Nahtlose Kohlenstoff-Molybdän-Legierung-Stahl-Kessel- und Überhitzerrohre ASTM A209

Herkunft: China Standard: ASTM A209/A209M-03
Stahlsorte: T1, T1a, T1b
Größe: OD (20-1200 mm) x WT (25-150 mm)
Anwendung: Wird für Kessel, Wärmetauscher verwendet.

Chemical composition (%)
Grade	C	Mn	P	S	Si	Mo
T1	0.10~0.20	0.30~0.80	≤0.025	≤0.025	0.10~0.50	0.44~0.65
T1a	0.15~0.25	0.30~0.80	≤0.025	≤0.025	0.10~0.50	0.44~0.65
T1b	≤0.14	0.30~0.80	≤0.025	≤0.025	0.10~0.50	0.44~0.65

Mechanical properties
Grade	Tensile strength (Mpa)	Yield strength (Mpa)	Elongation (%)           S≥8mm	Elongation (%)         S<8mm	Elongation(%) Standard circle
T1	≥380	≥205	≥30	<30	≥22
T1a	≥415	≥220	≥30	<30	≥22
T1b	≥365	≥195	≥30	<30	≥22
Note:	A sample of the longitudinal S < 8mm, wall thickness of each 0.8mm, minimum elongation values from the above basic elongation of minus 1.5%.

Hardness requirements	Grade	S≥5.1mm (Brinell hardness)	S<5.1mm (rockwell hardness)
	T1	≤146HB	≤80HRB
	T1a	≤153HB	≤81HRB
	T1b	≤137HB	≤77HRB

Produktgruppe : Nahtloses Stahlrohr > Rohr aus legiertem Stahl