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Help CenterCOLD DRAWN SEAMLESS TUBE STEEL in Small Calibers for High(low and Medium) Pressure Boilers and Petro Chemical Industry
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COLD DRAWN SEAMLESS TUBE STEEL in small calibers for high(low and medium) Pressure boilers and petro chemical industry
Main Steel material:10, 20, 20G, 20MnG, 25MnG, ST45.8/Ⅲ, 15Mo3 etc.
Standard GB3087 ,GB5310,ASME SA210 ,DIN17175
Diamensional tolerances:
Types of steel tubes |
Outer diameters |
Wall thickness |
||
Cold-rolled tubes |
Tube sizes(mm) |
Tolerances(mm) |
Tube sizes (mm) |
Tolerances(mm) |
>30~50 |
±0.3 |
>3~20 |
±10% |
|
Application
Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa and operating temperature below 450 oC), as the pipes on the heated sides of high·pressure boilers, economizers, overheaters, reheaters and pipes for petrochemical industry(with the operating pressure above 9.8Mpa and operating temperature ranging between 450-650C1
Mechanical properties:
Standard codes |
steel |
Tensite strength(MPa) |
Yield strength(MPa) |
Elongation(%) |
Hardness |
GB3087 |
10 |
335~475 |
≥195 |
≥24 |
/ |
20 |
410~550 |
≥245 |
≥20 |
/ |
|
GB5310 |
20G |
410~550 |
≥245 |
≥24 |
/ |
20MnG |
≥415 |
≥240 |
≥22 |
/ |
|
25MnG |
≥485 |
≥275 |
≥20 |
/ |
|
ASME SA210 |
SA210A-1 |
≥415 |
≥255 |
≥30 |
≤143HB |
SA210C |
≥485 |
≥275 |
≥30 |
≤179HB |
|
DIN17175 |
ST45.8/Ⅲ |
410~530 |
≥255 |
≥21 |
/ |
15Mo3 |
450~600 |
≥270 |
≥22 |
/ |
Chemical composition:
Standard codes |
steel |
Chemical compositions (%) |
||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
||
GB3087 |
10 |
0.07~0.13 |
0.17~0.37
|
0.38~0.65 |
≤0.030
|
≤0.030
|
|
|
20 |
/ |
|||||||
GB5310 |
20G |
0.17~0.24 |
0.35~0.65 |
|
||||
20MnG |
0.17~0.24 |
0.70~1.00 |
|
|||||
25MnG |
0.18~0.24 |
0.80~1.10 |
|
|||||
15CrMo |
0.12~0.18 |
0.40~0.70 |
0.80~1.10 |
0.40~0.55 |
||||
ASME SA210 |
SA210A-1 |
0.13~0.19 |
≥0.1 |
0.45~0.65 |
≤0.030 |
≤0.030 |
||
SA210C |
0.18~0.24 |
0.80~1.10 |
||||||
DIN 17175 |
ST45.8/Ⅲ |
≤0.21 |
0.10~0.35 |
0.40~1.20 |
≤0.040 |
≤0.040 |
||
15Mo3 |
0.12~0.20 |
0.40~0.80 |
≤0.035 |
≤0.035 |
0.25~0.35 |
|||
Manufacturer |
Hebei Province Gold Mysterious Pipe Co.,Ltd |
|
Process |
Seamless, Cold drawn |
|
|
size |
Outer Diameter |
25.8,31.8,38,50.8mmetv |
Wall Thickness |
1.6-3.5mm |
|
Length |
max 12m |
|
Contact |
Elina Wong 86-0312-6721288 skype.....>jinaoguanye3 |
|
Wrapped with polywoven bags, we use steel belt to pack the outside, polywooden cases or wooden boxes for thin wall thickness can be offered if required
Send Inquiry to This Supplier
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