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ASTM A335

Visão geral padrão:

ASTM A335 is a standard specification governing seamless ferritic alloy steel pipes used in high temperature service. This specification ensures that the materials used can withstand extreme conditions such as high pressure and temperature.

Materiais principais:

Ferritic alloy steels such as P5, P9, P11, P22, and P91.

Escopo de aplicação:

ASTM A335 pipes are mainly used in power generation, petrochemical, and oil and gas industries for boilers, heat exchangers, superheaters, and other equipment exposed to high temperatures and pressures. It is an ideal choice for critical applications in industrial plants and refineries.

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Specification of ASTM A335

PadrãoASTM A335
Processos de fabricaçãoSMLS (Cold Drawn Seamless)
SMLS (Hot Finished Seamless)
Diâmetro externo21.3mm – 610mm (1/2″ – 24″)
Espessura da parede3.2mm – 76mm
Comprimento do tubo6 meters, 12 meters or customized
Grau de açoASTM A335 P1, ASTM A335 P5c, ASTM A335 P15, ASTM A335 P91, ASTM A335 P2, ASTM A335 P9, ASTM A335 P21, ASTM A335 P92, ASTM A335 P5, ASTM A335 P11, ASTM A335 P22, ASTM A335 P122, ASTM A335 P5b, ASTM A335 P12, ASTM A335 P23, ASTM A335 P911
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
End ProcessesSquare Cut, Bevelling, Threading, Grooving
Further ProcessingSoldagem, dobra, perfuração de furos, puncionamento, estampagem, afunilamento, alargamento, expansão

Dimensão

Tabela de dimensões de tubos de aço ANSI B36. 10 & 36.19
Nominal
Tamanho do tubo
Exterior
Diâmetro
(mm)
Espessura nominal da parede Programação
NPSDNODSCH
20
SCH
30
SCH
DST
SCH
40
SCH
60
SCH
XS
SCH
80
SCH
100
SCH
120
SCH
140
SCH
160
SCH
XXS
1/8610.31.451.731.732.412.41
1/4813.71.852.242.243.023.02
3/81017.11.852.312.313.203.20
1/21521.32.412.772.773.733.734.787.47
3/42026.72.412.872.873.913.915.567.82
12533.42.93.383.384.554.556.359.09
1 1/43242.22.973.563.564.854.856.359.70
1 1/24048.33.183.683.685.085.087.1410.15
25060.33.183.913.915.545.548.7411.07
2 1/265734.785.165.167.017.019.5314.02
38088.94.785.495.497.627.6211.1315.24
3 1/290101.64.785.745.748.088.08
4100114.34.786.026.028.568.5611.1313.4917.12
5125141.36.556.559.539.5312.7015.8819.05
6150168.37.117.1110.9710.9714.2718.2621.95
8200219.16.357.048.188.1810.3112.7012.7015.0918.2620.6223.0122.23
10250273.06.357.809.279.2712.7012.7015.0918.2621.4425.4028.5825.40
12300323.86.358.389.5310.3114.2712.7017.4821.4425.4028.5833.3225.40
14350355.67.929.539.5311.1315.0912.7019.0523.8327.7931.7535.71
16400406.47.929.539.5312.7016.6612.7021.4426.1930.9636.5340.49
184504577.9211.139.5314.2719.0512.7023.8329.3634.9339.6745.24
205005089.5312.709.5315.0920.6212.7026.1932.5438.1044.4550.01
225505599.5312.709.5322.2312.7028.5834.9341.2847.6353.98
246006109.5314.279.5317.4824.6112.7030.9638.8946.0252.3759.54
2665066012.709.5312.70
2870071112.7015.889.5312.70
3075076212.7015.889.5312.70
3280081312.7015.889.5317.4812.70
3485086412.7015.889.5317.4812.70
3690091412.7015.889.5319.0512.70
389509659.5312.70
40100010169.5312.70
42105010679.5312.70
44110011189.5312.70
46115011689.5312.70
48120012199.5312.70

