Docol 420LA High Strength Low Alloy Steel (HSLA) DescriptionThe main alloying elements of HSLA steel include carbon, manganese, molybdenum, chromium and nickel. The nickel varies according to different HSLA steel grades. The proportion and ratio of these elements all play a crucial role in t
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High Strength Low Alloy Steel
Docol 420LA High Strength Low Alloy Steel (HSLA)
- Date.November 4, 2024
- Category.High Strength Low Alloy Steel
- Keyword.Big fire special steel, high strength steel plate, steel industry supply and demand, steel suppliers
Docol 420LA High Strength Low Alloy Steel (HSLA) Description
The main alloying elements of HSLA steel include carbon, manganese, molybdenum, chromium and nickel. The nickel varies according to different HSLA steel grades. The proportion and ratio of these elements all play a crucial role in the performance of HSLA steel. Docol 420LA HSLA improves strength while maintaining good toughness, giving it superior performance in withstanding impact and tensile stress. Besides, HSLA steel has lower alloying element content, which is beneficial to the implementation of welding processes. Through reasonable control of alloying element content, HSLA steel can have a certain corrosion resistance, suitable for engineering structures in corrosive environments. Lastly, Docol 420LA HSLA has good plasticity and malleability, which is conducive to the implementation of various forming processes and reduces manufacturing costs.
Mechanical Properties
|
Steel Grade |
Standard |
Plating |
Test Direction |
Yield Strength Rp0.2 (MPa) |
Tensile Strength Rm (MPa) |
Extension Rate A80( min%) |
Minimum Bend Inner Diameter for 90 ° Bend |
|
Docol CR 420LA |
VDA239- 100:2016 |
GI, GA*, ZA |
L |
420-520 |
480-600 |
17 |
1.0xt |
|
Docol HR 420LA |
VDA239- 100:2016 |
UC, Cam tho |
L |
420-520 |
480-600 |
18 |
UC 0.5xt bottle GI 1.0xt |
Chemical Composition
|
Steel Grade |
Plating |
C (max %) |
Si (max %) |
Mn (max %) |
P (max %) |
S (max %) |
Al ( min%) |
Ti (max%) |
Nb (max %) |
Cu (max %) |
|
Docol CR 420LA |
GI,GA,ZA |
0.12 |
0.50 |
1.65 |
0.30 |
0.025 |
0.015 |
0.015 |
0.10 |
0.20 |
|
Docol HR 420LA |
UC |
0.12 |
0.50 |
1.60 |
0.30 |
0.025 |
0.015 |
0.015 |
0.09 |
0.20 |
|
Docol HR 420LA |
GI |
0.12 |
0.50 |
1.60 |
0.30 |
0.025 |
0.015 |
0.015 |
0.10 |
0.20 |
Plating
|
Plating Type |
Plating Grade |
Standard |
Single-sided coating quality, single-point test (g/m2) |
Single side thickness, for reference only(μm) |
|
GI |
40/40 |
VDA239-100 |
40-60 |
5.6-8.5 |
|
GI |
50/50 |
VDA239-100 |
50-70 |
7.0-9.9 |
|
GI |
60/60 |
VDA239-100 |
60-90 |
8.5-12.7 |
|
GI |
70/70 |
VDA239-100 |
70-100 |
9.9-14.1 |
|
GI |
85/85 |
VDA239-100 |
85-115 |
12.0-16.2 |
|
GI |
115/115 |
VDA239-100 |
115-155 |
16.2-21.8 |
|
GA |
40/40 |
VDA239-100 |
40-60 |
5.6-8.5 |
|
GA |
50/50 |
VDA239-100 |
50-80 |
7.0-11.3 |
|
ZA |
95 |
As required |
7- |
|
|
ZA |
130 |
As required |
10- |
Mark Doe
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