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Q345 seamless alloy steel pipe

Categories	Steel Pipes & Tubes
Place of Origin:	Cangzhou, China (Mainland)
Packaging Details:	In bundles,in bulk,plastic waterproof package for Q345 seamless alloy steel pipe

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Hebei Lufeng Piping Equipment Co., Ltd.

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Q345 seamless alloy steel pipe

Q345 seamless alloy steel pipe

(1)Normal size:

sizes	outer diameter(mm)	thickness(mm)	tolerance(mm)	length(m)
round pipe	20-273	0.3-50	±0.3	3,6,8,12,etc
rectangular pipe	2030-150250	0.3-12	±0.3	3,6,8,12,etc
square pipe	2020-200200	0.3-12	±0.3	3,6,8,12,etc

(2) Chemical element:

Grade	C	Si	Mn	P	S	Al
Q345A	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	Al≥0.015
Q345B	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	Al≥0.015
Q345C	≤0.20	≤0.50	≤1.70	≤0.030	≤0.030	Al≥0.015
Q345D	≤0.18	≤0.50	≤1.70	≤0.030	≤0.025	Al≥0.015
Q345E	≤0.18	≤0.50	≤1.70	P≤0.025	≤0.020	Al≥0.015
Grade	Ti	Cr	Ni	Mo	Nb	V
Q345A	≤0.20	≤0.30	≤0.012	≤0.10	≤0.07	≤0.15
Q345B	≤0.20	≤0.30	≤0.012	≤0.10	≤0.07	≤0.15
Q345C	≤0.20	≤0.30	≤0.012	≤0.10	≤0.07	≤0.15
Q345D	≤0.20	≤0.30	≤0.012	≤0.10	≤0.07	≤0.15
Q345E	≤0.20	≤0.30	≤0.012	≤0.10	≤0.07	≤0.15

(3) Mechanical properties

Annealing hardness	Cold pull hardness	Preheating temperature	Quenching temperature		Holding time	Hardening medium	Temper temperature	After tempering hardness
HBS	HBS	℃	℃		min		℃	≥HRC
			salt-bath furnace	controlled atmosphere furnace
235	262	788	1191	1204	5~15	air cooling	522	60

Application
(1) For liquid transportation:water supply,water drainage,sewage treatment,engineering,transmission of mud,sea water.

(2) For gas:gas,steam,liquefied petroleum gas.

(3) For structure:piling pipe,bridge,Dock,road,building structure pipe,Marine piling pipe.

Company Information

Operation Philosophy
Create value for customers, and achieve a win-win situation.
Corporation values
Integrity, innovation, team work and high-quality.

Product Tags:

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Q345 seamless alloy steel pipe

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