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What are ASTM A213 Alloy Steel T1 Tubes?
ASTM A213 alloy steel T1 pipe is a seamless steel pipe made of ferritic and austenitic alloy steel and meets the provisions of ASTM standard A213. The specific grade of this steel pipe is T1, which has excellent tensile strength, corrosion resistance and high temperature strength.
What are Alloy Steel T9 Tubes?
Alloy Steel T9 Tubes are seamless ferritic alloy steel tubes designed to withstand high temperatures and pressures. They are made of a type of steel that contains small amounts of carbon, manganese, and silicon, as well as higher amounts of chromium and molybdenum, to provide excellent resistance to oxidation, corrosion, and deformation at high temperatures. Alloy Steel T9 Tubes are commonly used in boilers, super heaters & heat exchangers in power plants & other industrial environments.
What are the properties of ASTM A213 T91 tubes?
ASTM A213 T91 tubes have excellent high-temperature strength, corrosion resistance, and toughness. They are able to withstand high-pressure and high-temperature environments and have good creep resistance. Additionally, these tubes have good weldability and formability, making them easy to fabricate.
ASTM A213/ASME SA213 T1 High Pressure Steel Tube Chemical Composition :
| Grade |
UNS |
C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
| T1 |
K11597 |
0.10-0.20 |
0.30-0.61 |
0.025 max |
0.025 max |
0.10-0.30 |
0.50-0.81 |
0.44-0.65 |
Seamless Heat Exchange Alloy Steel T1 Tubes Mechanical properties:
| Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
| 415 min |
205 min |
30 min |
163 max |
ASTM A213/ASME SA213 T9 High Pressure Steel Tube Chemical Composition :
| Grade |
UNS |
C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
| T9 |
K90941 |
0.15 max |
0.30-0.60 |
0.025 max |
0.025 max |
0.25-1.00 |
8.0-10.0 |
0.90-1.10 |
Seamless Heat Exchange Alloy Steel T9 Tubes Mechanical Properties:
| Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
| 415 min |
205 min |
30 min |
179 max |
ASTM A213/ASME SA213 T91 High Pressure Steel Tube Chemical Composition :
| C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
V, % |
N, % |
Ni, % |
Al, % |
Nb, % |
| 0.08-0.12 |
0.3-0.6 |
0.02 max |
0.01 max |
0.2-0.5 |
8.0-9.5 |
0.85-1.05 |
0.18-0.25 |
0.03-0.07 |
0.4 max |
0.04 max |
0.06-0.10 |
Seamless Heat Exchange Alloy Steel T91 Tubes Mechanical Properties:
| Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
| 585 min |
415 min |
20 min |
250 max |
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