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SINO ENGINEERING  GROUP(HK) CO., LIMITED
Beijing Add:18th  Floor ,Bright China Chang An Buliding  
158 Indoor Street,Jianguo Gate,Dongcheng  District ,Beijing China
Tel: +86 10-57196788Fax:  +86 10-57199088
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E-MAIL:sinoengineergroup@163.com
 
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Website: www.sinoengineergroup.com 

Current Postion: Home > Projects&Products > Steel Products
Steel Products

High Strength Plate

High Strength Plate
  • ProductsHigh Strength Plate

Detailed

1. Product introduction
NISCO has successively developed the high strength plates with yield strength of class 550, 690, 890, 960 and 1100 MPa since 2006, which are mainly used in coal mine machinery, engineering machinery, port machinery, and widely applied in mechanical equipment manufacture including the mining hydraulic support, crane, cement transportation pump, port suspension bridge, etc.

2. Grade and Size
2.1 Grade and Size

 

Grade

Standard

Delivery State

Product Size available

Thickness (mm

Width (mm

Length (m

Q550D
Q550E

Enterprise standard

TMCP

14~40

1000~2800

≤16

Q690D
Q690E

Enterprise standard

TMCP + tempering

14~30

1000~2800

≤16

Q550D-QT
Q550E-QT

Enterprise standard

Quenching + tempering

5~11

1000~2500

≤13

12~80

1000~2800

≤16

Q690D-QT
Q690E-QT

Enterprise standard

Quenching + tempering

5~11

1000~2500

≤13

12~80

1000~2800

≤16

Q890D
Q890E

Enterprise standard

Quenching + tempering

5~11

1000~2500

≤13

12~60

1000~2800

≤16

Q960D
Q960E

Enterprise standard

Quenching + tempering

5~11

1000~2500

≤13

12~60

1000~2800

≤16

Q1100D
Q1100E

Enterprise standard

Quenching + tempering

5~11

1000~2500

≤13

12~30

1000~2800

≤16

S550Q, S550QL, S690Q, S690QL, S890Q, S890QL, S960Q and S960QL have all pass the certification of CE. 

2.2 Chemical composition and mechanical properties
Chemical composition of high strength plate (wt %)

 

Grade

C

Mn

P

S

Si

Nb

Mo

Cr

Ni

B

Ceq

Q550D
Q550E

0.10

1.90

0.020

0.005

0.50

0.080

0.30

0.50

0.30

0.003

0.45

Q690D
Q690E

0.10

1.90

0.020

0.005

0.50

0.080

0.30

0.50

0.30

0.003

0.46

Q550D-QT
Q550E-QT

0.18

1.60

0.018

0.007

0.50

0.050

0.50

0.80

0.80

0.0030

0.58

Q690D-QT
Q690E-QT

0.18

1.60

0.018

0.005

0.50

0.050

0.50

0.80

0.80

0.0030

0.62

Q890D
Q890E

0.20

1.60

0.015

0.005

0.40

0.050

0.65

1.20

1.50

0.0030

0.65

Q960D
Q960E

0.20

1.60

0.015

0.005

0.40

0.050

0.65

1.20

1.50

0.0030

0.68

Q1100D
Q1100E

0.22

1.60

0.015

0.005

0.40

0.050

0.65

1.20

1.50

0.0030

0.68

Mechanical properties of high strength plate

 

Grade

Thickness
(mm)

Yield strength
(MPa)

Tensile strength
(MPa)

Elongation ratio
A50%

Elongation ratio
A%

Impact energy

Q550D
Q550E

14~40

≥550

670~830

≥21

/

≥47

Q690D
Q690E

16~30

≥690

780~910

≥21

/

≥47

Q550D-QT
Q550E-QT

5~80

≥550

670~830

/

≥16

≥47

Q690D-QT
Q690E-QT

5~40

≥690

780~900

/

≥15

≥47

40~80

760~880

Q890D
Q890E

5~60

≥890

940~1050

/

≥12

D: ≥40
E: ≥30

Q960D
Q960E

5~50

≥960

980~1100

/

≥11

D: ≥27
E: ≥27

Q1100D
Q1100E

5~30

≥1100

1250~1500

/

≥9

D: ≥27
E: ≥27

 Impact temperatureD -20℃;E -40℃; Q -20℃; QL -40

2.3 Grade Comparison at home and abroad

 

NISCO standard

European standard
EN 10025-6

American standard
ASTMA709

SSAB

JFE

Q550D
Q550E

S550Q

 /

/

JFE-HITEN690S

S550QL

Q690D
Q690E

S690Q

Grade 100

Weldox 700

JFE-HITEN780S

S690QL

Q890D
Q890E

S890Q

/

Weldox 900

 /

S890QL

Q960D
Q960E

S960Q

 /

Weldox 960

JFE-HITEN980S

S960QL

Q1100D
Q1100E

 /

 /

Weldox 1100

 /

 /

Comparison of high strength plates for different standards (for reference

3. References
3.1 Application reference

 

No.

Grade

Project /company name

1

Q690E

Korean 8000 tons floating crane

2

Q690E

Singapore 2000 tons floating crane

3

Q550D Q690D Q690D-QT

Hydraulic support for coal mine machinery

4

S690QL

Quenching and tempering plate for export

5

Q890D

Quenching and tempering high strength plate for coal mine machinery

6

Q890D Q960E

Quenching and tempering high strength plate for crane engineering machinery

7

Q890D Q960E

Quenching and tempering high strength plate for concrete engineering machinery

4. After-sales service
4.1 For key projects at home and abroad, the company shall dispatch professional engineers to site to track and provide technical support.
4.2 After the user puts forward quality complains in writing, the Company commits to give reply within 24 hours and arrive on site within 72 hours.