Description: BBN steel is a well-known steel manufacturer and service provider in China, ASTM A106 GRB steel is our superior product, we are favored by customers with high quality, competitive price and excellent service
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
ASTM A106 Grade B Seamless Carbon Steel Pipe | High-Temperature & High-Pressure Service Pipe
Exclusively Seamless Production (No ERW Type) | Full Sizes 1/8–24 in. Stock & Custom | MTC EN 10204 3.1 Certified
100% Seamless PipeExclusively produced as seamless pipe — eliminates weld seam defects, uniform structural integrity throughout.
High-Temp & High-Pressure Ready240 MPa min yield strength with stable performance in harsh industrial thermal service environments.
Full Sizes & Fast Delivery1/8–24 in. full size range with sufficient stock — 3–7 days stock delivery, 15–30 days custom.
01What Is ASTM A106 Grade B
ASTM A106 Grade B is a premium seamless carbon steel pipe specifically engineered for high-temperature and high-pressure service conditions. As the most widely used grade in the A106 standard series, it features stable chemical composition, outstanding high-temperature pressure resistance and consistent mechanical stability. It can operate reliably for a long time under harsh industrial thermal service environments.
Exclusively produced as seamless pipe, A106 Grade B eliminates weld seam defects, delivering uniform structural integrity and excellent thermal stability. It is the preferred material for boiler systems, power generation, petrochemical refining and marine high-temperature piping, suitable for conveying high-pressure and high-temperature liquid and gas media in critical industrial facilities.
02Product Specifications
We supply full-size ASTM A106 Grade B seamless carbon steel pipes with complete standard compliance and sufficient stock. Custom sizing and one-stop precision processing services are available to meet diverse high-temperature industrial project requirements.
Item
Specification Details
Steel Grade
ASTM A106 Grade B
Executive Standard
ASTM A106 / A106M Standard
Pipe Type
Seamless Carbon Steel Pipe (No ERW Welded Type)
Outer Diameter
1/8" – 24", support custom outer diameter
Wall Thickness
SCH20SCH40SCH80SCH160customizable thickness as required
High-temperature & high-pressure industrial piping, boiler, power plant and petrochemical systems
Surface Condition
Smooth inner & outer surface, uniform wall thickness, no defects
MOQ
1 Ton / Negotiable
Delivery Time
3–7 days (stock); 15–30 days (custom)
Custom Service
Custom size, cutting, threading, bending and precision processing
Certification
MTC / EN 10204 3.1 / Third-party inspection available
Payment Terms
T/T, L/C, Western Union, Trade Assurance
03A106 Grade B Global Equivalent Grades
ASTM A106 Grade B has multiple internationally recognized equivalent grades with matched chemical composition, mechanical properties and high-temperature service performance, supporting cross-standard replacement for most industrial high-temperature and high-pressure projects worldwide.
Standard Region
Equivalent Standard
Equivalent Grade
Chinese GB Standard
GB/T 8163 / GB/T 5310
20# Steel
European EN Standard
EN 10216-2
P235GH
Japanese JIS Standard
JIS G3454
STPG410
American Standard
ASTM A53 / API 5L
Grade B
International ISO Standard
ISO 630
E245
Note: Minor differences exist in standard specifications and tolerance among equivalent grades. For critical high-temperature, high-pressure and long-cycle service projects, please verify detailed project specifications before replacement to ensure operational safety and compliance.
04Chemical Composition (Mass %)
ASTM A106 Grade B adopts precisely controlled low-impurity carbon steel formulation with mandatory silicon content. Strict chemical component control guarantees excellent weldability, stable high-temperature structural performance and qualified mechanical properties for long-term thermal service conditions.
Element
Content Requirement (%)
C (Carbon)
Max 0.30
Mn (Manganese)
0.29 – 1.06
P (Phosphorus)
Max 0.035
S (Sulfur)
Max 0.035
Si (Silicon)
Min 0.10(mandatory minimum)
Cr (Chromium)
Max 0.40
Cu (Copper)
Max 0.40
Mo (Molybdenum)
Max 0.15
Ni (Nickel)
Max 0.40
V (Vanadium)
Max 0.08
05Mechanical Properties
ASTM A106 Grade B features stable mechanical performance at both room and high temperatures, with sufficient strength and ductility to resist thermal deformation and pressure impact, fully meeting long-term high-temperature and high-pressure industrial service requirements.
240 MPaMinimum Yield Strength35,000 psi
415–550 MPaTensile Strength60,000 psi Min
22%Minimum Elongation50mm Gauge Length
06Application Fields
Relying on superior high-temperature stability and high-pressure bearing capacity, ASTM A106 Grade B seamless pipes are widely adopted in critical industrial thermal piping systems for conveying hot and cold liquid and gas media.
Power Generation Industry
Power plant boiler piping, high-pressure steam transmission pipelines, thermal power auxiliary piping systems.
Petrochemical Industry
Oil & gas refinery piping, high-temperature reaction vessel connecting pipes, chemical medium transmission pipelines.
Marine Engineering
Marine high-temperature and high-pressure service piping, ship thermal medium conveying systems.
Send us your pipe size (OD × Wall Thickness), quantity and project requirements. We will reply with stock status, competitive wholesale quotation and complete certification documents within 24 hours.
BBN Steel has established a complete set of production and supplier management system processes to ensure the improvement of product quality and better service to users.
Production Control
BBN Steel has established a complete production quality control process to ensure every link from research and development to mass production.
Supplier management
Our supplier selection will consider factors such as health and safety, ethics, environmental protection, price and quality to better serve customers.
Certification & Patent
We have successively won various international authoritative certifications, GB /T19001-ISO9001: 2000 quality management system was implemented.
After sales service
We provide booking space, shipping tracking service and after-sales service, we will always be first-class products and perfect pre-sale and after-sales service.
Get in Touch
Welcome to contact us through online consulting, emails and hotline if you are interested in our company or products. Our staff will reply you within 24 hours.
Address: HIGH-TECH DEVELOPMENT ZONE, ZHENGZHOU, CHINA
