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Casting |
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Design /Tolerance |
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 Design / Tolerance |
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Main Alloys Cast and Chemical Composition |
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Investment casting tolerance |
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Linear Tolerances |
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Straightness, flatness and parallelism |
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Holes and channels |
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Geometrical |
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Surface quality |
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Machining allowances |
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Liner tolerance for Soluble glass process investment Casting avalible in optional |
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Main Alloys Cast and Chemical Composition
Hua Xing Manufacturing Co Ltd is proud to offer products cast in low Carbon Steel and Stainless Steel alloys. Our material specialties include:
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| CAST ALLOY |
AISI |
C |
Cr |
Ni |
Mo |
Cu |
Fe |
Cb |
Other |
| CA15 |
410 |
0.15 |
11.5-14.0 |
1 |
0.5 |
0.5 |
--- |
--- |
--- |
| CB7Cu-1 |
17-4 PH |
0.06 |
15.5-17.7 |
3.6-4.6 |
--- |
2.5-3.2 |
.15-.35 |
--- |
--- |
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| CF3 |
304L |
0.03 |
17.0-21.0 |
8.0-12.0 |
0.5 |
--- |
--- |
--- |
Mn 1.50 |
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| CF3M |
316L |
0.03 |
17.0-21.0 |
9.0-13.0 |
2.0-3.0 |
--- |
--- |
--- |
--- |
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| CF8 |
304 |
0.08 |
18.0-21.0 |
8.0-11.0 |
0.5 |
--- |
--- |
--- |
Mn 1.50 |
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| CF8C |
347 |
0.08 |
18.0-21.0 |
9.0-12.0 |
--- |
--- |
--- |
8xC-1.0 |
--- |
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| CF8M |
316 |
0.08 |
18.0-21.0 |
9.0-12.0 |
2.0-3.0 |
--- |
--- |
--- |
Mn 1.50 |
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| CG3M |
317L |
0.03 |
18.0-21.0 |
9.0-13.0 |
3.0-4.0 |
--- |
--- |
--- |
--- |
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| CG8M |
317 |
0.08 |
18.0-21.0 |
9.0-13.0 |
3.0-4.0 |
--- |
--- |
--- |
--- |
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| CN7M |
Alloy 20 |
0.07 |
19.0-22.0 |
27.5-30.5 |
2.0-3.0 |
3.0-4.0 |
--- |
--- |
--- |
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| 954 |
Aluminum-Bronze |
--- |
--- |
1.5 max |
--- |
83.0 min |
3.0-5.0 |
--- |
Al 10.0-11.5 |
| 955 |
Aluminum-Bronze |
--- |
--- |
3.0-5.5 |
--- |
78.0 min |
3.0-5.0 |
--- |
Al 8.5-9.5 |
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Pb .03 max |
| HH |
ASTM-A297 |
0.20-0.50 |
24.0-28.0 |
11.0-14.0 |
0.05 |
1 |
BAL |
--- |
Mn 2.00 |
| HK |
ASTM-A297 |
0.20-0.60 |
24.0-28.0 |
18.0-22.0 |
0.05 |
1 |
BAL |
--- |
Mn 2.00 |
| HN |
HI-35 |
0.20-0.50 |
19.0-23.0 |
23.0-30.0 |
0.05 |
1 |
BAL |
--- |
Mn 2.00 |
| HT |
330 (15-35) |
0.35-0.75 |
15.0-19.0 |
33.0-37.0 |
0.05 |
1 |
BAL |
--- |
Mn 2.00 |
| HU |
(19-39) |
0.35-0.75 |
17.0-21.0 |
37.0-41.0 |
0.5 |
1 |
BAL |
--- |
Mn 2.00 |
| WCA |
Carbon Steel |
0.25 |
0.5 |
0.5 |
0.2 |
0.3 |
BAL |
--- |
Si 0.60 |
| WCB |
Carbon Steel |
0.3 |
0.5 |
0.5 |
0.2 |
0.3 |
BAL |
--- |
Si 0.60 |
| WCC |
Carbon Steel |
0.25 |
0.5 |
0.5 |
0.2 |
0.3 |
BAL |
--- |
Si 0.60 |
| LCB |
Carbon Steel |
0.3 |
0.5 |
0.5 |
0.2 |
0.3 |
BAL |
--- |
Si 0.60 |
| LCC |
Carbon Steel |
0.25 |
0.5 |
0.5 |
0.2 |
0.3 |
BAL |
--- |
Si 0.60 |
| 415-205 |
Carbon Steel |
0.25 |
--- |
--- |
--- |
--- |
--- |
--- |
Si 0.2-0.60 |
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Mn 0.4-1.0 |
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413 |
0.20 |
15.5-20 |
1.5-3 |
--- |
--- |
--- |
--- |
Si 0.60 |
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Mn 0.2-1.0 |
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| 1. "STANDARD SPECIFICATION". Standard Specification alloys have chemistries, mechanical properties or corrosion properties that may be different than the cast alloy. Standard Specfication are given as a reference for commonly accepted equivalent materials. |
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| CAST ALLOY |
STANDARD SPECIFICATION |
Tensile |
Yield |
Elong |
| AISI |
ASTM |
UNS No. |
DIN (w-Nr) |
JIS |
| CA15 |
410 |
ASTM-A217,A743 |
J91150 |
G-X10Cr13 |
SCS1 |
90,000 |
65,000 |
18.00% |
| CB7Cu-1 |
17-4 PH |
ASTM-A747 |
J92180 |
