DIN17175 St35.8 St45.8 Carbon Steel Boiler Pipe / Alloy Steel Tube

Name: DIN17175 St35.8 St45.8 Carbon Steel Boiler Pipe / Alloy Steel Tube
Brand: Cangzhou Baoyang Pipeline Equipment Co., Ltd.

Price Negotiable

Price: Negotiable

MOQ: 1

Delivery Time: 7~30 working days

Brand: BaoYang

Product Description

DIN 17175 St35.8 and St45.8 Carbon Steel Seamless Boiler Tubes: Robust Solutions for High-Pressure Applications

1. Product Description: DIN 17175 St35.8 and St45.8 Carbon Steel Seamless Boiler Tubes are high-quality, seamless tubes designed for use in boiler systems and other high-pressure applications. These tubes are manufactured from carbon steel and are characterized by their seamless construction, which ensures uniform wall thickness and superior mechanical properties. The "St" in the grade name stands for Stahl, the German word for steel, with the numbers indicating the minimum yield strength of the material in N/mm².

2. Product Parameters:

Parameter	Description
Grades	DIN 17175 St35.8 and St45.8
Material	Carbon Steel (Seamless)
Standard	DIN 17175
Size Range	Various diameters and wall thicknesses as per DIN 17175
Length	Standard lengths, customizable upon request
Ends	Plain ends, beveled ends, threaded, or socket-weld ends
Surface Treatment	As-rolled, annealed, or normalized

3. Mechanical Properties:

Property	St35.8 Requirement	St45.8 Requirement
Tensile Strength	≥410 MPa	≥490 MPa
Yield Strength	≥335 MPa (St35.8)	≥435 MPa (St45.8)
Elongation	≥18%	≥18%
Hardness	Varies depending on heat treatment

4. Chemical Composition:

Element	Typical Range (%) for St35.8 and St45.8
Carbon	0.10 - 0.20 (St35.8), 0.12 - 0.20 (St45.8)
Manganese	Up to 1.00 (both grades)
Phosphorus	≤ 0.025 (both grades)
Sulfur	≤ 0.025 (both grades)
Silicon	Up to 0.50 (both grades)

5. Product Uses:

Boiler Tubes: Used in high-pressure boilers for steam generation.
Superheater Tubes: Employed in the superheater sections of steam power plants.
Heat Exchangers: Suitable for use in heat exchangers operating under high pressure and temperature.
Petrochemical Industry: Utilized in pipelines and equipment within the petrochemical industry.

6. Product Grade Standards:

DIN 17175: The tubes are manufactured in compliance with the German Industrial Standard (DIN) 17175, which specifies the technical requirements for seamless steel tubes for high-temperature and high-pressure service.

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