Home > About Us> Tech & Service

高压用无缝碳钢锅炉管

高压用无缝碳钢锅炉管

标准:

用途:

主要钢级牌号:

化学成分:

标准

钢级

化学成分(%)

C

Mn

Si

V

Cr

Mo

P.S

GB5310

20G

0.17~0.24

0.35~0.65

0.17~0.37

/

/

/

≤ 0.030

25MnG

0.22~0.30

0.70~1.00

0.17~0.37

/

/

/

≤ 0.030

15MoG

0.12~0.20

0.40~0.80

0.17~0.37

/

/

0.25~0.35

≤ 0.030

15CrMoG

0.12~0.18

0.40~0.70

0.17~0.37

/

0.80~1.10

0.40~0.55

≤ 0.030

12Cr2MoG

0.08~0.15

0.40~0.70

≤ 0.50

/

2.00~2.50

0.90~1.20

≤ 0.030

12Cr1MoVG

0.08~0.15

0.40~0.70

0.17~0.37

0.15~0.30

0.90~1.20

0.25~0.35

≤ 0.030

标   准

牌  号

化   学   成   分

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

ASTM A192/ASME SA192

A192 / SA192

0.06~0.18

≤0.25

0.27~0.63

≤0.035

≤0.035

 

/

/

/

/

机械性能:

抗拉强度 (MPa)

屈服强度 (MPa)

伸长率(%)

20G

410~550

≥ 245

≥ 24

25MnG

≥ 415

≥ 240

≥ 22

15MoG

450~600

≥ 270

≥ 22

15CrMoG

440~640

≥ 235

≥ 21

12Cr2MoG

450~600

≥ 280

≥ 20

12Cr1MoVG

470~640

≥ 255

≥ 21

标   准

牌  号

抗拉强度(MPa)

屈服强度(MPa)

伸长率(%)

ASTM A192/ASME SA192

A192/SA192

≥325

≥180

≥35

尺寸公差:

钢管种类

钢管尺寸

mm

允许偏差

普通级

高级

热轧()

外径

D

159

+1.0%(最小值为+0.5mm)

+0.75%(最小值为+0.3mm)

>159

+1.0%

+0.90%

壁厚

S

<3.5

+15%(最小值为+0.48mm)

-10% (最小值为-0.32mm)

+1.0%(最小值为+0.2mm)

3.5~20

+15%

-10%

+10%

>20

D<219

+10%

+7.5%

D219

+12.5%

-10.0%

+10%

冷拔()

外径

D

30

+0.20mm

+0.15mm

>30~50

+0.30mm

+0.25mm

>50

+0.8%

+0.6%

壁厚

S

2~3

+12%

-10%

+10%

>3

+10%

+7.5%




About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.