STRUCTURAL SEAMLESS PIPES & TUBES

LBST produces cold drawn hollow sections of non–alloy and fine grain tubes according to applicable standards, including ASTM A53. Also such standard pipes are manufactured for use in transportation of Steam, Gas and water supply.

Carbon/Alloy Steel Tubes and Pipes for Heat Exchanger and Boiler

Specification	Grade	Chemical Composition [%]										Mechanical Properties						Remarks
Specification	Grade	C	Mn	P	S	Si	Cr	Mo	Cu	Ni	V	Yield (Min)	Unit	Tensile (Min)	Unit	% Elong.	Gauge	Remarks
HYDROCARBON PROCESS INDUSTRY / STRUCTURAL / PRESSURE VESSEL TUBES
ASTM A53	A	0.25	0.95	0.05	0.045	0.40	–	–	0.40	0.40	30,000	PSI	48,000	PSI	25	50 mm / WT ≥ 8 mm	as per A20/A09
ASTM A53	B	0.30	1.20	0.05	0.045	0.40	–	–	0.40	0.40	35,000	PSI	60,000	PSI	25	50 mm / WT ≥ 8 mm	as per A20/A09
ASTM A106	A	0.25	0.27–0.93	0.035	0.035	0.10	0.40	0.15	–	–	30,000	PSI	48,000	PSI	30	50 mm / WT ≥ 8 mm	35L / 25T
ASTM A106	B	0.30	0.29–1.06	0.035	0.035	0.10	0.40	0.15	–	0.08	35,000	PSI	60,000	PSI	30	50 mm / WT ≥ 8 mm	30L / 16.5T
ASTM A333	Gr. 6	0.30	0.40–1.06	0.025	0.025	0.10	–	–	–	–	30,000	PSI	55,000	PSI	30	50 mm / WT ≥ 8 mm	–
ASTM A334	Gr. 3	0.19	0.30–0.90	0.025	0.025	0.10	–	–	–	–	35,000	PSI	60,000	PSI	30	50 mm / WT ≥ 8 mm	–
SEAMLESS COLD DRAWN PRECISION STEEL TUBES FOR MECHANICAL APPLICATIONS / HYDRAULIC / PNEUMATIC POWER SYSTEMS
EN 10305-1	E235	0.17	1.20	0.025	0.025	0.35	–	–	–	–	235	MPa	340	MPa	25	room temp.	–
EN 10305-4	E355	0.22	1.60	0.025	0.025	0.55	–	–	–	–	355	MPa	490	MPa	22	room temp.	–
EN 10216-1	P195 TR1	0.13	0.70	0.025	0.025	0.35	0.30	0.08	0.30	0.30	195	MPa	320	MPa	27	—	–
EN 10216-1	P235 TR1	0.16	1.20	0.025	0.020	0.35	0.30	0.08	0.30	0.30	235	MPa	360	MPa	25	—	–
DIN 2391	St 45	0.17	0.40	0.025	0.025	0.35	–	–	–	–	—	—	—	—	—	—	NBK: 340 / GBK: 315
DIN 2391	St 52	0.22	0.60	0.025	0.025	0.55	–	–	–	–	—	—	—	—	—	—	NBK: 470 / 570 / 630 (typ.)
ASTM A519	1010–1045	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	As per Customer requirements
BOILER / HEAT EXCHANGER / SUPERHEATER & CONDENSER TUBES
ASTM A179	—	0.06	0.27–0.63	0.035	0.035	—	—	—	—	—	26,000	PSI	47,000	PSI	35	—	—
ASTM A192	—	0.06	0.27–0.63	0.035	0.035	—	—	—	—	—	26,000	PSI	47,000	PSI	35	—	—
ASTM A210	A-1	0.27	0.93	0.035	0.035	0.10	—	—	—	—	37,000	PSI	60,000	PSI	30	—	WT 16 mm = 235
ASTM A213	T-11 / T-22	0.15	0.30–0.60	0.025	0.025	0.50	1.00	0.44–0.65	—	—	30,000	PSI	60,000	PSI	30	—	—
ASTM A335	P-11 / P-22	0.15	0.30–0.60	0.025	0.025	0.50	1.00	0.44–0.65	—	—	30,000	PSI	60,000	PSI	30	—	—
BS 3059	Part-1	0.23	0.70	0.040	0.040	0.10	—	—	—	—	28,000	PSI	46,000	PSI	30	—	—
BS 3059	Part-2 620/490	0.28	1.40	0.040	0.030	0.50	0.50	0.90	1.20	—	40,000	PSI	71,000	PSI	40	—	WT 16 mm = 235
DIN 1629	St 37 / 52	0.17–0.22	0.40–0.60	0.040	0.035	—	—	—	—	—	—	—	—	—	—	—	WT 16 mm = 225 / 245 / 345
DIN 17175	St 35.8 / 45.8	0.17–0.24	0.40–0.80	0.040	0.035	0.35	—	—	—	—	—	—	—	—	—	—	WT 16 mm = 235 / 255 / 275 / 325 / 355 / 445
RAILWAYS
IS 1239 Pt-I	—	—	—	0.050	0.050	—	—	—	—	—	46,500	PSI	32,0	—	—	—	—
IS 1161	YST-210	0.12	0.60	0.040	0.040	—	—	—	—	—	30,500	PSI	48,000	PSI	33	—	—
IS 1161	YST-240	0.15	1.30	0.040	0.040	—	—	—	—	—	35,000	PSI	59,500	PSI	41	—	—
IS 1161	YST-310	0.25	1.30	0.040	0.040	—	—	—	—	—	45,000	PSI	64,500	PSI	44.5	—	—

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