ASTM A691 GRADE 1 CR Alloy Steel Pipe
As a chromium-molybdenum alloy pipe type, SA A691 Grade 1 CR contains 9% chromium and 1/2% molybdenum steel and is made from A387/A387M Grade 12 plate.
A691 Cr-Mo series steels have strong fracture resistance along with good creep characteristics and corrosion resistance making them very suitable for pressure purposes. The properties of ASTM A691 Grade 1 CR Alloy Steel Pipe make it very suitable for pressure purposes.
A691 Grade 1Cr Chemical Analysis:
|
Designation |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
|
ASTM A691 1Cr |
0.05-0.17 |
0.40- 0.65 |
0.035 |
0.035 |
0.50-0.80 |
1.00-1.50 |
0.45-0.65 |
A691 Grade1Cr Physical Property:
|
Designation |
Tensile strength ksi [MPa] |
Yield strength, min ksi [MPa] |
Elongation in 8 in. [200mm], min % |
|
ASTM A691 Grade1 Cr |
65300 - 84800 [450 - 585] |
39900 [275] |
22 |
To improve its mechanical properties, steel is alloyed with a variety of elements in a total amount ranging from 1.0% to 50% by weight to produce alloy steel. Alloy steel, in addition to carbon, contains significant amounts of elements such as nickel, tungsten, molybdenum, chromium, silicon, manganese, vanadium and smaller amounts of commonly used elements such as sulfur, silicon and phosphorus. The addition of these alloying elements gives the steel increased strength, chemical resistance and hardness.
The most useful properties of ASTM A691 GRADE 1 CR Alloy Steel Pipe that make it efficient include features such as enhanced strength, toughness, hardness, hardenability, wear resistance, corrosion resistance and hot hardness, all of which our products can provide.
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