coated steel coil manufacturer

Docol 420LA High Strength Low Alloy Steel (HSLA)

Product description:

Docol 420LA steel is a high-strength low-alloy steel, which can be supplied as hot-rolled steel and cold-rolled steel. It is supplied with S420MC based on EN 10149-2:2010 standard.

 

 

 

Product 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-

 

 
Quality inspection process



FAQ:

Q1:Can you send samples?

A:Of course, we can provide customers with free samples.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q5:Can you accept customize?

A: Yes. It can be customized as per the customers' request.

Q6:What are the certifications for your products?

A:We have ISO 9001, MTC, ISO14001,third parties’ inspections are all available such SGS, BV ect.

Q7:How long does your delivery time take?

A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.

Q8: How many countries you already exported to?

A:We have exported to Canada, Russia, Belarus, Poland, Brazil, Mexico, Colombia, Ecuador, Peru, Iran, Vietnam, Malaysia, UAE, Nigeria and other countries. Our export experience is rich, we are familiar with different market needs, can help customers avoid a lot of trouble.

Q9:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.

Q10:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.

Q11:How to pack the products?

A: Standard export sea-worthy packaging, 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 and various climate changes during ocean transportation.

 

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Shandong Yehui Coated Steel Plate Co., Ltd. is located in the coated steel plate distribution center - Shandong Dianzi Industrial Park. It has a unique geographical location, 300 kilometers to Tianjin Port, 300 kilometers to Qingdao Port, 150 kilometers away from Jinan Airport, and the northern part of the country.
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