St45.8 St35.8 Seamless Carbon Steel Tubes Seamless carbon steel tubes in accordance with the requirements of standard DIN17175.
ST45.8 carbon steel pipe tensile strength: 410~530, yield point ≥235, normalising temperature: 870~900℃.
ST35.8 carbon steel pipe tensile strength of: 360 ~ 480, yield ≥ 215, normalising temperature: 900 ~ 930 ° C
ST45.8 ST35.8 seamless pipe belongs to carbon steel seamless pipe, commonly used in boiler pipe, superheater pipe and other high temperature equipment.

St45.8 St35.8 Carbon Steel Pipe Specification
|
Product name |
seamless steel tube |
|
Material |
St45.8 St35.8 |
|
Surface treatment |
bare pipe,oiled&PVC,galvanized,painted |
|
Application |
Used on high-pressure and high-temperature pipelines and equipment |
|
Shape |
round |
|
Thickness |
10-50mm |
|
Length |
1-24M or as request |
|
External diameter |
6-820mm |
|
Technology |
Seamless |
|
Standard |
API 5CT,ASTM A500,ASTM A501,API 5L,ASTM A106,ASTM A53 |
|
MOQ |
5 Tons |
|
Delivery Time |
7-30 days |
|
Payment method |
TT/LC |

About GNEE
GNEE Group is the largest manufacturer of high-temperature, high-pressure, square, rectangular, hollow and galvanised pipes in China, with an annual output of 15 million tonnes. The annual sales volume reaches 15 billion Yuan.GNEE Group has 5 boiler tube steel pipe production lines, 2 galvanised tube production lines and 3 square tube production lines.
Square steel pipe 10 * 10 * 0.5mm to 1000 * 1000 * 60MM and rectangular steel pipe 10 * 15 * 0.5mm to 800 * 1100 * 60MM are available in steel grades ranging from Q(s) 195 to Q(s) 345B / gr.a-gr. d. d.
Yuantai Delun can produce square according to ASTM A500/A501, JIS G3466, EN10219, EN10210, GB/T9711, GB/T3091, GB/T3094, GB/T6728, BC1, EPD, PHD, ISO9001, ISO14001, ISO45001, BV, din2240 and as1163. Welcome to contact GNEE Group for real-time factory inspection or factory visit!
GNEE Service

GNEE Certification

FAQ
Q. Whether to support OEM or ODM?
A: We welcome customers to cooperate with us by OEM or ODM. We have a professional technical team, can be customized according to drawings or requirements.
Q. What trade terms do you usually use?
A: We use FOB, CIF, C&R, DDU, DDP.
Q. What is your usual delivery time?
A: From the execution date of the PI, spot products will be delivered within 3 days, and customized products within 15 days. Special circumstances, please communicate again. All our products have strict quality inspection before they leave the factory, to ensure that you receive the goods with excellent quality.
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