PARMANU DHATU NIGAM
EN 1.4418 (X4CrNiMo16-5-1 ) Stainless Steel | AISI S165M | AFNOR Z6CND16-05-01 | SIS 2387
PARMANU DHATU NIGAM
THE PARMANU DHATU NIGAM INDIA’S LARGEST INDEPENDENT MULTI-METALS & ALLOYS STOCKHOLDER
PARMANU DHATU NIGAM - INDIA
M: +91-9820061193 | +91-9869542898 | +91-9820325078
Tel: +91-022-67437418
E-Mail: Parmanudhanig@gmail.com
Website: www.parmanudhatu.com | www.parmanudhatunigam.com
Country of Origin: Made in India
Manufacturer: Parmanu Dhatu Nigam
Manufacturer Brand: PARMANU
MATERIAL DESCRIPTION
S165M is a high strength low carbon martensitic/ austenitic stainless steel. It combines high strength, good fatigue resistance with good weldability, properties which are maintained after welding. S165M is designed for application in slightly corrosive environment. Two minimum tensile levels are often used; QT760 and QT900. QT900 is mostly used by the industry. Corrosion resistance is at the level of AISI 304L in most environments, however insensitive to intergranular corrosion.
Applications
The alloy has been designed to resist erosion corrosion or cavitation experienced in hydraulic applications. General areas for applications: Shafts, propellers, spindles, bolts, etc.
Heat Treatment
Austenitize and quench from 950 to 1050°C and immediate temper at 600°C for 8 hours followed by cooling in air.
Weldability
Good, the low carbon martensite with the finely dispersed residual austenite yields an excellent HAZ toughness in the as welded condition. Preheating to 100°C – 200°C is suggested for very thick section or when the stress concentration after cooling require it.
Chemical composition
| Weight % | C | Si | Mn | S | P | Cr | Ni | Mo | N |
| Min. | 0,30 | 0,60 | 0,005 | 15,00 | 4,00 | 0,80 | ≥ 0,020 | ||
| Max. | ≤ 0,06 | 0,70 | ≤ 1,50 | ≤ 0,030 | 0,040 | 17,00 | 6,00 | 1,50 |
Product Standards: ASTM A276, ASTM A479, EN10088-3
Mechanical properties
| Condition | Yield strength Rp0.2, MPa |
Tensile strength Rm, MPa |
Elongation [%] |
Hardness [HB] |
Impact, Charpy-V, -40ºC [J] |
| BAR QT900 | ≥ 700 | 900 – 1100 | ≥ 16 | 280 – 340 | ≥ 32 |
| Typical | 720 – 850 | 950 – 1050 | 18 | 300 | 100 |
Round bar stock – K12
| DIA | KG/M |
| 41 mm k12 finish | 10.6 |
| 46 mm k12 finish | 13.4 |
| 51,2 mm k12 finish | 16.5 |
| 56,4 mm k12 finish | 20. |
| 61,2 mm k12 finish | 22.8 |
| 66,2 mm k12 finish | 27.7 |
| 71,4 mm k12 finish | 31.5 |
| 81,4 mm k12 finish | 41. |
| 86,4 mm k12 finish | 47. |
| 91,4 mm k12 finish | 52.7 |
| 102 mm k12 finish | 65. |
| 107 mm k12 finish | 72.1 |
| 112 mm k12 finish | 79. |
| 115 mm k12 finish | 83.3 |
| 117 mm k12 finish | 86.3 |
| 122 mm k12 finish | 93.8 |
| 127 mm k12 finish | 101.6 |
| 132 mm k12 finish | 109.8 |
| 143 mm k12 finish | 128.8 |
| 153 mm k12 finish | 147.5 |
| 165 mm k12 finish | 171.5 |
| 173 mm k12 finish | 189 |
| 184 mm k12 finish | 213 |
| 190 mm k12 finish | 227 |
| 206 mm k12 finish | 267 |
| 226 mm k12 finish | 320 |
| 246 mm k12 finish | 382 |
| 256 mm k12 finish | 412 |
| 286 mm k12 finish | 515 |
| 306 mm k12 finish | 590 |
| 335 mm k12 finish | 707 |
| 360 mm k12 finish | 816 |
| 410 mm k12 finish | 1058 |
Round bar stock – Ground H9
| DIA | KG/M |
| 10 mm ground h9 | 0,630 |
| 12 mm ground h9 | 0.910 |
| 16 mm ground h9 | 1.600 |
| 20 mm ground h9 | 2.600 |
| 25 mm ground h9 | 3.900 |
| 30 mm ground h9 | 5.600 |
| 32 mm ground h9 | 6.500 |
| 35 mm ground h9 | 7.700 |
| 38 mm ground h9 | 8.900 |
| 40 mm ground h9 | 10.100 |
| 45 mm ground h9 | 12.490 |
| 50 mm ground h9 | 15.700 |
| 55 mm ground h9 | 18.700 |
| 60 mm ground h9 | 22.600 |
| 65 mm ground h9 | 26.000 |
| 70 mm ground h9 | 30.800 |
| 75 mm ground h9 | 35.500 |
| 80 mm ground h9 | 40.200 |
| 90 mm ground h9 | 50.900 |
| 100 mm ground h9 | 62.900 |
| 110 mm ground h9 | 75.000 |
| 120 mm ground h9 | 88.800 |
| 125 mm ground h9 | 96.300 |
| 140 mm ground h9 | 123.000 |
Equivalent standards
- EN 1.4418
- S165M
- 2387
- X4CrNiMo16-5-1
1.4418 Stainless Steel
All You Need to Know About Martensitic, Low Carbon Stainless Steel X4CrNiMo16-5-1, 1.4418, SIS2387
What is 1.4418 Stainless Steel Grade
The 1.4418-grade stainless steel is a low carbon martensitic stainless steel that offers good mechanical properties. Compared to many other martensitic stainless steels, the 1.4418 grade stainless steel has superior corrosion resistance. The stainless steel grade also demonstrates good weldability properties.
