Sep 27 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Introduction
Alloy steels are designated by AISI four-digit numbers. They are more susceptible to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
The datasheet given below provides more details about AISI A387 grade 22-PVQ alloy steel.
Chemical Composition
The chemical composition of AISI A387 grade 22-PVQ alloy steel is listed in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
95.1 - 96.75 |
|
Chromium, Cr |
2.0 - 2.50 |
|
Molybdenum, Mo |
0.90 - 1.10 |
|
Silicon, Si |
0.50 |
|
Manganese, Mn |
0.30 - 0.60 |
|
Carbon, C |
0.050 - 0.15 |
|
Phosphorous, P |
0.025 |
|
Sulfur, S |
0.025 |
Physical Properties
The following table shows the physical properties of AISI A387 grade 22-PVQ alloy steel.
|
Properties |
Metric |
Imperial |
|
Density |
7.7 – 8.03 g/cm3 |
0.278 – 0.290 lb/in³ |
Mechanical Properties
The mechanical properties of AISI A387 grade 22-PVQ alloy steel are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength, ultimate |
515 - 690 MPa |
74700 - 100000 psi |
|
Tensile strength, yield |
310 MPa |
45000 psi |
|
Rupture strength (@600°C, time 3.60e+8 sec/1110°F, time 100000 hour) |
38 MPa |
5510 psi |
|
Elastic modulus |
190-210 GPa |
27557-30458 ksi |
|
Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
|
Elongation at break |
18 % |
18 % |
Other Designations
Other designations that are equivalent to AISI A387 grade 22-PVQ alloy steel include the following:
-
ASTM A182 (F22-1)
-
ASTM A199 (T22)
-
ASTM A200 (T22)
-
ASTM A213 (T22)
-
ASTM A234 (WP22)
-
ASTM A250 (T22)
-
ASTM A335 (P22)
-
ASTM A336 (F22, F22a)
-
ASTM A369 (FP22)
-
ASTM A387 (22, 22L)
-
ASTM A508 (22B)
-
ASTM A542 (A, B)
-
DIN 1.7380