Date Published:May. 10. 2016
Property of Special Material Screws
Property of Special Material Screws
Mechanical property
Property |
Inconel* (NCF600) SNSI |
Pure molybdenum SNSM SNFCM |
Hastelloy**C-276 (NW0276) SNSH-C276 |
Hastelloy**C-22 (NW6022) SNSH-C22 |
Monel 400 equiv (UNS N0400) SNSMN |
Nickel (NW2201) SNSN |
Super Invar SNSIV |
Phosphor bronze (C5191) SNSP |
Aluminum Alloy (A5056) SNSA |
---|---|---|---|---|---|---|---|---|---|
Tensile strength (N/mm2) |
548 - 695 | 515 | 793 | 786 | 517 - 620 | 343 - 411 | 470 | 590以上 | 294 |
0.2% durability (N/mm2) |
205 - 352 | 380 | 400 | 365 | 172 - 345 | 68 - 166 | 333 | - | 245 |
Extension (%) | 35 - 55 | 15 | 60 | 57 | 35 - 60 | 40 - 60 | 43 | 8 | 12 |
Hardness |
65 - 85(HRB) | - | - | 92(HRB) | 60 - 80(HRB) | 75 - 100(HB) | 143(HV) | - | 98(HB) |
Values in chart are for reference only. They are not guaranteed values.
Physical property
Property |
Inconel* (NCF600) SNSI |
Pure molybdenum SNSM SNFCM |
Hastelloy*C-276 (NW0276) SNSH-C276 |
Hastelloy*C-22 (NW6022) SNSH-C22 |
Monel 400 equiv (UNS N0400) SNSMN |
Nickel (NW2201) SNSN |
Super Invar SNSIV |
Phosphor bronze (C5191) SNSP |
Aluminum Alloy (A5056) SNSA |
---|---|---|---|---|---|---|---|---|---|
Specific gravity |
8.42 | 10.2 | 8.89 | 8.61 | 8.80 | 8.89 | 8.15 | 8.83 | 2.64 |
Longitudinal elastic modulus (GPa) |
207 | 327 | 205 | 209 | 179 | 206 | 132 | 105 | 71.7 |
Heat thermal conductivity (W/(m・K) |
16.7 | 142 | - | - | 22 | 79.5 | 10.47 | 67 | 112 |
Linear expansion coefficient (K-1) |
13.4×10-6 | 5.1×10-6 | 11.2×10-6 | 12.4×10-6 | 14.2×10-6(100℃) | 13.4×10-6 | 0.69×10-6 | 18×10-6 | 24.1×10-6 |
Electric resistivity (μΩ・m) |
1.0 | 0.058 | 1.3 | 1.2 | 0.5 | 0.085 | 0.77 | 0.13 | 0.064 |
Values in chart are for reference only. They are not guaranteed values.
Chemical resistance of Inconel*, Hastelloy** and nickel screws
Chemical name |
Temperature |
Inconel* | Hastelloy** | Nickel |
---|---|---|---|---|
Dilute sulfuric acid |
Room temperature |
A | AA | A |
Boiling point |
D | A | D | |
Concentrated sulfuric acid |
Room temperature |
C | AA | C |
Boiling point |
D | D | D | |
Dilute hydrochloric acid |
Room temperature |
B | AA | A |
Boiling point |
D | D | D | |
Concentrated hydrochloric acid |
Room temperature |
D | AA | D |
Boiling point |
D | B | D | |
Dilute nitric acid |
Room temperature |
D | AA | D |
Boiling point |
- | AA | D | |
Concentrated nitric acid |
Room temperature |
A | AA | D |
Boiling point |
- | D | D | |
Dilute phosphoric acid |
Room temperature |
AA | AA | AA |
Boiling point |
- | AA | D | |
Concentrated phosphoric acid |
Room temperature |
AA | AA | AA |
Boiling point |
- | B | D | |
Sodium hydroxide(weak) | Room temperature |
AA | - | AA |
Boiling point |
C | - | AA | |
Sodium hydroxide(concentrated) | Room temperature |
AA | - | AA |
Boiling point |
C | - | AA |
- AA :Highly Excellent
- A :Very Good
- B :Satisfactory
- C :Limit
- D :Not satisfactory
* Inconel is a registered trademark of Special Metals Corporation.
** Hastelloy is a registered trademark of Haynes.
Chemical resistance of ceramic screws
Chemical name |
Temperature |
Time | Effect |
---|---|---|---|
35% hydrochloric acid | Boiling |
30 minutes | ◎ |
70% nitric acid | Boiling |
30 minutes | ◎ |
98% sulfuric acid | Boiling |
30 minutes | ◎ |
90% phosphoric acid | Boiling |
30 minutes | 〇 |
60% hydrofluoric acid | 20℃ | 24 hours | △ |
10% potassium hydroxide |
80℃ | 7 days | ◎ |
Potassium hydroxide |
500℃ (boiling) | 24 hours |
△ |
Sodium hydroxide |
500℃ (boiling) | 24 hours |
〇 |
Sodium carbonate |
900℃ (boiling) | 24 hours |
〇 |
Sodium sulfate |
1000℃ (boiling) | 24 hours |
◎ |
Potassium fluoride |
90℃ (boiling) | 4 hours |
× |
- ◎:No erosion confirmed
- 〇:Minor erosion
- △:Medium erosion
- ×:Major erosion
- A test piece was used to acquire the test data.
- Chemical resistance changes with performance conditions.
Always carry out tests under performance conditions similar to actual conditions in advance.
Magnetic flux density of phosphor bronze screw
Phosphor bronze |
SUSXM7(Equivalent to SUS304) | |
---|---|---|
Magnetic flux density(T) |
0 | 5×10-5 |
Measurement device : F.W.BELL 5080 type gauss (tesla) meter
Measurement condition : DC magnetic field measurement mode Distance between probe and sample 5 mm
Technical Data
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Technical Data
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