Tubería de acero de aleación ferrítica sin costura ASTM A335 para servicio de alta temperatura

Estándar: ASTM A335 / ASME SA335 \ n Grado de acero: P5, P9, P11, P12, P22, P91, P92 \ nTamaño: OD (90-1200 mm) x WT (25-150 mm) \ nAplicación: Se utiliza para calderas, plantas de energía y plantas nucleares.

NPS	OD Tolerance	NPS	WT Tolerance
1/8" ≤ NPS ≤ 1 1/2"	+/- 0.4	1/8" ≤ NPS ≤ 2 1/2" , All T/D ratios.	+20%, -12.5%
1 1/2 < NPS ≤ 4"	+/- 0.79	NPS ≥ 2 1/2" , T/D ≤ 5%	+22.5%, -12.5%
4" < NPS ≤ 8"	+1.59, -0.79	NPS ≥ 2 1/2" , T/D > 5%	+15%, -12.5%
8" < NPS ≤ 12"	+2.38, -0.79	(T= Specified Wall Thickness; D = Specified Outside Diameter)
NPS > 12"	+/- 1%

\ nComposición química: \ n

Chemical Composition (%)

Grade

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

Al

W

Nb

N

P11

0.05~0.15

0.5~1.0

0.3~0.6

≤ 0.03

≤ 0.03

1.0~1.5

0.5~1.0

P12

0.05~0.15

≤ 0.5

0.3~0.61

≤ 0.03

≤ 0.03

0.8~1.25

0.44~0.65

P22

0.05~0.15

≤ 0.5

0.3~0.6

≤ 0.03

≤ 0.03

1.9~2.6

0.87~1.13

P5

≤ 0.15

≤ 0.5

0.3~0.6

≤ 0.03

≤ 0.03

4.0~6.0

0.45~0.65

P91

0.08~0.12

0.2~0.5

0.3~0.6

≤ 0.02

≤ 0.01

8.0~9.5

0.85~1.05

≤ 0.4

0.18~0.25

≤ 0.015

0.06~0.10

0.03~0.07

P92

0.07~0.13

≤ 0.5

0.3~0.6

≤ 0.02

≤ 0.01

8.5~9.5

0.3~0.6

B0.001 0.006

≤ 0.4

0.15~0.25

≤ 0.015

1.5~2.0

0.04~0.09

0.03~0.07

\ nPropiedades mecánicas: \ n

Mechanical Properties
Grade	Tensile strength(MPa)	Yield strength(MPa)	Elongation(%)	Impact energy(J)	Hardness
P11	≥ 415	≥ 205	≥ 22	≥ 35	≤ 163HB
P12	≥ 415	≥ 220	≥ 22	≥ 35	≤ 163HB
P22	≥ 415	≥ 205	≥ 22	≥ 35	≤ 163HB
P5	≥ 415	≥ 205	≥ 22	≥ 35	≤ 187HB
P91	585~760	≥ 415	≥ 20	≥ 35	≤ 250HB
P92	≥ 620	≥ 440	≥ 20	≥ 35	250HB

Grupos de Producto : Tubo de acero sin costura > Tubo de acero aleado