Description
| Stainless Steel – SUS403, UNS S40300, 1.4024 |
| Chemical Formula |
| Fe, <0.15% C, 11.5-13.5% Cr, >0.75% Ni, <1.0% Mn, <0.5% Si, <0.04% P, <0.03% S |
SS403 is the basic martensitic stainless steel; like most non-stainless steels it can be hardened by a “quench-and-temper” heat treatment. It contains a minimum of 11.5 per cent chromium, just sufficient to give corrosion resistance properties. It achieves maximum corrosion resistance when it has been hardened and tempered and then polished. SUS403 is a general purpose grade often supplied in the hardened, but still machinable condition, for applications where high strength and moderate heat and corrosion resistance are required.
| AISI Type 403 |
| Type | Martensitic Stainless Steel | ||
| Designations | France: AFNOR Z 12 C 13M Germany: DIN 1.4024 Japan: JIS SUS 403 , JIS SUS 416 United Kingdom: B.S. 420 S 29 , B.S. En. 56 B United States: AMS 5611 , AMS 5612 , ASTM A176 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A479 , ASTM A511 , ASTM A580 , FED QQ-S-763 , MIL SPEC MIL-S-862 , SAE 51403 , SAE J405 (51403) , UNS S40300 |
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| Composition | |||
| Element | Weight % |
| C | 0.15 |
| Mn | 1.00 |
| Si | 0.50 |
| Cr | 11.5-13.0 |
| P | 0.04 |
| S | 0.03 |
Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength | 485 MPa | 70300 psi |
| Yield strength (@strain 0.200 %) | 310 MPa | 45000 psi |
| Fatigue Strength (annealed, @diameter 25mm/0.984 in) | 275 MPa | 39900 psi |
| Shear modulus (typical for steel) | 76.0 GPa | 11000 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 25.00% | 25.00% |
| Izod impact (tempered) | 102 J | 75.2 ft-lb |
| Hardness, Brinell (converted from Rockwell B hardness) | 139 | 139 |
| Hardness, Knoop (converted from Rockwell B hardness) | 155 | 155 |
| Hardness, Rockwell B | 80 | 80 |
| Hardness, Vickers (converted from Rockwell B hardness) | 153 | 153 |
Corrosion Resistance
SUS403 resists dry atmosphere, fresh water, mild alkalies and acids, food, steam and hot gases. Must be hardened for maximum heat and corrosion resistance. Performance is best with a smooth surface finish. Less corrosion resistant than the austenitic grades and also less than 17% chromium ferritic alloys such as SUS430.
| Applications
Typical applications include: · Bolts & Nults · Screws · Bushings · Pump and valve parts and shafts · Steam and gas turbine parts · Petroleum fractionating towers · Mine ladder rungs |
Our Sales & Supplier Network
Australia, Pakistan, Malaysia, Singapore, Taiwan, China,Vietnam, Belgium, Japan, South Korea, Philippines, France, United Kingdom, Indonesia, Thailand, Hong Kong, China, Sweden, United States, Dubai, Finland, Brunei,Germany.
We are Indonesia Stainless Steel supplier with full range of Stainless Steel sheets, stainless steel round bar , stainless steel rod, stainless steel plate, 300 Series stainless steel , 400 series stainless steel , 253ma, sus301, sus304, sus304l, sus309, sus310, sus316ti, sus317, sus321, sus403 , sus410 , sus420 , sus430, sus431 , sus440c , sus630 , sus904L, s31803 , s32750 , s32760, s31254, s320j4l, Nitronic30, Nitronic50 , Nictronic60
