建造
时间:2019-07-10 资料来源:思科 点击:

  The main Grades: Q345GJB/C/D/E-Z15/Z25/Z35,Q390GJC/Q390GJD/E-Z15/Z25/Z35, Q420GJC/D/E-Z15/Z25/Z35, Q460GJB/C/D/E-Z15/Z35, A572Gr42/50/65, Thickness: 6-200mm, The high rise building steel has the characteristics of high strength, high toughness, easy welding(low yield strength ratio) and high lamellar tearing resistance, etc.

  Widely used in large construction projects, such as high-rise building, super high-rise building, large-span stadiums, airports, conference and exhibition centers, and steel structure factory buildings etc.

典型的钢等级/规格

成绩

规格

尺寸范围

交货条件

Q345GJB / C / D / E-Z15 / Z25 / Z35

GB / T 19879
技术协议

6-200

AR / NR / N / N + T / TMCP

Q390GJC / D / E-Z15 / Z25 / Z35

Q420GJC / D / E-Z15 / 25/35

AR / NR / N / N + T / Q + T / TMCP

 Properties Of Typical Grades

 Chemical Composition

成绩

化学成分(wt%)

C

SI.

m

P.

S.

V.

NB.

TI.

ALS.

CR.

Q345GJ.

B.

≤0.20

≤0.55

≤1.60.

≤0.015.

≤0.005

0.02-0.15.

0.015-0.06.

0.010-0.030.

≥0.015

≤0.30.

≤0.30.

≤0.30.

C

D.

≤0.18

≤0.55

≤1.60.

≤0.015.

≤0.005

0.02-0.15.

0.015-0.06.

0.010-0.030.

≥0.015

≤0.30.

≤0.30.

≤0.30.

E.

Q390GJ.

C

≤0.20

≤0.55

≤1.60.

≤0.015.

≤0.005

0.02-0.20

0.015-0.06.

0.010-0.030.

≥0.015

≤0.30.

≤0.30.

≤0.70.

D.

≤0.18

≤0.55

≤1.60.

≤0.015.

≤0.005

0.02-0.20

0.015-0.06.

0.010-0.030.

≥0.015

≤0.30.

≤0.30.

≤0.70.

E.

Q420GJ.

C

≤0.20

≤0.55

≤1.60.

≤0.015.

≤0.005

0.02-0.20

0.015-0.06.

0.010-0.030.

≥0.015

≤0.40.

≤0.30.

≤0.70.

D.

≤0.18

E.

Q460GJ.

C

≤0.20

≤0.55

≤1.60.

≤0.016.

≤0.005

0.02-0.21.

0.015-0.06.

0.010-0.030.

≥0.015

≤0.70.

≤0.30.

≤0.70.

D.

≤0.18

0.015-0.060

≥0.20

E.

贯穿厚度特性


通过厚度的性能水平

S含量(wt%)

区域减少Z(%)

平均值三个样本

单样本的价值

Z15

≤0.005

≥15

≥10

Z25

≤0.005

≥25

≥15

Z35

≤0.005

≥35

≥25

 CE and Pcm Values Are As Follows:


钢/等级

交货条件

CE(%)

PCM(%)

≤50mm

> 50-220毫米

≤50mm

> 50-220毫米

Q345GJ.

AR / n / nr / n + t

≤0.41

≤0.43

≤0.28

≤0.28

TMCP.

≤0.38

≤0.40.

≤0.24

≤0.26

Q390GJ.

AR / n / nr / n + t

≤0.44

≤0.46

≤0.28

≤0.29

TMCP.

≤0.40.

≤0.43

≤0.26

≤0.27

Q420GJ.

AR / n / nr / n + t

≤0.47

≤0.49

≤0.30.

≤0.32

TMCP.

≤0.40.

技术协议

≤0.26

技术协议

Q460GJ.

AR / n / nr / n + t
Q + T / TMCP

≤0.43

技术协议

  ※ CE(%)=C+Mn/6+ (Cr+Mo+V)/5+ (Ni+Cu)/15

  ※ Pcm(%)=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B

机械性能


钢/等级

质量水平

Kv2(j)

RM(MPA)

一种 (%)

reh(mpa)

180°Centring

屈服比

板厚度(mm)

板厚

临时

不小于

6-16

> 16-35

> 35-50.

> 50-200

> 150-200

≤16.

> 16.

Q345GJ.

B.

20.

34.

490-610

≥22

≥345

345-465.

335-455.

325-445.

技术
协议

d = 2a,好的

d = 3a,好的

≤0.83.

C

0.

D.

-20

E.

-40

Q390GJ.

C

0.

34.

490-650.

≥20

≥390

390-510

380-500.

370-490.

d = 2a,好的

d = 3a,好的

≤0.85.

D.

-20

E.

-40

Q420GJ.

C

0.

34.

520-680

≥19

≥420

420-550

410-540

400-530

d = 2a,好的

d = 3a,好的

≤0.85.

D.

-20

E.

-40

Q460GJ.

C

0.

34.

550-720.

≥17

≥460.

460-600.

450-590.

440-580

d = 2a,好的

d = 3a,好的

≤0.85.


现在下单!