ASTM A199 Heat-Exchanger tubes, Condenser Tubes

ASM A199 Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger and Condenser Tubes.

Standard: ASTM A199

Materials: T5 T9 T11 T22

1.1 this specification covers several grades of minimum-wall-thickness,chromium-molybdenum-silicon,seamless,cold-drawn,intermediate alloy steel tubes for heat exchangers, condensers, and similar heat transfer apparatus.

1.2 The tubing sizes usually furnished to this specification are 1/8 to3in(3.2 to 76.2mm) in outside diameter, tubing having other dimensions may be furnished provided such tubes comply with all other requirements of this specification.

1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in(3.2mm) in inside diameter or 0.015 in(0.4mm)in thickness.

Chemical analysis of ASTM A199 (%):
Steel grade WT C Mn P
(max)		 S
(max)		 Si Cr Mo
ASTM A199/T4 MW 0.15MAX 0.30-0.60 0.03 0.03 0.50-1.00 2.15-2.85 0.44-0.65
ASTM A199/T5 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50MAX 4.00-6.00 0.45-0.65
ASTM A199/T7 MW 0.15MAX 0.30-0.60 0.03 0.03 0.50-1.00 6.00-8.00 0.45-0.65
ASTM A199/T9 MW 0.15MAX 0.30-0.60 0.03 0.03 0.25-1.00 8.00-10.0 0.90-1.10
ASTM A199/T11 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50-1.00 1.00-1.50 0.44-0.65
ASTM A199/T22 MW 0.50-0.15 0.30-0.60 0.03 0.03 0.50MAX 1.90-2.60 0.87-1.13

* Ni 0.40 max; V 0.18-0.25; Cb 0.06-0.10; N 0.03-0.07; Al 0.04 max

Mechnical Properties of ASTM A199:
Steel grade Tensile Strength
(Mpa)		 Yield Strength
(Mpa)		 Elongation
(%)		 SPECIFIC REQUIREMENT
ASTM A199/T4 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T5 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T7 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T9 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T11 415MIN 170MIN 30/22 Hardness 85 HRB MAX
ASTM A199/T22 415MIN 170MIN 30/22 Hardness 85 HRB MAX
Usage:
Steel pipe are ubiquitous and can be found underground and within residential walls, laboratories, and commercial and industrial structures. Seamless steel pipe transport fluids including water, natural gas, waste and air. Three manufacturing methods exist to produce steel pipes.
Seamless steel pipes are produced using an extrusion mold. Welded steel pipes are produced by rolling a sheet of steel into a tube and welding the seam. Seamless steel pipes are less expensive. The third method is casting. Molten steel is poured into a casting mold.
Our steel pipes and tubes are the preferred choice for processes under the following conditions:
– high temperatures
– aggressive media (e.g. acid and lye)
– and/or high pressure
We have a team of experienced professionals with years of experience in manufacturing.
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