Welcome to BBN Steel Materials Factory

20# Round Bar C20 Carbon Steel Round Bar

FOB Reference Price: Get Latest Price

Description: 20# Round Bar belongs to low-carbon carbon steel, which is cold extruded, carburized and quenched steel. 20# Round Steel Bar belongs to the GB/T 699-2015 standard. 20# Round Bar has low strength, contains elements such as carbon, silicon, and manganese, a...

Technology: Hot Rolled, Cold Draw, Forge

Available Size: Diameter: 8mm - 650mm, Length: 1m - 12m or customized

Processing Service: Cutting, Whittling, Grinding, Drilling, Boring, Stretching,etc

E-mail: [email protected]

Whatsapp: +86-15690878691

20# Round Bar Description

20# Round Bar belongs to low-carbon carbon steel, which is cold extruded, carburized and quenched steel. 20# Round Steel Bar belongs to the GB/T 699-2015 standard. 20# Round Bar has low strength, contains elements such as carbon, silicon, and manganese, and 20# Round Steel has good toughness, plasticity, weldability, and cutting performance. The tensile strength is 253-500MPa, and the elongation is ≥ 24%.

20# Round Bar is suitable for manufacturing small and medium-sized carburizing, carbonitriding and other parts that are not important in automobiles, tractors and general machinery manufacturing, such as handbrake shoes, lever shafts, gearbox speed forks, and transmission passives on cars. Gears and tractor camshafts, suspension equalizer shafts, equalizer inner and outer bushings, etc.; 20# Round Bar used in hot-rolled or normalized conditions to manufacture various mechanical parts that require low stress but require high toughness; in heavy and medium-sized machinery In manufacturing, such as forged or pressed tie rods, shackles, levers, sleeves, clamps, etc.

The performance of 20# Round Bar can be further improved through different heat treatment methods. For example, normalizing treatment can improve the strength and hardness of steel, while also improving its toughness and cutting performance; Quenching treatment can achieve higher strength and hardness, but it will reduce its toughness and plasticity; Tempering treatment can eliminate the internal stress generated by quenching, while improving the toughness and plasticity of the steel.

20# Round Bar Datasheet

Prdouct Name 20# C20 Carbon Steel Round Bar
Shape Round, Square, Flat, Rectangle, etc.
Surface Mild steel plain finish, hot dip galvanized, color coated, ect.
Size Tolerance ±1%
Processing method Bending, Welding, Decoiling, Cutting, Punching, Polishing or as customer's request
Size OD from 10 - 400mm, length from 1m-12m or according to customer's special request
Technology Hot roll, cold roll, cold drawn, ect.
Trade Term FOB,CIF,CFR,EXW,etc.
Lead time Small batch can be in 7 days, depending on the quantity
Certificate ISO9001

20# Round Bar Chemical composition

Element C Si Mn P S
20# 0.17%-0.23% 0.10%-0.40% 0.30%-0.60% ≤0.045% ≤0.045%

20# Round Bar Mechanical Properties

Grade Tensile strength σb (MPa) Yield strength σs (MPa) Elongation δ5 (%) Reduction of area ψ (%) Hardness
20# ≥410(42) ≥245(25) ≥25 ≥55 ≤ 156 HB

Equivalent Grade of 20# Round Bar

China BS 970:1955 British Standards European Werksoff SAE/AISI
20# EN3A EN32 080A15 C15
C20
ST52-3(ST5)
S235(S23)
S275(S27 & S28)
1.0402 1.0401 1.1151

Leave a Message

BBN Steel materials supplier