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135,000 |
110,000 |
9.00% |
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AMS-5398C |
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H1100 Condition |
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| CF3 |
304L |
ASTM-A351 |
J92500 |
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70,000 |
30,000 |
35.00% |
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A743, A744 |
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| CF3M |
316L |
ASTM-A351 |
J92800 |
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70,000 |
30,000 |
30.00% |
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A743, A744 |
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| CF8 |
304 |
ASTM-A351 |
J92600 |
1.4308 |
SCS13 |
70,000 |
30,000 |
35.00% |
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A743, A744 |
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| CF8C |
347 |
ASTM-A351 |
J92710 |
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70,000 |
30,000 |
30.00% |
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A743, A744 |
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| CF8M |
316 |
ASTM-A351 |
J92900 |
1.4408 |
SCS14A |
70,000 |
30,000 |
30.00% |
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A743, A744 |
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| CG3M |
317L |
ASTM-A351 |
--- |
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75,000 |
35,000 |
25.00% |
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A743 , A744 |
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| CG8M |
317 |
ASTM-A351 |
J93000 |
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75,000 |
35,000 |
25.00% |
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A743 , A744 |
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| CN7M |
Alloy 20 |
ASTM-A351 |
N08007 |
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62,000 |
25,000 |
35.00% |
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A743, A744 |
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| 954 |
Aluminum-Bronze |
ASTM-B148 |
C95400 |
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75,000 |
30,000 |
12.00% |
| 955 |
Aluminum-Bronze |
ASTM-B148 |
C95500 |
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90,000 |
40,000 |
6.00% |
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| HH |
ASTM-A297 |
ASTM-A297 |
J93503 |
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75,000 |
35,000 |
10.00% |
| HK |
ASTM-A297 |
ASTM-A297 |
J94224 |
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65,000 |
35,000 |
10.00% |
| HN |
HI-35 |
ASTM-A297 |
J94213 |
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63,000 |
--- |
8.00% |
| HT |
330 (15-35) |
ASTM-A297 |
N08605 |
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65,000 |
--- |
4.00% |
| HU |
(19-39) |
ASTM-A297 |
N08004 |
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65,000 |
--- |
4.00% |
| WCA |
Carbon Steel |
ASTM-A216 |
J02502 |
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60-85,000 |
30,000 |
24.00% |
| WCB |
Carbon Steel |
ASTM-A216 |
J03002 |
1.0446 |
SC450 |
70-95,000 |
36,000 |
22.00% |
| WCC |
Carbon Steel |
ASTM-A216 |
JO2503 |
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70-95,000 |
40,000 |
22.00% |
| LCB |
Carbon Steel |
ASTM-A352 |
J03003 |
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65,000 |
35,000 |
24.00% |
| LCC |
Carbon Steel |
ASTM-A352 |
J02505 |
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70,000 |
40,000 |
22.00% |
| 415-205 |
Carbon Steel |
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1.0416 |
SC410 |
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431 |
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1.4507 |
SUS431 |
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Investment Casting Tolerance
Investment casting ( ‘ lost wax ' ) tolerances are specified by the international standard: VDG P690. As a general rule normal linear tolerance on an investment casting can be + 0,75% of the nominal dimension, with a minimum of + 0,10 mm for dimensions lower than 15 mm in order to achieve closer tolerances, a machining allowance is required, but never forget that an investment casting always permits to reach very complex geometries.
As a good rule severe tolerances are to be avoided if not necessary to allow the higher production yelds and lower piece costs.
Therefore, functional or closer dimensions must be pointed out in the drawings and dealed with the technical department. The tolerances in the tables below can be used as an indication, depending on the steel alloy used and the product geometry.
