Carbon Steel Pipes & Tubes

Chemical Composition & Mechanical Properties of Carbon Steel Pipes & Tubes

Specification	Grade	C (Max)	Mn (Max)	P (Max)	S (Max)	Si (Max)	Cr (Max)	Mo (Max)	Ni (Max)	Cu (Max)	Yield Strength (Min) MPa	Tensile Strength (Min) MPa	% Elongation	Hardness (Max)
ASTM A106	Grade A	0.25	0.27-0.93	0.035	0.035	0.10	0.40	0.15	0.40	0.40	205	330	20	72 HRB
ASTM A106	Grade B	0.30	0.29-1.06	0.035	0.035	0.10	0.40	0.15	0.40	0.40	240	415	20	85 HRB
ASTM A106	Grade C	0.35	0.29-1.06	0.035	0.035	0.10	0.40	0.15	0.40	0.40	275	485	18	90 HRB
ASTM A53	Grade A	0.25	0.95	0.05	0.045	0.10	0.40	0.15	0.40	0.40	205	330	20	72 HRB
ASTM A53	Grade B	0.30	1.20	0.05	0.045	0.10	0.40	0.15	0.40	0.40	240	415	20	85 HRB

Category	Details
Standard Pipe Dimensions	Outer Diameter (OD): 1/8" (0.375") to 48" (12.5 cm)
	Wall Thickness (WT): Varies from Schedule 10 to Schedule 160
	Schedules: 5, 10, 20, 40, 80, 160, XXS (Extra Extra Strong), etc.
Pipe Manufacturing Process	Seamless Pipe: Formed from a solid billet, no welding required
	Welded Pipe: Made from welded stainless steel coils
	ERW (Electric Resistance Welded): Uses electric resistance for welding
	Spiral Welded Pipe: Weld spirally wound around the pipe (for large sizes)
Surface Finishes	Mill Finish: Basic finish from manufacturing
	Pickled and Passivated: Removes scale and oxide for better corrosion resistance
	Polished: Mirror or satin finish for aesthetic and sanitary applications
	Brushed: Textured, non-reflective surface for architectural use
Applications	Industries Served: Food & Beverage, Chemical & Petrochemical, Marine & Offshore, Oil & Gas

Spec	Outside Dia.	Pipe Body	Pipe End	Wall Thickness	Weight	Length (Nominal)	Avg (mm)	Minimum	Maximum
ASTM A106	±0.1%	N.A.	+10%, -5%	±10%	+10%	Upto 6m: ±3mm	±3mm	-6mm	+6mm
ASTM A53	±0.15 to ±0.38mm	N.A.	+10%, -5%	±10%	+10%	Upto 6m: ±3mm	±3mm	-6mm	+6mm