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Steel is an alloy consisting mostly iron. Depending on the grade it contains
between 0.2% and 2.1% of carbon that is the most cost-effective alloying
material.
Apart of carbon, there are various other alloying elements used (manganese,
chromium, vanadium, and tungsten). Carbon and other elements act as a
hardening agent. Varying the amount of alloying elements in the steel
controls the hardness, ductility, and tensile strength of the
resulting steel. Steel with higher content of carbon is less ductile but
can be made harder and stronger than iron. These alloys are known as
cast iron for their lower melting point and castability.
Two distinguishing factors for steel with small amount of carbon are steel's
increased rust-resistance and better weldability.
Steel is one of the most common materials and is a major component in
buildings, infrastructure, tools, ships, automobiles, machines, and
appliances.
Name
Model
Q195 Q215A-B Q235A-D
Standard
GB912-89 GB3274-88.Q/WG(RZ)07-99
Corresp foreign standard
DIN1614 DINEN10025 JISG3101 ISO630
Name
Model
15 20 08 08Al
Standard
GB710
Name
Model
A B
Standard
CCS.GL.LR.BV.DNV.ABS GB712-2000
Corresp foreign standard
CCS.GL.LR.BV.DNV.ABS
Name
Model
ZQ195、ZQ215、ZQ235、
ZQ215Al、ZQ236Al、
Name
Model
QG42
Standard
Q/WG(RZ)02-99
Name
Model
08Zh
Standard
Q/WG(RZ)02-99
Name
Model
S205、S240(A、B）S290、S315、S360、S385(X42、X46、X52、X56) S415、S450(X60、X65)、L210、L245、L290、L320、L360、L390、L415
Standard
GB/T14164-93 GB/T9711.1-1997
Corresp foreign standard
DIN1614 DINEN10025 JISG3101 ISO630
Name
Model
J5
Name
Steel for container
Model
SPA-H SM490A SS400、SS490
Standard
JISG3125 JISG3106 JISG3101
Name
Steel for mine
Model
YZ350K NM150K
Standard
Q/WG(RZ)19-93 Q/WG(RZ)20-99
Name
With the general structure of rolled steel
Model
SS330、SS400
Standard
JISG3101
Name
Model
SPHC、SPHD
Standard
JISG3131