11MnNi5-3 is a nickel alloy steel with low temperature performance, and 11MnNi5-3 is a nickel alloy steel plate for pressure equipment.
Nickel alloy steel 11MnNi5-3 heat treatment / delivery state:
11MnNi5-3 steel plate is usually delivered in normalized, normalized + tempered state.
11MnNi5-3 steel executive standard EN 10028-4.
11MnNi5-3 alloy steel flaw detection level: first-level flaw detection, second-level flaw detection, third-level flaw detection.
Analysis of chemical element composition of nickel alloy steel 11MnNi5-3:
| C | Si | Mn | P | S | Ni | Nb | V | Alt |
| ≤0.14 | ≤0.5 | 0.7-1.5 | ≤0.025 | ≤0.010 | 0.3-0.8 | ≤0.05 | ≤0.05 | ≥0.02 |
Composition Note: Cr+Cu+Mo≤0.5.
Mechanical properties of 11MnNi5-3 steel:
| Thickness | Mechanical properties | ||
| ≤30mm | ReH(MPa) | ≥285 | |
| Rm(MPa) | 420-530 | ||
| A(%) | ≥24 | ||
| Impact temperature | -60 | ||
| Akv(J) | ≥40 | Longitudinal | |
| Delivery Status | Normalized, normalized + tempered | ||
| >30-50mm | ReH(MPa) | ≥275 | |
| Rm(MPa) | 420-530 | ||
| A(%) | ≥24 | ||
| Impact temperature | -60 | ||
| Akv(J) | ≥40 | Longitudinal | |
| Delivery Status | Normalized, normalized + tempered | ||
| >50-80mm | ReH(MPa) | ≥265 | |
| Rm(MPa) | 420-530 | ||
| A(%) | ≥24 | ||
| Impact temperature | -60 | ||
| Akv(J) | ≥40 | Longitudinal | |
| Delivery Status | Normalized, normalized + tempered | ||
11MnNi5-3 nickel alloy steel impact energy value:
| Grade | Thickness | Impact power value (KV /J) at the following test temperatures | ||||||||||||
| Direction | 20 | 0 | -20 | -40 | -50 | -60 | -80 | -100 | -120 | -150 | -170 | -196 | ||
| 11MnNi5-3 | ≤80mm | Longitudinal | 70 | 60 | 55 | 50 | 45 | 40 | - | - | - | - | - | - |
| Horizontal | 50 | 50 | 45 | 35 | 30 | 27 | - | - | - | - | - | - | ||
11MnNi5-3 steel technical standard:
The size, shape and allowable deviation of the 11MnNi5-3 steel plate shall meet the requirements of 2007+A1:2009 in EN10028-1.
Nickel alloy steel 11MnNi5-3 process flow:
Converter/electric furnace steelmaking—LF furnace refining→VD furnace vacuum degassing—continuous casting/die casting/electroslag—cleaning and heating—rolling—flaw detection—heat treatment—steel plate finishing—sampling—performance inspection.
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