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Alloy steel round bar

Alloy Steel Round Bar

What is an alloy steel round bar?

This bars uses a steel alloy comprising some other elements like nickel, chromium, and molybdenum. An alloy steel round bar gets produced in different grades, like 4130, 4140, and 4340 or f5, f9, f11, etc.

The additions enhance mechanical and chemical properties, like corrosion and fatigue resistance, strength, hardness, and overall durability.

Low alloy steel rod manufacturer in India

What is the composition of an alloy steel hex bar?

These products contain iron with various alloying elements between 1 and 50%. The usual additions are nickel, chromium, and molybdenum, with smaller amounts of carbon, manganese, vanadium, silicon, and boron. For example, a 4140 alloy steel rod has between 0.80 to 1.1% chromium, 0.75 to 1% manganese, and molybdenum up to 0.25%.


Specification of alloy steel round bars


Specifications Alloy steel round bar size range Thickenss
  • ASTM A182
  • ASME SA 182
  • 4 - 500mm OD
  • 0.5mm to 500mm
Alloy metal rod length AS hex bar temperature range Low alloy flat bar melting point
  • Up to 50 feet
  • Up to 550°C
  • 1425°C
Chrome moly square bar finish Dimensions Cold rolled alloy steel round bar form
  • Black
  • Matt finish
  • Bright polished
  • BA finish
  • Rough turned
  • EN
  • AISI
  • DIN
  • ASME
  • JIS
  • BS
  • ASTM
  • Round
  • Square
  • Hex
  • Rectangualar
  • Flat bar
Alloy steel metal rectangular bar tolerance & straightness Chromoly rounds certifications Hot rolled alloy steel bar manufacturing methods
  • 4000 series: +/-0.004"
  • F1 to F91: H8 to H11
  • Failure Analysis
  • 3.1 certification
  • Non Destructive Testing
  • Mechanical Testing
  • PMI
  • Cold Drawn
  • Hot Rolled
  • Forged

Sizes of chromoly bars


Chromoly bars sizes
 

We are alloy steel hex bar supplier in Mumbai, our stock is always ready to meet their demands

What are the characteristics of an alloy steel flat bar?

An alloy flat bars has improved longevity and oxidation resistance over regular or carbon steels. The tensile strength is between 850 and 1000mpa. an AS cold drawn bars is corrosion-resistant and protects against abrasive agents without pitting or cracking.

We are alloy steel bar manufacturer in India, we provide custom sizes, We transport alloy steel rods to Jamaica, the Bahamas, and Denmark in 10 days.

Types of alloy steel rod


Low alloy flat bar

Low alloy flat bar

Chromoly hex bar

Chromoly hex bar

Alloy steel square bar

Alloy steel square bar

Chrome moly bright bar

Chrome moly bright bar

Alloy metal rectangular bar

Alloy metal rectangular bar

Cold rolled alloy steel bar

Cold rolled alloy steel bar

AS hot rolled bars

AS hot rolled bars

Alloy steel metal annealed bar

Alloy steel metal annealed bar

Low alloy forged round bar

Low alloy forged round bar

Manifest Alloys's commitment to quality is evident in the rigorous testing methods we use for our alloy steel cold drawn and flat bars

What role do testing methods play in the development of a new and improved AS round bar?

Meticulous testing of an AS polished bars helps confirm its coveted properties, like corrosion resistance and durability. Manufacturers conduct tests for tensile strength, hardness, flaring, and chemical composition. The typical procedures are pmi (positive material identification) and igc (inter-granular corrosion).

Interpreting test results helps producers eliminate common defects,thereby improving the future development of an alloy round bars.

Chemical composition of alloy steel flat bar


Grade Mn Ni Cr C Si Mo S P
A182 F91 0.30-0.60 0.40 Max 8.0-9.5 0.08-0.12 0.20-0.50 0.85-1.05 0.010 Max 0.020 Max
A182 F5 0.30-0.60 0.50 Max 4.0-6.0 0.15 Max 0.50 Max 0.44-0.65 0.030 Max 0.035 Max
A182 F22 0.30-0.60 - 2.00-2.50 0.05-0.15 0.50 Max 0.90-1.10 0.040 Max 0.035 Max
A182 F9 0.30-0.60 - 8.0-10.0 0.15 Max 0.50- 1.00 0.90- 1.10 0.030 Max 0.030 Max
A182 F1 0.30-0.60 0.50 Max 3.0-5.0 0.15 Max 0.50 Max 0.40-0.50 0.030 Max 0.035 Max
A182 F11 0.40-0.65 - 1.00-1.50 0.10-0.20 0.50-0.80 0.44-0.65 0.040 Max 0.025 Max
Our alloy steel square bars and forged bar are renowned for their superior performance in even the most challenging environments

How do alloy steel square bars improve performance in demanding applications?

Hot rolled AS round bars cater to the pressing needs of bridge construction, heavy machinery, and oil and gas, delivering reliable performance with reduced corrosion and wear and tear. An alloy steel circle produces fasteners, gears, and engine mounts for commercial aircraft.

Mechanical properties of alloy bright bars


Grade Tensile strength Elongation Yield strength(0.2% offset)
F1, F11, F22, F91 570 23 295
F5, 9 275 485 20
Don't miss out on the chance to experience the uniqueness of our hot rolled alloy round bars, and also look into the manufacturing process of alloy steel bright bar

What is the manufacturing process of our hot rolled alloy steel round bars? How does it impact their quality and consistency?

The production uses either hot rolling or cold drawing with quality control at each stage for consistency. We use only premium raw materials after a thorough inspection. After shaping into the required form, for instance, an alloy steel welding rod and AS ring, we conduct macro and micro testing before packaging and shipping. Suitable heat treatments like annealing and quenching can meet specific needs.

Equivalent grade of AS forged bars


Grade Werkstoff nr. UNS
F1 1.5415 K12822
F11 1.7335 K115
F22 1.7380 K21590
F91 1.4903 K90901

Test certificates of alloy steel round bars


Alloy steel round bars test certificates
 

Tolerance of alloy steel rod



Diameter tolerances Round bar diameter, in.
4130-normalized., 4140-annealed round. Cold finish +/- 0.005" Over 1.5 to 2.5
4130-normalized., 4340-Norm, 4140-annealed round. Cold finish +/- 0.004" Up to 1.5
4130-normalized. Cold finish +/- 0.007" Over 4 to 6
4130-normalized., 4140-annealed round. Cold finish +/- 0.006" Over 2.5 to 4