High Strength Low Alloy Steel
High Strength Low Alloy Steel
Docol 550LA High Strength Low Alloy Steel (HSLA)
Docol 550LA is a high-strength low-alloy steel that provides properties for modern rapid production methods. It is supplied with S550MC based on EN 10149-2:2010 standard.
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Docol 550LA High Strength Low Alloy Steel (HSLA) Description
Docol 550LA HSLA has main alloying elements of carbon, manganese, molybdenum, chromium and nickel. Docol 550LA 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. Docol 550LA HSLA steel has a wide range of applications, among which bridge construction is one of the most important applications. Because the steel has high strength, good toughness and wear resistance, it can greatly reduce the structural weight in the construction of bridges and improve the wind resistance and service life of bridges.
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 HR 550LA |
VDA239- 100:2016 |
UC, Cam tho |
L |
550-670 |
610-750 |
12 |
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 HR 550LA |
UC |
0.12 |
0.60 |
1.80 |
0.025 |
0.025 |
0.015 |
0.15 |
0.09 |
0.20 |
|
Docol HR 550LA |
GI |
0.12 |
0.60 |
1.80 |
0.030 |
0.025 |
0.015 |
0.15 |
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 |
What is your working time?
In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
How to pack the products?
The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Can you send samples?
Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
What product information do I need to provide?
You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
What are the shipping ports?
Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
About product prices?
Prices vary from period to period due to cyclical changes in the price of raw materials.
What are the certifications for your products?
We have ISO 9001, SGS, EWC and other certifications.
How long does your delivery time take?
In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.
