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S355 steel stockholders and suppliers, delivering to the whole of the India. We are suppliers of S355 grades in steel plate, round bar and flat bar.

S355 steel round bar is belong to low alloy steel bar. S355 steel is widely used in bridges, ships, power stations, boiler, pressure vessel, oil tank, lifting transportation machinery and so on. The following is more information about S355 steel round bar details.

Also See Our EN Standard Pipe


Specification :


Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Size 5 mm To 500 mm
Diameter 0.1 mm to 100 mm
Length 100 mm To 6000 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),Flate, Rectangle, Billet, Ingot, Forging Etc.
Stainless Steel ASTM A-479, A-182, 304, 304L,304H,304S, 316, 316L,316 Ti, 316H, 309, 310, 310S, 317L, 321, 347, 409, 410, 420, 430, 440, 446, 904L. etc.
Duplex Steel 2205, 31803, 32750, 32760, 2101, 2304.
Alloy Steel A-182 - F5, F9, F11, F12, F21, F22 & F91
Special Grade Stainless Steel 17-4 PH, Alloy 800, Alloy 600. Hastelloy C276.
Carbon Steel A 105, LF 2, Duplex Steel.

S355 High Yield Strength Round Bar Equivalent Grades

Standard EU US
EN 10025 S355 A572Gr50

S355 High Yield Strength Round Bar Chemical Composition

C Mn P S Si
0.23 max. 1.6 max. 0.05 max. 0.05 max. 0.05 max.

S355 High Yield Strength Round Bars Mechanical Properties

Tensile strength, Rm, MPa (N/mm2) 0,2% Yield strength, Rp0, 2min, (MPa) Brinell hardness, HB max
470 – 630 355 146 – 187



Types of Round Bar Available



Marking & Packing


Our Nickel Alloy 2.4066 round bars are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All Nickel Alloy UNS N02200 bar are marked with Grade, Lot No, Size and our trade mark. We can also make custom marking on our products on Special request from Purchaser.


Quality Assurance


Triton Alloys Inc all Nickel Alloy 200 round bars, Nickel Alloy 200 bright bars and Nickel 200 hex bars are subject to strict inspection at each stage starting from material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, DIN, EN, and JIS codes and standards. We can also appoint official certified Inspection Agencies upon request of our clients so that they can witness the material reports, dimensions and quality conformity of products.

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