GB T 8162 Q345B Structural Steel Pipe

GB T 8162 Q345B Structural Steel Pipe

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Description: GB/T 8162 specifies the order contents, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates for seamless steel tubes for structural use.

Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

Lead Time:

Quantity(Metric Tons) 1 - 10 10 - 50 >50
Est. Time(days) 5 10 Negotiable

E-mail: [email protected]

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Product Introduction

GB/T 8162 specifies the order contents, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates for seamless steel tubes for structural use. GB/T 8162 is suitable for seamless steel tubes for mechanical structures and general engineering structures.

GB/T8162 Q345B Steel Chemical Composition:

Grade

C %

Si %

Mn %

Cr % max

Ni % max

Cu % max

P % max

S % max

Q345B

< 0.20

< 0.50

< 1.70

0.30

0.20

0.30

0.30

0.30

GB/T8162 Q345B Steel Mechanical Property:

Steel grade

Tensile strength Rm/MPa

Yield Strength Rel/MPa

Break elongation A%

Q345B

470-630

>345

20

The hot rolled GB/T 8162Q345B structure pipe is used as raw material for continuous casting slab or primary rolling slab, which is heated by stepping furnace and descaled by high pressure water, and then enters roughing mill. Roughing material goes through cutting head, tail and then into finishing mill for computer-controlled rolling. After the final rolling, it is then cooled by laminar flow and rewound by coiler to become straight hair coil. The head and tail of straight hair roll often show the shape of tongue and fish tail, thickness, width accuracy is poor, the edge often exists wave shape, folded edge, tower shape defects. Its coil weight is heavy, steel coil inner diameter is 760mm. The general pipe industry likes to use it. After the straight hair coil is processed by the finishing line such as cutting head, cutting tail, cutting edge and straightening and leveling for multiple times, then the straight hair coil is cut or rerolled to become: Q345B hot rolled steel plate, flat hot rolled steel coil, longitudinal cut strip and other products.

Q345B Hot rolled pickling coil becomes hot rolled pickling coil if the oxide skin is removed and oiled. The product has the tendency of replacing the cold-rolled structural pipe in part, the price is moderate, and it is favored by the majority of users.

If you need GB/T 8162 Q345B structural piping steel, please feel free to contact us for quotation.

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About BBN Steel

Henan BEBON Iron & Steel Co., Ltd was founded in 2000, which initially focus on providing high-quality steel products to serve for China's rapid infrastructure development. Based on the advantages of steel resources in domestic market and good reputation, combining with the huge international market demand for steel products, BEBON started the international business in 2010 and successfully being approved and certified by ISO9001:2008, the Registration number is 626014Q11531R0S. With the quality steel products and professional service, BEBON was award the international acclaim from infrastructure, shipbuilding, petroleum industry etc., and gradually grow into a bright star in the steel export industry .

With the exploration and innovation of Bebon people, BEBON gradually formed four major advantageous products: steel plate, steel pipe, stainless steel, special steel, and established our own Machining processing center in order to meet customer's diverse requirements.

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