What is CR240LA+Z steel equivalent to?
|
Standard system |
Equivalent grades |
Tensile strength(MPa) |
Yield strength(MPa) |
Main application areas |
|
China GB |
CR240LA+Z |
340-420 |
240-320 |
Automobile structural parts, home appliance housings |
|
Europe EN |
HX300LAD+Z |
340-420 |
300-380 |
Automobile chassis, building components |
|
Japan JIS |
SAPH440+Z |
440-590 |
285-415 |
Automobile anti-collision beam, home appliance frame |
|
US ASTM |
HSLAS340+Z |
340-420 |
340-420 |
Car seat frame, shelf |
|
International ISO |
CR240LA+Z |
340-420 |
240-320 |
General industrial use |
What is the material of CR240LA+Z galvanized steel coil?
CR240LA+Z is a cold-rolled low-alloy high-strength steel hot-dip galvanized material with high strength, good formability and corrosion resistance
CR: Cold Rolled
240: Minimum yield strength (MPa)
LA: Low Alloy, containing trace alloying elements (such as Mn, P) to improve strength
+Z: Hot-dip galvanizing (Zinc Coating)
chemical composition
|
Element |
C |
Mn |
P |
S |
Al |
|
Content |
≤0.10% |
≤1.20% |
≤0.025% |
≤0.025% |
≥0.015% |
What are the differences between CR240LA+Z and DX51D+Z?
CR240LA+Z is a cold-rolled low-alloy high-strength steel with high strength + galvanized composite properties; DX51D+Z is an ordinary cold-rolled low-carbon steel
Mechanical properties comparison
|
Parameters |
CR240LA+Z |
DX51D+Z |
|
Yield strength (MPa) |
240-320 |
140-220 |
|
Tensile strength (MPa) |
340-420 |
270-350 |
|
Elongation (A80) |
≥24% |
≥30% |
|
Plastic strain ratio (r value) |
≥1.4 |
≥1.8 |
CR240LA+Z is preferred:
Weight reduction design is required (such as new energy vehicle components)
Components subject to dynamic loads (such as suspension parts)
CR240LA+Z steel coil is used for?
CR240LA+Z galvanized steel coil has a yield strength of 240-320MPa, which is 10%-15% lighter than ordinary galvanized steel. It is suitable for lightweight design and has good formability and an elongation of ≥24%, making it suitable for stamping, bending and other processing.
So it applies to:
Automobile: anti-collision beams, battery housings and other structural parts;
Home appliances: washing machine drums, air conditioner brackets and other corrosion-resistant parts;
Construction: light steel structures, cable trays and other load-bearing scenes.
It is suitable for mid-to-high-end industrial fields that require a balance between strength, corrosion resistance and cost.