Q345C Seamless steel pipe manufacturer

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What is Q345C Seamless steel pipe?

Q345C seamless steel pipe is a strip steel with no joints around and a hollow section, which is widely used as a pipe for conveying fluids. Seamless steel tubes have hollow sections and are widely used in pipelines for conveying fluids, such as oil, natural gas, natural gas, water, and some solid substances.
The implementation standard of Q345 is GB/T 1591-2008. In the standard, Q355 steel grade is used to replace Q345 steel grade.

Chemical composition and mechanical properties of Q345C seamless steel pipe

chemical composition:

C≤0.2%, Mn 1.0-1.6%,
Si ≤0.55%,S ≤0.35%,
P≤0.35%,V 0.02-0.15%,
Nb 0.015-0.06%,Ti 0.02-0.2%,
AL ≥0.015%

Mechanical behavior:

Yield strength: ≥ 345MPa (thickness below 16mm)
Tensile strength: 470-630MPa
Elongation: 22%
Impact energy: ≥34J (test temperature 0°)

180°bending test:

D=2a (thickness below 16mm)

chemical composition of Q345C Seamless steel pipe

Grade	C	Si	Mn	P	S	Ni	Cr	Cu	V	Nb
Q345C	0.12-0.20	0.20-0.60	1.00-1.60	≤0.045	≤0.045	≤0.30	≤0.30	≤0.20	0.02-0.15	0.015-0.06

mechanical property of Q345C Seamless steel pipe

Grade	Yield Strength (MPa)	Ultimate Tensile Strength (MPa)	Elongation at Break (%)
Q345C	345	490-675	22

Product Introduction of Q345C Seamless steel pipe

Standard	API, ASTM, BS, DIN, GB, JIS
Outer Dia:	21.3mm-660mm
Wall Thickness	0.5mm-20mm
Dia Tolerance	Control with in the standard, OD:+-1%, WT:+-10%
Materials	10#,20#,45#,Q235,Q345,Q195,Q215,Q345C,Q345A
	ASTM A53A/A53B/ A178C/A106B API5L
	ST37,ST37-2,DIN 1629 ST35, ST45,DIN 17175 ST35.8,DIN 17175 19Mn5
	16Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9,P11,P12,P22,P91,P92,15CrMO,Cr5Mo,10CrMo910,12CrMo,13CrMo44,30CrMo,A333 GR.1,GR.3,GR.6,GR.7
	Gr.B,X42,X46,X52,X60,X65,X70,X80,X100
Inspection	ISO,BV,SGS,MTC
Packing	Steel strip packed. Standard Export Seaworthy Package.Suit forall kinds of transport,or as required
Application	Widely used in Structure, Accessorize,Construction, Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on
MOQ	5metric ton,sample order accepted
Shipment time	Within 7-10 workdays after receiving deposit or L/C

Application of Q345C seamless steel pipe

Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, steel scaffolding, etc. Seamless steel tubes have hollow sections and are widely used in pipelines for conveying fluids, such as oil, natural gas, natural gas, water, and some solid substances.
Q345C seamless steel pipes can be divided into hot-rolled pipes, cold-drawn pipes, extruded pipes, etc. according to different production methods.

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