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BS3100 1991 Cast
Steel Chemical Composition
The following standard is
the part 1 of the
BS3100 1991. Including Grade A1,
A2, A3, A4, A5, A6, AL1, AL2, AL3, BL2,
AM1, AM2, AW1, AW2, AW3. It is the chemical
composition limits for the cast analysis
of carbon, carbon manganese and low
alloy steel castings. This is a British
standard. Our foundry can
produce all materials in this standard.
Table 1. Chimical composition limits for the
cast analysis of carbon, carbon manganese and low alloy
steel castings |
steel |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
Cu |
Nb |
Sn |
V |
Total residuals max |
|
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
%(m/m) |
Carbon and carbon - manganese steels |
A1 |
0.25 |
0.60 |
0.90 |
0.050 |
0.060 |
0.30 |
0.15 |
0.40 |
0.80 |
- |
- |
- |
0.80 |
A2 |
0.35 |
0.60 |
1.0 |
0.050 |
0.060 |
- |
- |
- |
- |
- |
- |
- |
- |
A3 |
0.45 |
0.60 |
1.0 |
0.050 |
0.060 |
- |
- |
- |
- |
- |
- |
- |
- |
A4 |
0.18 to 0.25 |
0.60 |
1.2 to 1.6 |
0.050 |
0.060 |
- |
- |
- |
- |
- |
- |
- |
- |
A5 |
0.25 to 0.33 |
0.60 |
1.2 to 1.6 |
0.050 |
0.060 |
- |
- |
- |
- |
- |
- |
- |
- |
A6 |
0.25 to 0.33 |
0.60 |
1.2 to 1.6 |
0.050 |
0.060 |
- |
- |
- |
- |
- |
- |
- |
- |
For use at low temperatures |
AL1 |
0.20 |
0.60 |
1.1 |
0.040 |
0.040 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
AL2 |
0.25 |
0.60 |
1.2 |
0.040 |
0.040 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
AL3 |
0.25 |
0.60 |
1.2 |
0.040 |
0.040 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
BL2 |
0.12 |
0.60 |
0.80 |
0.030 |
0.030 |
- |
- |
3.0 to 4.0 |
- |
- |
- |
- |
- |
High magnetic permeability |
AM1 |
0.15 |
0.60 |
0.50 |
0.050 |
0.050 |
0.30 |
0.15 |
0.4 |
0.30 |
- |
- |
- |
0.80 |
AM2 |
0.25 |
0.60 |
0.50 |
0.050 |
0.050 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
For case hardening |
AW1 |
0.10 to0.18 |
0.60 |
0.60 to 1.0 |
0.050 |
0.050 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
Resistance to wear and for surface
hardening |
AW2 |
0.40 to0.50 |
0.60 |
1.0 |
0.050 |
0.050 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
- |
0.80 |
AW3 |
0.50 to 0.60 |
0.60 |
1.0 |
0.050 |
0.050 |
0.30 |
0.15 |
0.40 |
0.30 |
- |
- |
-0.80 |
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