What is the equivalent material for 1.4301 stainless steel?
1.4301 stainless steel is equivalent to AISI 304 (also known as UNS S30400). According to European standards, it is also known as X5CrNi18-10. Due to its nominal composition of 18% chromium and 8% nickel, it is sometimes also referred to by its older name, 18/8.
What is the ASTM equivalent of 1.4401 stainless steel?
EN 1.4401 stainless steel is equivalent to the American standard AISI 316. It is also known as grade 316 or UNS S31600. This austenitic stainless steel is characterized by its molybdenum content, which enhances its corrosion resistance, particularly in chloride environments.
(Per EN 10088-2 / ASTM A240 standards)
1.4301 (AISI 304): Primarily composed of chromium (18-20%) and nickel (8-10.5%)，1.4401 (AISI 316): Molybdenum (2-2.5%) is added.
|
Element |
1.4401 (316) |
1.4301 (304) |
|---|---|---|
|
Carbon (C) |
≤0.08 |
≤0.07 |
|
Chromium (Cr) |
16.0–18.5 |
17.5–19.5 |
|
Nickel (Ni) |
10.0–14.0 |
8.0–10.5 |
|
Molybdenum (Mo) |
2.0–3.0 |
None |
|
Manganese (Mn) |
≤2.0 |
≤2.0 |
|
Silicon (Si) |
≤1.0 |
≤1.0 |
|
Phosphorus (P) |
≤0.045 |
≤0.045 |
|
Sulfur (S) |
≤0.030 |
≤0.030 |
(Per EN 10088-2 / ASTM A240)
|
Property |
1.4401 (316) |
1.4301 (304) |
|---|---|---|
|
Tensile Strength (MPa) |
515–795 |
500–700 |
|
Yield Strength (0.2% Offset, MPa) |
205–515 |
205–500 |
|
Elongation (% in 50mm) |
≥40 |
≥40 |
|
Hardness (HRB) |
≤95 |
≤95 |
|
Density (g/cm³) |
8.0 |
8.0 |
|
Magnetic Response |
Generally non-magnetic (annealed), slightly magnetic (cold-worked) |
Non-magnetic (annealed), |
Corrosion Resistance:
1.4301 stainless steel performs well in a variety of environments, but its resistance to chlorides and acidic conditions is inferior to that of 1.4401. Due to the addition of molybdenum, 1.4401 stainless steel exhibits excellent corrosion resistance, especially in chloride-containing and acidic environments.
Machinability
1.4401 stainless steel contains 2-3% molybdenum and a slightly higher nickel content. Its strength and hardness are slightly higher than 1.4301. However, during high-speed cutting or heavy machining, 1.4401 exhibits slightly greater cutting resistance, requiring higher tool wear resistance.
Are 1.4301 and 1.4401 steels magnetic?
1.4301 (corresponding to 304 stainless steel) and 1.4401 (corresponding to 316 stainless steel) are both austenitic stainless steels and are generally non-magnetic or only very weakly magnetic in the annealed state.
What is the difference between 1.4401 and 316L?
AISI 316L differs from AISI 316 in its lower carbon content. The "L" stands for "low carbon" in this case. The materials 1.4401 and 1.4404, which belong to the V4A Group, are easy to machine and weld. With the addition of 2-2.5% molybdenum, both grades show good corrosion resistance even in the presence of chlorides.
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