Introduction to DIN 17175 alloy steel pipe specifications

An Introduction to DIN 17175 Alloy Steel Pipe Specifications

DIN 17175 alloy steel pipes are designed to withstand high temperatures up to 600°C and are commonly used in applications that require pressure resistance. These pipes are widely employed in the construction of boilers, pipelines, pressure vessels, and other critical equipment across various industries. **Chemical Composition:** Below is a detailed breakdown of the chemical composition for different grades of DIN 17175 steel pipes:

Grade

 Chemical Composition (%)
C Si Mn P S Ni Cr Mo Others
St35.8 ≤0.17 0.10~0.35 0.40~0.80 ≤0.040 ≤0.040 - - - -
St45.8 ≤0.21 0.10~0.35 0.40~1.20 ≤0.040 ≤0.040 - - - -
17Mn4 0.14~0.20 0.20~0.40 0.90~1.20 ≤0.040 ≤0.040 - ≤0.30 - -
19Mn5 0.17~0.22 0.30~0.60 1.00~1.30 ≤0.040 ≤0.040 - ≤0.30 - -
15Mo3 0.12~0.20 0.10~0.35 0.40~0.80 ≤0.035 ≤0.035 - - 0.25~0.35 -
13CrMo910 0.10~0.18 0.10~0.35 0.40~0.70 ≤0.035 ≤0.035 - 0.70~1.10 0.45~0.65 -
10CrMo910 0.08~0.15 ≤0.50 0.40~0.70 ≤0.035 ≤0.035 - 2.00~2.50 0.90~1.20 -
14MoV63 0.10~0.18 0.10~0.35 0.40~0.70 ≤0.035 ≤0.035 - 0.30~0.60 0.50~0.70 V: 0.22~0.32
X20CrMoV121 0.17~0.23 ≤0.50 0.40~0.70 ≤0.030 ≤0.030 0.30~0.80 10.00~12.50 0.80~1.20 V: 0.25~0.35
**Mechanical Properties:** The mechanical properties of these pipes vary depending on their grade and wall thickness. Here’s a summary of the minimum yield point and tensile strength for each grade:

Grade

Material

Number

 MPa or N/mm²
Minimum Yield Point

Tensile Strength
Wall Thickness ≤16 mm Wall Thickness 16–40 mm
St35.8 1.0305 235 225 360~480
St45.8 1.0405 - 245 410~530
17Mn4 1.0481 - 275 460~580
19Mn5 1.0482 - 315 510~610
15Mo3 1.5415 275 275 450~600
13CrMo910 1.7335 295 295 440~590
10CrMo910 1.7380 285 285 450~600
14MoV63 1.7715 325 325 460~610
X20CrMoV121 1.4922 490 490 690~850
These specifications ensure that DIN 17175 alloy steel pipes are reliable and durable under demanding conditions, making them ideal for industrial applications where safety and performance are paramount.

Fuel Dispenser Equipment Accessories

Fuel Dispenser Electronic Accessories – Classification Overview
 
Electronic accessories play a vital role in enhancing the functionality, accuracy, and connectivity of modern fuel dispensers. These components support metering, control, communication, and safety functions, ensuring smooth operation across a wide range of fueling environments. Fuel dispenser electronic accessories can be classified according to their core function, interface type, compatibility, and application purpose.
 
1. By Core Function:
• Control Boards (Mainboards):
Act as the central processing unit of the dispenser, managing data flow, transaction control, and system logic.
• Display Modules:
Include LED or LCD screens for showing volume, price, and unit rate. Available in single or dual-display formats.
• Keypads & Input Panels:
Used for user input, preset fueling amounts, and system configuration.
• IC Card Readers & Payment Terminals:
Enable secure, contactless, or card-based transactions in modern fuel stations.
• Communication Modules (RS-485, Ethernet, Wi-Fi, 4G):
Facilitate data exchange with POS systems, station controllers, or remote monitoring platforms.
 
2. By Interface Type:
• Analog Signal Modules:
Traditional signal-based control for basic operations and legacy systems.
• Digital & Smart Interfaces:
Use protocols like RS-232, RS-485, or TCP/IP for reliable communication and remote diagnostics.
 
3. By Compatibility:
• Universal Components:
Standard accessories that fit most international fuel dispenser brands and models.
• Brand-Specific Modules:
Custom-designed components tailored for specific dispenser models (e.g., T7, T9, T10 series).
 
4. By Application Purpose:
• Retail Fueling Systems:
Focus on customer interface, transaction accuracy, and payment integration.
• Fleet & Commercial Systems:
Prioritize data logging, fuel control, and compatibility with centralized fuel management platforms.
• Self-Service Dispensers:
Feature user-friendly input devices, secure card modules, and standalone transaction boards.
 
These electronic accessories are developed to meet industry standards in EMC protection, environmental durability, and data security, ensuring long-term reliability and easy maintenance in demanding field conditions.

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