| |
| Basic
Properties - Mechanical Properties |
| 0.2% Proof
Stress (N/mm2 ) [ksi] minimum |
450 [65.3] |
| Ultimate Tensile Strength
(N/mm2) [ksi] minimum |
700 [101.5] |
| Elongation (%) minimum |
25 |
| Hardness (HBN) |
270max |
| Charpy V-notch Impact at ambient Temp (J) [ft.lb] |
70min [51.6min] |
| ASTM G48A Corrosion test at 40°C |
No pitting and weight loss <4.0g/m2 |
| Ferrite Content |
40%-60% |
| Microstructure |
Microstructure certified free from grain boundary
carbides, sigma, chi and laves phases |
| |
|
 |
Excellent corrosion resistance in a wide variety
of corrosive chemicals including sulphuric, phosphoric and
nitric acids, seawater and industrial acids |
| |
|
|
Outstanding resistance to pitting and crevice corrosion
in seawater and other chloride containing environments, with
Critical Pitting Temperature exceeding 40°C |
| |
|
|
High strength compared to austenitic and 22% chrome duplex
stainless steels |
| |
|
|
High ductility and impact strength |
| |
|
|
High resistance to abrasion, erosion and cavitation
erosion |
| |
|
|
Excellent resistance to stress corrosion cracking
in chloride containing environments |
| |
|
|
Applicable for sour service operation |
| |
|
|
High structural integrity, optimised phase balance and the
absence of sigma and other deleterious phases. |
| |
|
| Elements |
C |
Cr |
Cu |
Fe |
Mo |
Mn |
N |
Ni |
P |
S |
Si |
| Minimum |
|
24.0 |
1.00 |
REMAINDER |
2.7 |
|
0.14 |
5.50 |
|
|
|
| Maximum |
0.03 |
26.00 |
2.00 |
|
3.90 |
2.00 |
0.25 |
7.50 |
0.035 |
0.010 |
0.75 |
| Density (Kg.m-1) |
78.1 |
| Magnetic Permeability |
33 |
| Young’s Modulus (N/mm2) |
199 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) |
475 |
| Specific Electrical Resistance, 20°C (µΩ.m) |
0.80 |
| Thermal conductivity, 20°C (W.m-1.°K-1) |
14.2 |
| Mean coefficient of thermal expansion,
20-100°C (°K-1) |
11.1 x 10-6 |
| |
|
|
FERRALIUM to MSA-MDS-41VS-Castings |
| |
|
|
ASTM A890 Grade 1C, UNS J93373, ACI CD3MCuN |
| |
|
| |
| Chemical Process Industry: |
| Sulphuric Acid Production, Nitric Acid Processes, Polypropylene
Production, PVC Production, Titanium Dioxide Production, Caustic
Evaporators, Equipment Handling Organic and Fatty Acids |
| |
 |
| |
| Marine Industry and Shipbuilding: |
| Propellers, Rudders, Shaft Seals, Pumps, Valves, Instrumentation |
| |
|
| |
| Oil and Gas Industry: |
| Pumps, Valves, Pipe, Wellhead Equipment, Subsea Equipment |
| |
|
| |
| Pollution Control: |
| Pumps, Wet Scrubbers, Incinerators |
| |
|
| |
| Copper Smelting: |
| Wet Scrubbers, Leaching Area Precipitators |
| |
|
| |
| Pulp and Paper Industry: |
| Digester Blow Valves, Rotary Feed Valves, Brownstock Washers |
| |
|
| |
| Food Industry: |
| Sugar Cane Centrifuges, Corn and Vegetable processing plant |
| |
|
| |
| Agrochemicals: |
| Fertiliser Production (Wet phosphoric acid) |
| |
| Operation |
Cutting Speed m/min
(ft/min) |
Feed Rate
mm/rev
(in/rev) |
Depth of cut mm
(in) |
| Milling |
40 (130) |
0.05-0.13 mm/tooth
0.02-0.005 in/tooth |
0.5-6.0
(0.02-0.25) |
| Drilling – 6.4mm (1/4”) dia |
250rpm |
0.075 (0.003) |
|
| Drilling – 12.7mm (1/2”) dia |
250rpm |
0.125 (0.005) |
|
| Drilling – 25.4mm (1”) dia |
150rpm |
0.28 (0.011) |
|
| Turning - Roughing |
30-45 (100-150) |
0.20 – 0.38 (0.008-0.015) |
3 (0.125) |
| Turning - Finishing |
50-60 (165-200) |
0.13 – 0.20 (0.005-0.008) |
0.5 (0.02) |
| Tooling |
Milling/Turning: Carbide (SANDVIK
GC 235, SECO T25M) Drilling: HSS, point angle 118°, chisel
angle 120° |
| Alloy Comparisons |
CF8M(316) |
J92205 |
M-35-2(70/30
Ni/Cu) |
S31254 |
FERRALIUM
255-3SC |
| 0.2% Proof Strength (N/mm2) |
290 |
440 |
205 |
325 |
500 |
| Corrosion Rate
(mm.y-1) Seawater |
~1 |
<0.01 |
<0.01 |
<0.01 |
<0.01 |
Corrosion Rate (mm.y-1)
10% sulphuric acid at 80°C |
10 |
0.4 |
<0.15 |
1.5 |
<0.15 |
Corrosion Rate (mm.y-1)
Boiling 50% nitric acid |
<0.15 |
<0.15 |
<0.15 |
0.4 |
<0.15 |
| Wear Properties related to Hardness (HBN) |
RB86 |
RC25 |
RC20 |
RC20 |
RC28 |
|
| Back
to Top |
| |
Disclaimer
Data in this publication is provided solely for the purposes of distribution
of information. Langley Alloys cannot make guarantees with respect to subject
matter or accuracy of this information. Langley Alloys specifically disclaims
all guarantees, expressed, implied or otherwise, including without limitation,
all warranties of merchantability and fitness for a particular purpose. This
publication may include technical inaccuracies or typographical errors. If
errors are found, please make a notification via e-mail to: info@langleyalloys.com |
|
