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Crucible Steel CPM® S35VN™ Stainless Steel

Category Metal , Ferrous Metal , Martensitic , Stainless Steel
Manufacturer Crucible Steel
Trade Name CPM®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel CPM® S35VN™ Stainless Steel.pdf
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Material Notes:
CPM S35VN is a martensitic stainless steel designed to offer improved toughness over CPM S30V. It is also easier to machine and polish than CPM S30V. Its chemistry has been rebalanced so that it forms some niobium carbides along with vanadium and chromium carbides. Substituting niobium carbides for some of the vanadium carbides makes CPM S35VN about 15-20% tougher than CPM S30V without any loss of wear resistance. CPM S35VN’s improved toughness gives it better resistance to edge chipping. Because both vanadium and niobium carbides are harder and more effective than chromium carbides in providing wear resistance, the CPM stainless blade steels offer improved edge retention over conventional high chromium steels such as 440C and D2.The CPM process produces very homogeneous, high quality steel characterized by superior dimensional stability, grindability, and toughness compared to steels produced by conventional melting practices.Information provided by Crucible Industries
Physical Properties Metric English Comments
Density 7.47 g/cc
0.270 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C >= 56.5
>= 56.5
austenitizied at 1900°F, tempered at 1000°F + freeze
60.5
60.5
austenitizied at 1900°F then quenched
<= 64
<= 64
austenitizied at 2000°F, oil quenched + freeze
57

@Tempering Temp. 538 °C
57

@Tempering Temp. 1000 °F
austenitizied at 1900°F then quenched and tempered
57.5

@Tempering Temp. 204 °C
57.5

@Tempering Temp. 400 °F
austenitizied at 1900°F then quenched and tempered
57.5

@Tempering Temp. 316 °C
57.5

@Tempering Temp. 600 °F
austenitizied at 1900°F then quenched and tempered
Modulus of Elasticity 221 GPa
32100 ksi
Charpy Impact 16.3 J
12.0 ft-lb
Transverse C-notch
Thermal Properties Metric English Comments
CTE, linear 11.0 µm/m-°C

@Temperature 20.0 - 200 °C
6.11 µin/in-°F

@Temperature 68.0 - 392 °F
11.5 µm/m-°C

@Temperature 20.0 - 315 °C
6.39 µin/in-°F

@Temperature 68.0 - 599 °F
Thermal Conductivity 17.31 W/m-K

@Temperature 93.0 °C
120.1 BTU-in/hr-ft²-°F

@Temperature 199 °F
Component Elements Properties Metric English Comments
Carbon, C 1.4 %
1.4 %
Chromium, Cr 14 %
14 %
Iron, Fe 79.1 %
79.1 %
as balance
Molybdenum, Mo 2.0 %
2.0 %
Niobium, Nb (Columbium, Cb) 0.50 %
0.50 %
Vanadium, V 3.0 %
3.0 %
Descriptive Properties Value Comments
Edge Retention 1.45
CATRA Testing Relative to 440C
Pitting Resistance 250 mV
polarization curves in 5% NaCl
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