Q345B Seamless Steel Pipe

Q345B seamless steel pipe‌ is a low-alloy high-strength structural steel with excellent mechanical properties and welding properties. It is widely used in construction, machinery, petroleum, chemical industry and other fields.

standard:GB

Surface :1. Galvanized 2. Black and Color Painting

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introduction

Q345B seamless low alloy steel pipe was formerly known as 16Mn seamless steel pipe, which is the most common material in the low alloy series.
Q345B seamless steel pipe can be divided into hot-rolled seamless pipe and cold-rolled seamless pipe. According to the purpose, it can be divided into seamless steel pipe for general structure, seamless steel pipe for conveying fluid, etc. GNEE supplies Q345B alloy structural steel pipe with good comprehensive mechanical properties, good weldability, cold and hot processing performance and corrosion resistance, and good low temperature toughness. It is mainly used for high load welded structural parts such as ships, boilers, pressure vessels and lifting and transportation machinery.

Data table

Q345B High Strength Structural Steel Pipe Chemical Composition and Mechanical Property

Grade	C %	Si %	Mn	P %	S %
Q345B	≤0.20	≤0.55	1.00-1.60	≤0.040	≤0.040

Grade	Thickness	Yield Strength (Mpa)	Tensile Strength	Elongation	Impact Energy
Grade	(mm)	Yield Strength (Mpa)	(MPa)	(%)	Min
Q345B	≤ 16	345	470-630	21	20	34J
	>16-35	325	470-630	21	20	34J
	>35	295	470-630	21	20	34J
The min impact energy is longitudinal energy

company advantage

Why Choose GNEE

GNEE has been engaged in the steel industry for more than 16 years. It has two steel pipe and plate series production and processing factories and three storage warehouses. Our annual production scale can reach 500,000 tons, and the warehouse inventory exceeds 20,000 tons per year.
In addition, we can also provide processing procedures for steel products, such as rust prevention, cutting and chamfering, connection, heat treatment, bending, galvanizing, polishing, beveling, pickling, spraying, CNC machining, etc.
If you would like to know more about our company or our products, please feel free to contact us.

FAQ

Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.