Description
IS X40Cr13 Flat Bars / X39Cr13 Flat Bars / X40Cr14 Flat Bars
X40Cr13 Flat Bars are High Chromium Martensitic Stainless tool steel flat bars designed for applications requiring a combination of hardness, wear resistance, corrosion resistance and good surface finish. They are widely used for plastic moulds, mould inserts, tooling, precision components, dies, punches and other engineering applications.
X40Cr13 is commonly associated with 420 / 420B / 420C and related chromium stainless mould-steel designations, although exact grade equivalence should always be confirmed against the applicable material standard and mill test certificate. Industry references identify X40Cr13 type steels as suitable for plastic moulding applications, particularly where corrosion resistance, polishability and wear resistance are important.
The interaction between carbon and chromium is central to this grade. Carbon allows the steel to form a hard martensitic structure upon quenching. Chromium creates a passive oxide layer on the surface, which protects the steel from corrosion in mild atmospheric and chemical environments. By controlling these elements, you can achieve high wear resistance while retaining essential stainless properties.
At Textron Steel and Alloys, X40Cr13 Flat Bars can be supplied in different sizes, conditions and cut lengths according to customer requirements.
- • IS 1570 (Part 5) : X40Cr13
- • IS 6603 : X40Cr13
- • IS 6911 : X40Cr13
- • IS 6529 : X40Cr13
- • IS 1570-5 (1985): Schedules for Wrought Steels, Part 5: Stainless and Heat-resisting Steels
- • IS 6603 (2001): Stainless Steel Bars and Flats
- • IS 6911 (1992): Stainless steel plate, sheet and strip
- • IS 6529 (1996): Stainless steel blooms, billets and slabs for forging
IS X40Cr13 Chemical Composition of X40Cr14 or X39Cr13 :
| Standard | IS 1570-5 | EN 10088-3 | BS EN ISO 4957 | |||
| IS 6603 | EN 10088-2 | |||||
| IS 6911 | ||||||
| IS 6529 | ||||||
| Grade | IS X40Cr13 | EN X39Cr13 | EN X40Cr14 | |||
| Elements | Min. | Max. | Min. | Max. | Min. | Max. |
| C | 0.35 | 0.45 | 0.36 | 0.42 | 0.36 | 0.42 |
| Si | – | 1.00 | – | 1.00 | – | 1.00 |
| Mn | – | 1.00 | – | 1.00 | – | 1.00 |
| Ni | – | 1.00 | – | – | – | – |
| Cr | 12.00 | 14.00 | 12.50 | 14.50 | 12.50 | 14.50 |
| S | – | 0.030 | – | 0.030 | – | 0.030 |
| P | – | 0.040 | – | 0.040 | – | 0.030 |
Applications of IS X40Cr13 Stainless Steel :
The combination of high hardness, good wear resistance, and moderate corrosion resistance makes X40Cr13 a versatile material for many industries.
• Knives, Blades, and Scissors: Its ability to achieve high hardness and retain a sharp edge makes it a popular choice for professional cutlery, industrial blades, and surgical cutting tools.
• Valve and Pump Components: You can use it for valve seats, pump shafts, and pistons where high wear resistance is needed in mildly corrosive service.
• Molds and Dies: Its high hardness and excellent polishability make it suitable for plastic injection mold inserts and extrusion dies.
• Measuring Tools: Used for gauges, calipers, and other precision measuring instruments that require dimensional stability and wear resistance.
• Food Processing Equipment: Its stainless properties, when passivated, allow it to be used for cutting tools and machine parts in food processing.
• Fasteners and Hardware: Ideal for high-strength bolts, screws, and hardware where hardness is more critical than maximum corrosion resistance.
X40Cr13 steel is used across several industries, including:
• Plastic Injection Moulding
• Plastic Processing
• Medical Equipment
• Pharmaceutical Packaging
• Food Processing
• Automotive
• Optical Components
• Consumer Products
• Engineering
• Tool & Die Manufacturing
• Packaging
• Electronics