The 1.4418-grade stainless steel has the following properties:
- High strength
- High toughness
- High fatigue resistance
Why use 1.4418 Stainless Steel
Due to the corrosion resistance it shows, the 1.4418-grade stainless steel is suitable for use in slight to moderate corrosive media. It also shows high-abrasion corrosion resistance. This feature makes it a preferred choice for hydraulic and control system applications.
What is the chemical composition of 1.4418 stainless steel
The chemical composition of 1.4418 stainless steel is:
| 1.4418 steel chemical element | % present |
| Carbon (C) [Max] | 0.06% |
| Manganese (Mn) [Max] | 1.50% |
| Silicon (Si) [Max] | 0.70% |
| Chromium (Cr) [Max] | 15.0 to 17.0% |
| Nitrogen (N) | 0.20% |
| Molybdenum (Mo) [Max] | 0.80 to 1.50% |
| Nickel (Ni) [Max] | 4.0 to 6.0% |
| Phosphorus (P) [Max] | 0.040% |
| Sulphur (S) [Max] | 0.030% |
How to work with 1.4418 steel
| 1.4418 steel hot work and heat treatment temperature | ||
| Forging °C | Annealing °C | Welding °C |
| 1180 to 950 | 600 to 650 | 100 to 200 |
| Cooling in air | ||
1.4418 stainless steel applications
The main areas of applications of 1.4418 stainless steel include:
- Hydropower equipment
- Water turbine parts
- Shear pins
- Bolts
- Valves
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| Grade : | X4CrNiMo16-5-1 | ||||||||
| Number: | 1.4418 | ||||||||
| Classification: | Martensitic stainless steel | ||||||||
| Density: | 7.7 g/cm ³ | ||||||||
| Standard: |
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| Equivalent grades: | Go here |
Chemical composition % of steel X4CrNiMo16-5-1 (1.4418): EN 10088-2-2005
| Tighter carbon ranges may be agreed at the time of enquery and order Particular ranges of sulphur content may provide improvement of particular properties. For machinability a controlled sulphur content of 0.015 % to 0.030% is recommended and permitted. For weldability, a controlled sulphur content of 0.008 % to 0.030 % is recommended and permitted. For polishability, a controlled sulphur content of 0.015 % max is recommended. Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. |
| C | Si | Mn | Ni | P | S | Cr | Mo | N |
| max 0.06 | max 0.7 | max 1.5 | 4 - 6 | max 0.04 | max 0.015 | 15 - 17 | 0.8 - 1.5 | max 0.02 |
Mechanical properties of steel X4CrNiMo16-5-1 (1.4418)
| Rm - Tensile strength (MPa) (+QT) | 760-1100 |
| Rm - Tensile strength (MPa) (+A) | 1100 |
| Rp0.2 0.2% proof strength (MPa) (+QT) | 550-700 |
| KV - Impact energy (J) (+QT) | +20° 55-90 | -20° 40 |
| A - Min. elongation at fracture (%) longitud., (+QT) | 16 |
| A - Min. elongation at fracture (%) transverse, (+QT) | 14 |
| Brinell hardness (HB): (+A) | 320 |
Equivalent grades of steel X4CrNiMo16-5-1 (1.4418)Warning! Only for reference
| EU EN | France AFNOR | Sweden SS | ||
| X4CrNiMo16-5-1 |
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