GB/T 4171 Q550NH Weathering Resistant Plate

GB/T 4171 Q550NH Weathering Resistant Plate

GB/T 4171 Q550NH has the characteristics of toughness, plastic extension, molding, welding and cutting, abrasion, high temperature and anti-fatigue, and it also has the feature of rust-proof, anti-corrosion life extension, thinning and energ

GB/T 4171 Q550NH has the characteristics of toughness, plastic extension, molding, welding and cutting, abrasion, high temperature and anti-fatigue, and it also has the feature of rust-proof, anti-corrosion life extension, thinning and energy saving. Q550NH Weathering steel is mainly used for railways, vehicles, bridges, towers and other steel structures that long-term exposure to the atmosphere.

Chemical Composition of Q550NH Weathering Resistant Plate

Grade

C

Si

Mn

P

S

Cu

Cr

Ni

Other element

Q460NH

≤0.16


0.65


2.0

≤0.025

≤0.030

0.20-0.55

0.30-1.25

0.12-0.65

a,b,c

GB/T 4171 Q550NH Mechanical Property

Grade

Tensile Test

180 degree bending test
Bending center diameter

Yield strength
Not less than
Rm/(N/mm²)

Tensile strength
Rm/(N/mm²)

Elongation A/%
Not less than

≤16

>16
-40


40-
60

>60

≤16

>16
-40


40-
60

>60

≤6

>6-16

>16

Q550NH

550

540

530

-

620-780

16

16

15

-

a

2a

3a

Q550NH Weathering Resistant Plate production lines:

2500 production line in the conventional production specifications, the annual output of 1.6 million tons

Product thickness mm

Product width mm

Product length mm

Total length of steel plate

Weight of steel plate (tons)

6-≤7

1800-2200

5200-13000

28000

2.2-3.0

>7-30

1600-2300

5200-13000

≤32000

2.2-4.55


3500 production line in the conventional production specifications, the annual output of 2 million tons

Product thickness mm

Product width mm

Product length mm

Total length of steel plate

Weight of steel plate (tons)

10-50

2000-4100

5500-15000

≤36000

5.16-7.47/8.34-12.12

≥50-80

2250-3050

5500-15000

≤36000

8.34-12.12


4300 production line in the conventional production specifications, the annual output of 1.8 million tons

Product thickness mm

Product width mm

Product length mm

Total length of steel plate

Weight of steel plate (tons)

6-120

≥1500-4100

5500-15000

≤43000

22 max

120-300

≥1500-4100

5500-15000

≤20000

44 max


1700 hot-rolled coil, the annual output 3.5 million tons

Product thickness mm

Product width mm

Volume of steel plate (tons)

1.8-19

≥900-1550

27.8 max

Q550NH Weathering Resistant Plate Size Range (MM):

The size range of Q550NH Weathering Resistant Plate is 4.5-150×1600-4100×L

GB/T 4171 Q550NH Delivery Condition:

Delivery condition of GB/T 4171 Q550NH: AR、CR、NR、TMCP、N、T、N+T、Q+T.

Shanghai Katalor Enterprises Co., Ltd is a big complex combined steel stockist whose business related with trade, processing, storage and transportation. We are specialized in supplying GB/T 4171 Q550NH Weathering Resistant Plate. Our products are with good quality and they are available for customers' requirement. We have advanced equipment and our products can meet the state standard also. If you have any need of Q550NH Weathering Resistant Plate, please do not hesitate to contact us by email [email protected], we can do our best to help you!

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