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Q345 seamless alloy steel pipe

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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.

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Company Info.

Hebei Lufeng Piping Equipment Co., Ltd.

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Q345 seamless alloy steel pipe

Q345 seamless alloy steel pipe

Q345 seamless alloy steel pipe

alloy seamless steel pipe 12cr1mov

alloy steel seamless p1 pipe

st35.8 seamless steel pipe

Q345 seamless alloy steel pipe

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