Standard

ASME SA192/SA192M

ASME SA192/SA192M Standard covers minimum-wall thickness, seamless carbon steel boiler and superheater tubes for high- pressure service.


ASME SA192/SA192M Tubes sizes and thicknesses usually furnished to this specification are 1⁄2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.


ASME SA192/SA192M Tubes mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.


Size Range: OD:1/4" (6.25mm) to 4" (101.6mm), WT 0.02" (0.9mm) to 0.5"(12.7mm)

Wall Thickness: 0.9mm to 10mm

Length: 3000 MM – 16000 MM

Length: Single Random, Double Random & Required Length, Custom Size – 12m lengths

Ends: Plain end or beveled end, square cut, burr free ,Plastic Cap at Both end

Process: Cold drawn, Cold rolled, Hot rolled

Heat Treatment: Hot-finished tubes need not be heat treated. Cold- finished tubes shall be heat treated after the final cold-finishing at a temperature of 1200°F [650°C] or higher.


Outside Diameter & Tolerance

Hot rolled

Outside Diameter, mm

Tolerance, mm

OD≤101.6

+0.4/-0.8

101.6<OD≤177.8

+0.4/-1.2



Cold Drawn

Outside Diameter, mm

Tolerance, mm

OD<25.4

±0.10

25.4≤OD≤38.1

±0.15

38.1<OD<50.8

±0.20

50.8≤OD<63.5

±0.25

63.5≤OD<76.2

±0.30

76.2≤OD≤101.6

±0.38

101.6<OD≤177.8

+0.38/-0.64


Wall thickness & Tolerance

Hot rolled

Outside Diameter, mm

Tolerance, %

OD≤101.6, WT≤2.4

+40/-0

OD≤101.6, 2.4<WT≤3.8

+35/-0

OD≤101.6, 3.8<WT≤4.6

+33/-0

OD≤101.6, WT>4.6

+28/-0

OD>101.6, 2.4<WT≤3.8

+35/-0

OD>101.6, 3.8<WT≤4.6

+33/-0

OD>101.6, WT>4.6

+28/-0

Cold Drawn

Outside Diameter, mm

Tolerance, %

OD≤38.1

+20/-0

OD>38.1

+22/-0


Chemical Composition

Element

A/SA 192

C

0.06-0.18

Mn

0.27-0.63

P

≤ 0.035

S

≤ 0.035

Si

≤ 0.25


Mechanical & Physical Properties

Element

A/SA 192

Tensile Strength (MPa)

≥325

Yield Strength (MPa)

≥180

Elongation %

≥35

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