15F steel
2021-11-18
15F steel
15F steel is a structural steel in China (GB / T 699).
15F steel Characteristics and Applications
After 15F steel heat treatment or water toughness treatment, the hardness, toughness, weldability of the steel is good, and hardenability and hardenability are reduced.
Uses: 15F steel is used for small and medium structural parts with low stress, high toughness requirements or good welding performance, as well as carburized parts, mechanical tightness and firmness, die forgings and low load parts that do not require heat treatment, such as bolt , Screws, flanges and receptacles for chemical machinery, steam boilers, etc.
15F steel Chemical Properties
|
Standard |
Grade |
Chemical Properties |
|
C(％) |
Si(％) |
Mn(％) |
P(％) |
S(％) |
Cr(％) |
Ni(％) |
Cu(%) |
|
GB/T 699 |
15F |
0.12-0.19 |
≤ 0.07 |
0.25-0.50 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
≤0.25 |
15F steel Mechanical Properties
|
Standard |
Grade |
Mechanical Properties |
Strength of extension
(MPa) |
Yield strength
(MPa) |
Elongation
% |
Percentage reduction of area % |
Hardness HBS10/3000 |
|
GB/T 699 |
15F |
≥355 |
≥205 |
≥29 |
≥55 |
Untempered steel |
Annealed steel |
|
≤143 |
/ |
15F Steel Heat Treatment
Normalizing, normalizing heat treatment temperature: 920 ℃, holding time ≤30min, air cooling;
10F Steel Equivalent Grade
|
Grade |
Country |
|
15F |
China |
|
NiCr15Fe7TiAI |
France |
|
NC15Fe7TA |
France |
|
ISO NiCr15Fe8 |
ISO |
|
ISO NiCr15Fe7TiAl |
ISO |
|
EN NiCr15Fe8 |
Euronorm |
|
EN NiCr15Fe7Ti2Al |
Euronorm |
|
EN NiCr15Fe7TiAl |
Euronorm |
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