SS400

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JFS Steel's SS400 and Steel Machining Service

Ju Feng Special Steel Co., Ltd. is an industrial steel materials, steel parts and steel-related services supplier from Taiwan. Along with steel bars, steel plates and steel tubes supply, steel cutting, drilling, machining and heat treatment services are also provided.

JFS Steel has been offering customers SS400 Low Carbon Steel and precision steel machining services since 2006. With both highly skilled technology and 47 years experience, JFS Steel always makes sure to meet each customer's demand.


SS400

Low Carbon Steel

SS400 according to material grade and name defined in the JIS G 3101 standard, The first S stands for "Steel", the second S stands for "Structure", and 400 for the lower limit tensile strength of 400 MPa. Ordinary structural steel with a tensile strength of 400 Mpa.This steel is the most widely used in JIS standard. Its use covers structures such as bridges, ships, vehicles, etc., in the shape of steel plates, steel bars and sections, almost all auxiliary materials for machinery and structures are used.

SS400 is also soft in hardness due to its low carbon content. It is not recommended for use on main components with high strength, wear resistance or hardness. However, it has excellent weldability and machinability. It is often used for welding structural parts, nuts, small parts, parts for auto & motor industry, etc.

A general structure hot rolled steel

Purpose

SS400 is widely used in general structural steel.

International Comparison of Meterials

EU
EN
Inter
ISO
USA
AISI
Japan
JIS
Germany
DIN
China
GB
France
AFNOR
England
BS
Canada
HG
European
EN
S275JRE275BA283D
A529
Gr.D
SS400RSt42-2
St44-2
Q235E28-2161-430
161-43A
161-43B
260W
260WT
Fe430B

Italy
UNI
Spain
UNE
Sweden
SS
Poland
PN
Finland
SFS
Austria
ONORM
Russia
GOST
Norway
NS
Portugal
NP
India
IS
Fe430BAE255B1411
1412
St4VFe44BSt42F St430BSt4ps
St4sp
NS12142FE430-BIS2062

**This comparison table is for reference only. The standards and grades of various countries have slightly different chemical compositions. Please refer to the database for details.**

Chemical Composition(JIS G4051)

磷(P)%硫(S)%厚度(mm)降伏強度(Mpa)抗拉強度(Mpa)%伸長率(%)
00.0500.05≦16≧245400-510≧21

Mechanical properties

Tensile strength (kgf/mm²): 41~52
Yield strength (kgf/mm²): ≧24

Size Range

ShapeSize(mm)
Round Bar1315161718192021222325
2627283032343638404244
46485055606570