Boiler & Heat Exchanger Tubes

LBST manufactures seamless tubes and seamless pipes serving the power generation industry, where critically high temperatures and pressures necessitate rigorous quality standards. Made of carbon, alloy, and stainless steel, seamless tubes conform to all major standards, as applicable by the customers. LBST produces a wide range of high quality cold drawn seamless tubes for Boiler, Heat Exchanger, Superheater and Condenser applications.

Specification	Grade	Chemical Composition [%]									Mechanical Properties
Specification	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	E250D A210/09
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	36L/28ST
ASTM A-106	C	0.35	1.20	0.35	0.05	0.035	0.40	0.15	0.40	0.40	40,000	70,000	30	ST 52ST
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 FOR MECHANICAL APPLICATIONS / HYDRAULIC / PNEUMATIC POWER SYSTEMS
EN 10305-4	E235	0.17	1.20	0.35	0.025	0.025	-	-	-	-	225	340	25	22
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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