Martensitic Stainless Steels| Corresponding Standards: | |
| EN/DIN | <1.4125> X105CrMo17 |
| AFNOR | Z100CD17 |
| UNI | X102CrMo17KU |
| AISU | 440C |
| UNS | S44004 |
| JIS | SUS 440C |
| AMS | 5618 / 5630* |
* Standard AMS 5618 is an aerospace quality grade of 1.4125 / 440c. This grade can be offered from new production if required. Some of our material is certified to AMS 5630. Please enquire.
View our ISO 9001:2000 Certificates
In the highly competitive world of manufacturing, sourcing high quality materials is essential. Intoco, a UK based manufacturing company, specialise in 'no-compromise' manufacturing using state of the art CNC equipment. We are also the UK's largest independent stockholder of hot work toolsteels. From the experience gained in buying high quality tool steel, Intoco have added a further steel to their range, this being a Chromium martensitic steel called 440C/1.4125/4125 Stainless Steel.
In the hardened condition this material has a martensite + carbide structure. It is capable of attaining, after heat treatment, the highest strength, hardness (57 - 61 Rc) and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which makes 440C/1.4125/4125 particularly suited to such applications as ball bearings, rollers and valve parts.
Martensitic stainless steels are optimised for high hardness. The properties are specified for bar product in ASTM A276. It has good resistance to the atmosphere, fresh water, foods, alkalies and acids. The corrosion resistance of grade 440C/1.4125/4125 approximately matches that of grade 304 in many environments. 440C/1.4125/4125 Stainless Steel is used in a wide variety of industries including bearing manufacture, food applications, aerospace applications, surgical instruments, cutlery, etc.
Amongst other manufacturer's, we stock Bohler Uddeholm's grade N695 extra steel. This is equivalent to :- Din 1.4125 - X105CrMo17. AISI 440c AMS 5618/5630 UNS S44004 AFNOR Z100CD17 JIS SUS 440C UNI X102CrMo17 KU/X105CrMo17. 440C/1.4125/4125 Stainless Steel in the UK, Intoco now stock this in rolled/forged bar that can be cut to length as required. We now also stock 440c/1.4125/4125 in sheet and plate form which can be laser and water cut if required.
| We can also supply: | |
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Coils in drawn, pickled or black finish. Also Plate, Strip and Forging Billet. |
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A "Bohler" ESR Grade of 1.4125/440c. |
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A "Bohler" Grade of steel produced by powder metallurgy methods. Click here to download a PDF of the brochure (1MB) |
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A "Uddeholm" Grade of steel produced by powder metallurgy methods. Click here to download a PDF of the brochure (235KB) |
| 1.4125 / 440c Size Range (Ex-Stock): | ||||
| Forged/Rolled, Annealed, Machined bars in 3-5 metre lengths (Cut to length if required). | ||||
| Metric | Imperial | Tol. | Due | |
|---|---|---|---|---|
| dia | 6.40mm | 0.252" | h9 | |
| dia | 8.00mm | 0.315" | h9 | |
| dia | 10.00mm | 0.394" | k11 | |
| dia | 13mm | 0.512" | h11 | |
| dia | 16mm | 0.630" | k11 | |
| dia | 20mm | 0.787" | h11/k11 | |
| dia | 23mm | 0.906" | k11 | |
| dia | 25.6mm | 1.008" | k11 | |
| dia | 26mm | 1.024" | h11 | |
| dia | 29mm | 1.142" | k11/k12 | |
| dia | 32mm | 1.260" | k11 | |
| dia | 35mm | 1.378" | h11/k11 | |
| dia | 40mm | 1.575" | k11/k12 | |
| dia | 42mm | 1.654" | k11/k12 | |
| dia | 45mm | 1.772" | k11 | |
| dia | 48mm | 1.890" | k11 | |
| dia | 51mm | 2.008" | k11 | |
| dia | 57mm | 2.244" | h11/k11 | |
| dia | 64mm | 2.520" | k11 | |
| dia | 70mm | 2.756" | k11 | |
| dia | 77mm | 3.031" | h11/k11 | |
| dia | 80mm | 3.150" | h11/k11 | |
| dia | 85mm | 3.346" | h11/k11 | |
| dia | 90mm | 3.543" | h11/k11 | |
| dia | 95mm | 3.740" | k11 | |
| dia | 103mm | 4.055" | h11/k11 | |
| dia | 112mm | 4.409" | k11 | |
| dia | 121mm | 4.764" | k14 | |
| dia | 135mm | 5.315" | k14 | |
| dia | 152mm | 6.000" | Din1013 | |
| dia | 154mm | 6.063" | k14 | |
| dia | 170mm | 6.693" | k14 | |
| dia | 190mm | 7.480" | k14 | |
| dia | 205mm | 8.071" | k14 | |
| dia | 222mm | 8.740" | k14 | |
| dia | 242mm | 9.527" | k14 | |
| dia | 260mm | 10.236" | -0/+2mm | |
| dia | 282mm | 11.102" | k14 | |
| dia | 312mm | 12.283" | k11 | |
| Note: Non stock items are available ex-mill, in short lead times. Please contact us with your enquiry. | ||||
| 1.4125/440c Plate – Size range EX-STOCK: | ||||
| Hot-Rolled, Annealed, Descaled. Can be laser, plasma or water cut to size if required. | ||||
| Length (mm) | Width (mm) | Thickness (mm) | –/+ (mm) | |
| 4000 | 1300 | 3.20 | 0/0.36 | |
| 2000 | 1000 | 4.50 | 0/0.40 | |
| 4000 | 1400 | 4.80 | 0/0.44 | |
| 4000 | 1400 | 6.40 | 0/0.50 | |
| 4000 | 1400 | 8.00 | 0/0.60 | |
| 2000 | 1000 | 12.00 | 0/0.60 | |
| 2000 | 1000 | 16.00 | 0/0.60 | |
| 2500 | 1000 | 20.00 | 0/0.70 | |
| Note: None stock items are available ex-mill, in short lead times. Please contact us with your enquiry. | ||||
Partner Links:
Manufacturing
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| www.intoco.co.uk | www.earl-thompson.co.uk | www.firstfound.co.uk | www.ttigroup.org.uk |