Mechanical Seamless Tubes & Pipes

LBST produces Cold drawn mechanical tubes made of non – alloy and alloy steel, that meet various international standards, including ASTM A519. Moreover, mechanical seamless pipes can be manufactured according to customer specifications, in non standard sizes, with varying dimension and tolerances.

Speci-fication	Grade	Chemical Composition [%]									Mechanical Properties
Speci-fication	Grade	C	Mn	Si	S	P	Cr	Mo	Cu	Ni	Yield Strength	Tensile Strength	% Elongation (L=5.65√S0)	Other
Carbon/Alloy Steel Tubes and Pipes for Heat Exchanger and Boiler
Hydrocarbon Process Industry/Structural/Pressure Vessel Tubes
ASTM A-53	A	0.25	0.95	0.35	0.05	0.045	0.40	0.15	0.40	0.40	30,000	48,000	20	36
ASTM A-53	B	0.30	1.20	0.35	0.05	0.045	0.40	0.15	0.40	0.40	35,000	60,000	30	36
ASTM A-106	B	0.30	1.06	0.35	0.05	0.035	0.40	0.15	0.40	0.40	35,000	60,000	30	36
ASTM A333	Gr. 6	0.30	1.06	0.35	0.05	0.035	0.40	0.15	0.40	0.40	35,000	60,000	30	36
Seamless Cold Drawn Precision Steel Tubes
EN 10305-4	E235	0.17	1.20	0.35	0.025	0.025	–	–	–	–	225	340	25	–
EN 10305-1	E355	0.22	1.60	0.35	0.025	0.025	–	–	–	–	355	490	22	–
DIN 2391
DIN 2391	St 35	0.17	0.70	0.35	0.025	0.025	–	–	–	–	235	360	25	–
DIN 2391	St 52	0.22	1.60	0.55	0.025	0.025	–	–	–	–	355	490	22	–
Boiler / Heat Exchanger / Superheater & Condenser Tubes
ASTM A179	–	0.10	0.50	0.35	0.035	0.035	–	–	–	–	26,000	47,000	35	–
ASTM A210	Gr. C	0.35	0.80	0.35	0.035	0.035	–	–	–	–	60,000	70,000	30	–
BS 3059	Part II	0.30	1.00	0.35	0.030	0.030	–	–	–	–	40,000	75,000	30	93,000
Railways
IS 1161	YSt 210 / 240 / 310 / 355	0.25	1.30	0.35	0.045	0.045	–	–	–	–	30,500	45,000	23	–

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Mechanical Seamless Tubes & Pipes

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