大阳成网站娱乐-澳门太阳集团2007登录

 
Welcome to Jiangsu ChengDe Steel Tube Share Co.,Ltd.!  
中文 English
 
Product Categories
Seamless steel tubes for ships
Seamless steel tube for transmission of
Seamless steeI tubes for structures
Seamless steel tubes for petroleum
Seamless steel tubes for high-pressure
Pipe-Line Seamless Steel Pipe
Seamless steel tubes for oil casing and tubing
Seamless steel tubes in small calibers for high(low and medium) pressure boilers and petrochemical i
 
 
Home - Products -高压化肥设备用无缝钢管

高压化肥设备用无缝钢管

高压化肥设备用无缝钢管

标准:
GB6479——中国国家标准

用途:
用于高压化肥设备和管道用无缝钢管。
主要生产钢管牌号:
10、20、16Mn、10MoWVNb、15CrMo、1Cr5Mo、12 Cr2Mo等

尺寸公差:

 

钢管种类

外径(D)

钢管壁厚(S)

冷拔管

钢管外径(mm)

允许偏差(mm)

钢管壁厚(mm)

允许偏差(mm)

>30~50

±0.3

≤30

±10%

>50~219

±0.8%

热轧管

>219

±1.0%

>20

±10%

力学性能:

标准

牌号

抗拉强度(MPa)

屈服强度(MPa)

伸长率(%)

冲击功(J)

低温冲击Akv

GB6479

10

335~490

≥205

≥24

/

-20℃≥18

20

410~550

≥245

≥24

≥39

-20℃≥18

16Mn

490~670

≥320

≥21

≥47

-40℃≥21

10MoWVNb

470~670

≥295

≥19

≥62

 

15CrMo

440~640

≥235

≥21

≥47

 

1Cr5Mo

390~590

≥195

≥22

≥94

 

12 Cr2Mo

450~600

≥280

≥20

≥38

 

化学成分:

标准

牌号

化学成分(%)

C

Si

Mn

P

S

Cr

Mo

Ni

GB

6479

10

0.07~0.14

0.17~0.37

0.35~0.65

≤0.030

≤0.030

/

/

/

20

0.17~0.24

0.17~0.37

0.35~0.65

≤0.030

≤0.030

/

/

/

16Mn

0.12~0.20

0.20~0.60

1.20~1.60

≤0.030

≤0.030

 
 
 

10MoWVNb

0.07~0.13

0.50~0.80

0.50~0.80

≤0.030

≤0.030

/

0.60~0.90

/

15CrMo

0.12~0.18

0.17~0.37

0.40~0.70

≤0.030

≤0.030

0.80~1.10

0.40~0.55

/

1Cr5Mo

≤0.15

≤0.50

≤0.60

≤0.030

≤0.030

4.00~6.00

0.45~0.60

≤0.60

12 Cr2Mo

0.80~0.15

≤0.50

0.40~0.70

≤0.030

≤0.030

2.0~2.50

0.90~1.20

 

注:其中10的残余元素含量Ni≤0.25%、Cr≤0.15%、Cu≤0.20%
20的残余元素含量Ni≤0.25%、Cr≤0.25%、Cu≤0.20%、Mo≤0.15%、V≤0.08%
其他的残余元素含量Ni≤0.30%、Cr≤0.30%、Cu≤0.20%

 
/
pskvic@cdgroup.cn
NO.1,Sanjiang Avenue,Yanjiang Economic Development Zone,Jiangdu District,Yangzhou City,Jiangsu Province,China
86+514+86529012
Copy right: Jiangsu ChengDe Steel Tube Share Co.,Ltd.
XML 地图 | Sitemap 地图