	The hardened boron steel is extremely resistant to abrasive wear and high surface pressure. The excellent mechanical properties of boron steels are achieved through heat treatment. It also offers good weldability with cold bending properties.
Application	Wherever demands are imposed on abrasion resistance e.g. dump trucks, excavators, loaders, chutes, conveyors, feeders etc.
Grades	500HB / 400HB / 300HB / 200HB
Supply Condition	Quenched & Tempered(If required)

 

Quenched and Tempered Steel

Overview	Quenched and tempered fine grained steel is used for welded steel structures having demands of low weight and high load.
Application	Pressure vessels, penstocks, bridges, transport vehicles, cranes, frameworks, conveying plants etc.
Grades	EN 10025-6-S500 / S550 / S620 / S690
Supply Condition	Quenched and Tempered

 

High Tensile Steel

Overview	The structural steel with high tensile properties is used for general construction so as to reduce the section weight.
Application	Fabrication, Engineering construction
Grades	EN 10025-2-S355 / S420 / S460. IS 2062 E350/ E410 / E450
Supply Condition	Normalised / Normalised Rolled

 

Corrosion Resistant Steel

Overview	It exhibits increased resistance to atmospheric corrosion compared to unalloyed steel as it forms and regenerates a protective layer under the influence of the weather.
Application	Steel frame structures, bridges, tanks, containers, exhaust systems etc.
Grades	ASTM A588 / A242. IRSM - 41
Supply Condition	Normalised Rolled / Normalised

 

Tool Steel

Overview	Hot & Cold work tool steels as per the Standard (A681) as well as customer requirement is produced based on design application, service condition and desired properties.
Application	Tools, Dies & Fixtures
Grades	A2 / H11 / O1 / D2 / D3/ S-13 / HCHCR
Supply Condition	Spherodise Annealed

 

Pressure Vessel Steels

Overview	This Carbon steel plates are intended for welded pressure vessels, iron sturctures where improve notch toughness is important.
Application	Pressure Vessel Boiler, Tube Fittings
Grades	ASTM A516 / A515. ASTM A537 CL.1 & CL.2
Supply Condition	Normalised / Normalise Rolled/ Quenched & Tempered

 

Other Alloy Steels

Overview	The various special steels having diverse applications are produced as per customer requirement.
Application	Automobile, Valves, Bearing, Extruders, Springs
Grades	16/20MnCr5,EN52, EN1A,EN41, EN31,56Si7,42CrMo4
Supply Condition	As Rolled / Annealed / Normalised / Quenched & Tempered

 

ALLOY SEAMLESS PIPE

Our Alloy seamless pipe is used in manufacturing drilling & mining Equipment mainly DTH Hammers & Drill rods. We can provide clients with seamless pipe according to their needs and specifications.

We have the following seamless pipe regularly in our stock grade is EN19 C used for making DTH Hammers.

85 mm diameter x 10 mm thickness

102mm diameter x 15 mm thickness

108mm diameter x15 mm thickness

110mm diameter x 15mm thickness

152mm diameter x 18 mm thickness

Length: standard length used for making hammers

1.42CrMo4 Alloy Steel Supply Range

 

42CrMo4 Round bar Sizes: 10mm – 3000mm

Steel 42CrMo4 Flat and Plate: 10mm-1500mm thickness x 200-3000mm width

Other steel shape and sizes available according to your requirements.

 

3.42CrMo4 Alloy Steel Chemical Composition

C(42CrMo4/1.7225)	Mn	Si	P	S	Cr	Mo
0.38-0.45	0.60-0.90	0.40 (max)	0.035(max)	0.035 (max)	0.90-1.20	0.15-0.30

 

4. DIN 42CrMo4 Alloy Steel Mechanical Properties

Size (Ø mm)	Yield stress Rp0.2,N/nn2, min.	Ultimate tensile Stress,Rm,N/nn2	Elongation A5,%, min	Hardness HB	Toughness KV, Joule, min.
<40	750	1000-1200	11	295-355	35 at 20ºC
40-95	650	900-1100	12	265-325	35 at 20ºC
>95	550	800-950	13	235-295	35 at 20ºC

 

5. Heat Treatment of 42CrMo4 Steels

Annealing of 42CrMo4 Steels

• Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;

• Cool slowly in the furnace to the temperature 480°;

• Complete annealing the steel in the air.

 

Quenched and Tempered (Q+T)

• Heat 42CrMo4 steel slowly to 880°C;

• Soak at this temperature then quench in oil;

• Temper as soon as 42CrMo4 steel reach room temperature (20°C);

• Heat uniformly to the suitable temperature of 560°C;

• Withdraw the 42CrMo4 material from the furnace and cool in the air.

6. Forging of 42CrMo4 Alloy Steel

• Preheat 42CrMo4 engineering steel uniformly and slowly;

• Increase the forging temperature up to 1150-1200°C.

• Always keep the forging temperature above at least 850°C

7.Weldability

Engineering steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is strongly recommended; the upper limit should not be exceeded because of risk for deterioration of the chrome layer.

Alloy steel 42CrMo4 can be friction welded. However, precautions are necessary so as to limit the formation of undesirable microstructures in the welded zone.

8.Application of 42CrMo4 Alloy Steels

EN 42CrMo4 alloy steel is widely used for engineering steel purpose, such as: making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the connecting rob, the pinchock under the high pressure, parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.