A199 Cold Drawn Seamless Alloy Steel Pipe
ASME SA 199 Round Pipes
A199 is a type of carbon structural steel in the American standard. It is mainly used in situations where strength requirements are not high. Its yield strength and tensile strength range are 250~400MPa and 400~620MPa respectively. Since it contains more than 0.2% alloying elements
A199 heat exchanger tubes exhibit superior overall mechanical properties. This kind of steel pipe can be manufactured by two processes: seamless cold drawing or hot rolling, the specific choice depends on the actual needs. The use of seamless cold drawing process helps improve the dimensional accuracy and surface quality of pipes.
A199 alloy steel pipe is usually made of low carbon steel, which gives it good plasticity and toughness and is easy to process. However, its corrosion resistance is limited, and for special environments requiring higher corrosion resistance, other alloy materials may need to be considered.
A199 alloy structural steel pipe is widely used in pipelines for transporting fluids, such as oil and natural gas, due to its good corrosion resistance and fluid sealing properties.
Chemical Components (%) Of ASTM A199 Round Tubes
| 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 |
Mechanical Properties Of ASME SA 199 Heat Exchanger Pipes
| 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 Boiler & Condenser Tubes
ASTM A199/A199M, Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger and Condenser Tube
Outer Diameter:3.2-76.2 mm
Wall Thickness: 1mm~150mm (SCH10 ~ XXS)
Length: 5.8m~12m,etc
Grades:T4,T5,T9,T11
Applicable temperature:These heat exchangers are designed for service temperatures ranging from – 100°C to +625°C (-150°F to 1150°F).
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