Linear Tolerance: |
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METRIC - Millimeters |
Tolerance class |
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Range |
D1 |
D2 |
D3 |
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0 to 6 |
±0,10 |
±0,08 |
±0,06
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6 to 10 |
±0,12 |
±0,10 |
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10 to 14 |
±0,15 |
±0,12 |
±0,09
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14 to 18 |
±0,20 |
±0,14 |
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18 to 24 |
±0,25 |
±0,17 |
±0,12 |
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24 to 30 |
±0,30 |
±0,20 |
±0,14 |
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30 to 40 |
±0,37 |
±0,25 |
±0,17 |
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40 to 50 |
±0,44 |
±0,30 |
±0,20 |
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50 to 65 |
±0,52 |
±0,38 |
±0,23 |
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65 to 80 |
±0,60 |
±0,46 |
±0,27 |
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80 to 100 |
±0,68 |
±0,53 |
±0,30 |
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100 to 120 |
±0,76 |
±0,60 |
±0,33 |
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120 to 140 |
±0,84 |
±0,65 |
±0,36 |
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140 to 160 |
±0,92 |
±0.72 |
±0.38 |
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160 to 180 |
±1,02 |
±0.80 |
±0.42 |
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180 to 200 |
±1.12 |
±0.88 |
±0.43 |
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200 to 225 |
±1.28 |
±0.95 |
±0.47 |
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225 to 250 |
±1.44 |
±1.05 |
±0.51 |
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250 to 280 |
±1.64 |
±1.15 |
±0.56 |
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280 to 315 |
±1.84 |
±1.25 |
±0.63 |
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315 to 355 |
±2.10 |
±1.40 |
±0.71 |
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355 to 400 |
±2.40 |
±1.60 |
±0.80 |
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400 to 450 |
±2.70 |
±1.80 |
±0.90 |
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450 to 500 |
±3,10 |
±2.00 |
±1.00 |
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Linear Tolerances |
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| Tolerance for straightness, flatness and parallelism |
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METRIC - Millimeters |
Tolerance class |
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Lengths |
D1 |
D2 |
D3 |
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to 25 mm |
0,15 mm |
0.10 mm |
0.10 mm |
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25 to 50 mm |
0.25 mm |
0.20 mm |
0.15 mm |
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above 50 mm |
0.60 % |
0.40 % |
0.30 % |
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Straightness, flatness and parallelism |
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Dimensions for holes and channels
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Dia. resp.
□ |
Greatest length, depth repectively |
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d (mm) |
continuous |
blind |
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~ 1 x d |
~ 0.6 x d |
＞ 4 to 6 |
~ 2 x d |
~ 1.0 x d |
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~ 3 x d |
~ 1.6 x d |
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~ 4 x d |
~ 2.0 x d |
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holes and channels |
| Geometrical tolerance |
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Properties |
METRIC - Millimeters |
Symbol |
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±0.10 per 20mm |
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±0.10 per 20mm |
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±0.15 per 20mm |
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±0.10 per 20mm |
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±30' |
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Position accuracy |
±0.10 per 20mm |
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±0.10 per 20mm |
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±0.15 per 20mm |
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±0.10 per 20mm |
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Geometrical |
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| Surface quality |
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Degree
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Roughness values |
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Ra (μm) |
Rz (μm) |
CLA(μm) |
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1.6 |
6 - 8 |
63 |
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3.2 |
12 - 16 |
125 |
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6.3 |
23 - 32 |
250 |
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Surface quality |
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| Machining allowances |
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Opertation |
METRIC - Millimeters |
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For grinding |
0.1 to 0.3 mm
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0.1 to 0.3 mm |
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| Liner tolerance for Soluble glass process investment Casting avalible in optional; |
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Degree
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Roughness values |
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CT-5 |
CT-6 |
CT-7 |
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0.52 |
0.74 |
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0.54 |
0.78 |
| 16-25 |
0.42 |
0.58 |
0.82 |
| 25-40 |
0.46 |
0.64 |
0.90 |
| 40-63 |
0.50 |
0.70 |
1.00 |
| 63-100 |
0.56 |
0.78 |
1.10 |
| 100-160 |
0.62 |
0.88 |
1.20 |
| 160-250 |
0.70 |
1.00 |
1.40 |
| 250-400 |
0.78 |
1.10 |
1.60 |
| 400-630 |
0.90 |
1.20 |
1.80 |
| 630-1000 |
1.00 |
1.40 |
2.00 |
| 1000-1600 |
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1.60 |
2.20 |
| 1600-2500 |
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2.60 |
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| No rights can be obtained from above values. |
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