Steel 03Х18Н16М3 (ЗИ133)
Designation
Name |
The value |
Designation GOST Cyrillic |
03Х18Н16М3 |
Designation GOST Latin |
03X18H16M3 |
Transliteration |
03H18N16M3 |
The chemical elements |
03Cr18Н16Mo3 |
Name |
The value |
Designation GOST Cyrillic |
ЗИ133 |
Designation GOST Latin |
ZI133 |
Transliteration |
ZI133 |
The chemical elements |
ЗИ133 |
Description
03Х18Н16М3 steel is used: for the manufacture of surgical implants bone fractures: plates, bone screws, nails, pins, knitting needles skeletal tension.
Note
Romancelatina steel corrosion resistant austenitic class.
Standards
Name |
Code |
Standards |
Sectional and shaped rolling |
В32 |
GOST 14955-77, GOST Р 51394-99, GOST 31622-2012, TU 14-1-4708-89 |
Sheets and stripes |
В23 |
GOST 19904-90 |
Sheets and stripes |
В33 |
TU 14-1-4383-87, TU 14-123-134-95 |
Bulls. Blanks. Slabs |
В31 |
TU 14-1-4913-90 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Mo |
GOST 31622-2012 |
≤0.03 |
≤0.01 |
≤0.025 |
≤2 |
17-18.5 |
≤0.4 |
14.5-16.5 |
The rest |
≤0.3 |
≤0.1 |
2.6-3.1 |
Fe is the basis.
According to GOST R 51394-99, GOST 31622-2012 the chemical composition is given for steel grade 03H18N16M3 (ZI133). Mass fractions of chromium and molybdenum in steel should satisfy the condition: 3% Mo +% Cr ≥26. Magnesium (not more than 0.030%) and aluminum (no more than 0.25%) as technological additives are introduced into the metal by calculation and chemical analysis is not determined. Deviation by mass fraction of silicon plus 0.40% is allowed. Permissible deviations of the chemical composition of finished rolled products are in accordance with GOST 5632.
According to TU 14-123-134-95 the chemical composition is given for steel grade 03H18N16M3-VD (ZI133-VD).
Mechanical characteristics
Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
The mechanical properties of the rolled state of delivery according to GOST 31622-2012 |
0.8-3.9 |
≥190 |
490-690 |
≥40 |
4-6 |
≥690 |
860-1100 |
≥12 |
4-6 |
≥190 |
490-690 |
≥40 |
The mechanical properties of the rolled delivery condition according to GOST R 51394-99 |
3-3.9 |
≥190 |
490-690 |
≥40 |
0.8-3 |
≥190 |
490-690 |
≥38 |
4-6 |
≥690 |
860-1100 |
≥12 |
4-6 |
≥190 |
490-690 |
≥40 |
Description mechanical marks
Name |
Description |
Section |
Section |
sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
σB |
Limit short-term strength |
d5 |
Elongation after rupture |
Technological properties
Name |
The value |
Macrostructure and contamination |
The macrostructure of a rental must not have residues of shrinkage, delamination, foreign metal and non-metallic inclusions, cracks and bubbles that are visible without using the magnifying devices. The sections of the sheets should be free of cracks, splits and delamination. Pollution steel non-metallic inclusions shall not exceed sulphides, aluminates, silicates and globular oxides 1,5 points for each parameter for thin series and score 1.0 - for thick series. |
Microstructure |
In the microstructure of steel long products should not be ferritic phase. The content of ferritic phase in the microstructure of steel sheet metal should not exceed the point 1. Austenitic grain should not be larger than 4-th number. |
Corrosion resistance |
Rental in the state of delivery must be resistant to intergranular corrosion. |