Alloy 20 Round Bar

ASTM B473 Alloy 20 Round Bar Stockist in Mumbai India. ASTM B473 Alloy 20Cb-3® Hex Bar, Flat Bar, Forged Bar, Square Bar Alloy 20 Bright Bar Stockist and Supplier in Mumbai India.


Alloy 20 round bars are high-performance bars designed for superior resistance to corrosion and acid attack. These bars perform well in harsh environments and across demanding industries. Preston Pipes & Alloys, a leading Alloy 20 round bar supplier, exports bars that meet precise industry needs. These bars are very strong, resistant to wear and have a long lifespan. Common applications include cement plants, shipbuilding projects, paper and pulp processing, fasteners, textile equipment, automobile parts, machinery parts, and defense applications. As it offers a perfect combination between strength, and corrosion resistance, alloy 20 bars are still a dependable option for demanding applications.


Nickel, iron, chromium, copper, molybdenum and other essential elements are present in alloy 20, which provides outstanding chemical properties. The mixture provides high corrosion resistance, particularly against acids such as sulfuric, and phosphoric. It also offers strong mechanical properties, with a tensile strength of 80,000 psi, yield strength of 35,000 psi and elongation of 30%. The material keeps its integrity under high temperatures due to its melting point of 1443°C. Alloy 20 round bar pipe suppliers provide variants like annealed, or polished bars for different operating needs, making it suitable for both structural, and high precision work.


Alloy 20 Round Bar

Alloy 20 bars follow ASTM B473/ASME SB473 standards for quality and consistency. The grade B473 UNS N08020 is available in multiple forms, such as round, square, hex, flat, billet and wire. Sizes range from 15NB to 150NB, with diameters from M6 to M48 or 1/4’’ to 2’’. Cold drawn or extruded methods are used for manufacturing bars, which range in length from 100 mm to over 3000 mm. Black, rough-turned, and bright-polished are the common finishes. Bars are being supplied in cold drawn and polished or centerless-ground and polished forms with surfaces such as hot rolled pickled, or cold drawn bright to meet the needs of the application.


Strict quality checks are performed on each batch of Alloy 20 bars to ensure durability, and performance. Magnetic particle inspection, mill test certifications and third party inspection reports are among the tests. To avoid damage during transportation, bars are carefully packaged in wooden boxes, plastic bags, or bundled with steel strips. Alloy 20 round bar stock is kept ready for reliable use in any project, due to our commitment to quality, and safe delivery. Contact for high-quality Alloy 20 bars that match industry standards and application demands.

Alloy 20 Round Bar Specification

Specifications ASTM B473 / ASTM SB473
Dimensions EN, DIN, JIS, ASTM, BS, ASME
Size 5 mm To 500 mm
Diameter 0.1 mm to 100 mm
Length 100 mm To 3000 mm Long & Above
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Common Type of Alloy 20 Round Bar

Alloy 20  Hex Bar

Alloy 20 Hex Bar

Alloy 20  Bright Bar

Alloy 20 Bright Bar

Alloy 20  Cold Rolled Bar

Alloy 20 Cold Rolled Bar

Alloy 20  Flat Bar

Alloy 20 Flat Bar

Alloy 20  Square Bar

Alloy 20 Square Bar

Alloy 20  Rectangular Bar

Alloy 20 Rectangular Bar

Alloy 20  Polished Round Bar

Alloy 20 Polished Round Bar

Alloy 20  Hollow Bar

Alloy 20 Hollow Bar


Contact Preston Pipes and Alloys for best offer & competitive
quotation of Alloy 20 Round Bar

Alloy 20 Round Bar Chemical Composition

Grade C Mn Si S Cu Ni Cr Fe Mo P
Alloy 20 0.07 max 2.00 max 1.00 max 0.035 max 3.00 – 4.00 32.00 – 38.00 19.00 – 21.00 29.85 min* 2.00 – 3.00 0.045 max

Alloy 20 Round Bar Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi - 80,000, MPa - 551 Psi - 35,000, MPa - 241 30 %

Alloy 20 Round Bar Equivalent Material

STANDARD WERKSTOFF NR. UNS EN AFNOR
Alloy 20 2.4660 N08020 NiCr20CuMo Z2NCUD31-20AZ

Alloy 20 Round Bar Weight Chart

Diameter Weight Chart Dia Weight Chart
(mm) per metre (kg) (in) per metre (kg)
3mm 0.06 1/8" 0.06
4mm 0.10 3/16" 0.14
5mm 0.16 1/4" 0.25
6mm 0.22 5/16" 0.39
7mm 0.30 3/8" 0.56
8mm 0.40 7/16" 0.77
10mm 0.62 1/2" 1.00
12mm 0.89 9/16" 1.22
14mm 1.22 5/8" 1.56
15mm 1.40 11/16" 1.89
16mm 1.59 3/4" 2.25
18mm 2.01 7/8" 3.07
20mm 2.48 1" 4.03
22mm 3.00
24mm 3.57
25mm 3.88

Industrial Application of Alloy 20 Round Bar