产品简介 PRODUCT INTRODUCTION
中国标准 CHINESE STANDARDS
锅炉用无缝钢管
SEAMLESS STEEL AND PIPES FOR BOILER
标准 Standard:
GB5310…………中国国家标准China National Standards
用途Application:
用于高压锅炉(工作压力一般在9.8MPa以上,工作温度在450℃~650℃之间)的受热管子、集箱、省煤器、过热器、再热器等。
For manufacture heating—pipelines, containers ,coal—saving devices , superheaters and reheaters of high pressure boilers(P>9.8Mpa, 450℃<T<650℃)
主要生产钢管牌号 Main Steel Tube Grade:
20G、12Cr1MoVG
经协商,也可供应其他牌号的钢管
Other grade can also be provided after consulting with customers.
化学成分、机械性能Chemical composition & Mechanical Properties
标准
Standard |
牌号
Grade
|
化学成分Chemical Composition(%)
|
机械性能Mechanical Properties
|
C
|
Si
|
Mn
|
P 、S
|
Cr
|
Mo
|
V
|
抗拉强度(Mpa)
Tensile Strength
|
屈服强度(Mpa)
Yield Strength
|
伸长率(%)
Elongation
|
GB5310
|
20G
|
0.17
~0.24
|
0.17
~0.37
|
0.35
~0.65
|
≤0.030
|
_
|
_
|
_
|
410~550
|
≥245
|
≥24
|
12Cr1MoVG
|
0.08
~0.15
|
0.17
~0.37
|
0.40
~0.70
|
≤0.030
|
0.90
~1.20
|
0.25
~0.35
|
0.15
~0.30
|
470~640
|
≥255
|
≥21
|