Recently, Botop Steel successfully delivered the ASTM A106 Grade B seamless steel pipes that underwent rigorous inspection by a third-party inspection agency (TPI).
It is worth noting that this customer has placed multiple orders for this product throughout the year, which fully reflects their strong recognition and trust in the quality and service provided by Botop Steel.
Project Information:
Order No.: BT20250709A
Material: ASTM A106 Grade B Seamless Steel Pipes
Sizes: 12", 18", 20", 24"
Total Weight: 189 tons
TPI Inspection Items: Appearance, dimensions, chemical composition, mechanical properties, and non-destructive testing.






Chemical Composition Inspection Record
ASTM A106 Grade B | Chemical Composition, % | |||||||||
C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V | |
Standard Requirements | 0.30 max | 0.29-1.06 | 0.035 max | 0.035 max | 0.10 min | 0.40 max | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
Actual Results | 0.22 | 0.56 | 0.005 | 0.015 | 0.24 | 0.19 | 0.007 | 0.0018 | 0.015 | 0.0028 |
Mechanical Properties Inspection Record
ASTM A106 Grade B | Mechanical Properties | |||
Tensile Strength | Yield Strength | Elongation (longitudinal) |
Bending Test | |
Standard Requirements | 415 MPa min | 240 MPa min | 30 % min | No cracks |
Actual Results | 470 MPa | 296 MPa | 37.5% | No cracks |
As a leading seamless steel pipe supplier in China, Botop Steel is dedicated to providing high-quality steel pipe solutions to customers worldwide. Whether for standard products or customized requirements, we are committed to delivering a tailored and satisfying service experience.
Welcome to contact us to learn more about ASTM A106 Grade B seamless steel pipes and cooperation opportunities.
Post time: Aug-08-2025