Requisito químico

Requisitos químicos
GrauUNS
DesignationA
Composição, %
CarbonoManganêsFósforo
máximo
Enxofre
máximo
SilícioCromoMolibdênioOthers
P1K115220.10-0.200.30-0.800.0250.0250.10-0.50. . .0.44-0.65
P2K115470.10-0.200.30–0.610.0250.0250.10–0.300.50–0.810.44-0.65
P5K415450,15 máximo0.30–0.600.0250.0250,50 máximo4.00–6.000.45–0.65
P5bK515450,15 máximo0.30–0.600.0250.0251.00–2.004.00–6.000.45–0.65
P5cK412450.12 max0.30–0.600.0250.0250,50 máximo4.00–6.000.45–0.65…B
P9S504000,15 máximo0.30–0.600.0250.0250.25– 1.008.00– 10.000.90– 1.10
P11K115970.05–0.150.30–0.600.0250.0250.50– 1.001.00- 1.500.44-0.65
P12K115620.05–0.150.30–0.610.0250.0250,50 máximo0.80– 1.250.44-0.65
P15K115780.05–0.150.30–0.600.0250.0251.15– 1.65. . .0.44-0.65
P21K315450.05–0.150.30–0.600.0250.0250,50 máximo2.65–3.350.80– 1.06
P22K215900.05–0.150.30–0.600.0250.0250,50 máximo1.90–2.600.87– 1.13
P23K416500.04–0. 100.10–0.600.030 max0.010 max0,50 máximo1.90–2.600.05–0.30V 0.20–0.30
Cb 0.02–0.08
B 0.0005–0.006
N 0.030 max
AI 0.030 max
W 1.45-1.75
P91K915600.08–0.120.30–0.600.020.010.20–0.508.00–9.500.85– 1.05V 0. 18–0.25
N 0.03–0.07
Ni 0.40 max
Al 0.04 max
Cb 0.06–0.10
P92K924600.07–0.130.30–0.600.020.010,50 máximo8.50-9.500.30-0.60V 0. 15–0.25
N 0.03–0.07
Ni 0.40 max
Al 0.04 max
Cb 0.04–0.09
W 1.5–2.00
B 0.001–0.006
P122K929300.07–0.140.70 max0.020.010,50 máximo10.00-12.500.25-0.60V 0.15–0.30
W 1.50–2.50
Cu 0.30– 1.70
Cb 0.04–0.10
B 0.0005–0.005
N 0.040–0. 100
Ni 0.50 max
Al 0.040 max
P911K910610.09–0.130.30–0.600.020 max0.01 max0.10-0.508.50-10.500.90-1.10V 0.18–0.25
Ni 0.40 max
Cb 0.060–0.10
B 0.0003–0.006
N 0.04–0.09
Al 0.04 max
W 0.90– 1.10
A New designation established in accordance with Practice E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
B Grade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carbon content.

Requisitos mecânicos

The mechanical requirements for our ASTM A335/A335M standard steel pipe include transverse or longitudinal tensile tests, flattening tests, and hardness or bend tests.

These tests ensure that our pipes can withstand the mechanical stresses encountered during service. They also ensure that our pipes have the necessary hardness and flexibility to withstand bending, flanging, and similar forming operations.

Propriedades mecânicasGrau
P1, P2P12P23P91P92, P911P122All Others
Tensile Strength, min:
ksi55607485909060
MPa380415510585620620415
Yield Strength, min:
ksi30325860645830
MPa205220400415440400205

Classes de aço

We offer our ASTM A335/A335M standardized Steel Pipes in various steel grades, including Grade P2 and P12. These grades are produced using a coarse-grain melting practice, which yields robust and reliable pipes.

Each steel grade has unique properties and advantages, allowing you to choose the one that best suits your needs. Whether you need a pipe with high tensile strength, excellent ductility, or superior resistance to corrosion, we have the steel grade to meet your requirements.

Tolerância de produção

Our ASTM A335/A335M standardized Steel Pipes fulfill strict mechanical requirements. These include transverse or longitudinal tension tests, flattening tests, and hardness or bend tests.

These tests ensure that our pipes can withstand the mechanical stresses they will encounter during service. They also ensure that our pipes have the necessary hardness and flexibility to withstand bending, flanging, and similar forming operations.

By meeting these mechanical requirements, we ensure that our pipes can provide you with reliable and long-lasting service, even under demanding conditions.

Por que escolher a UNIASEN?

  • Our ASTM A335/A335M standard steel pipes meet stringent chemical composition requirements. This ensures our pipes can withstand high-temperature service.

  • Our ASTM A335/A335M standard steel pipes come in many sizes. They range from small diameter pipes for complex systems to large diameter ones for industrial uses. They meet our customers’ diverse needs.

  • Our ASTM A335/A335M standard steel pipes come with detailed specifications including dimensions, production procedures, steel grades, surface coatings, end types, connection methods, and processing services.

  • The end types and connection methods allow for easy, secure installation. This ensures a smooth integration into your operations.

  • Machining services can provide custom solutions to meet your needs.

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