Open a grade to compare its characteristics, uses and processing needs. Choose a product within that entry to carry the grade into your specification.
410 is a martensitic stainless steel selected for a balance of strength and moderate corrosion resistance.
It is used for mechanical parts and fabricated components that require a specified heat-treated condition.
Choose annealed material or a heat-treated condition to suit the part. Include the later forming, machining and heat-treatment sequence in your enquiry.
410 gains strength through heat treatment. It differs from non-hardenable ferritic 430 and from the higher-hardness selection focus of 420.
416 combines free-machining characteristics with the ability to harden through heat treatment.
Typical uses include machined shafts, fittings and small mechanical parts.
Your machining plan, final hardness and heat-treatment stage help define the material condition. Include any welding or severe forming before the order is agreed.
416 emphasizes machining compared with basic 410. Unlike ferritic 430F, it is a hardenable martensitic grade.
420 is a hardenable martensitic grade used where hardness, wear resistance and a finished surface are important.
Typical uses include cutting parts, mould components and wear-exposed mechanical items.
Your material specification, forming or machining plan and final heat treatment define the requirement. A polished appearance and final hardness need to be stated separately.
420 covers a different hardness and wear balance from 410. Keep 420J2 separate when the drawing specifies that exact designation.
420J2 is a martensitic grade used for formed parts that subsequently require heat treatment and cutting performance.
Typical uses include blades and other cut or stamped components.
Specify the exact grade, forming condition, final heat treatment and edge-finish requirements. State whether delivery is before or after the customer’s hardening process.
420J2 is kept as its own designation. Compare it with the specified 420 material instead of assuming a direct equivalence.
431 is a martensitic stainless steel that can be quenched and tempered to balance hardness, strength and toughness.
Common uses include shafts, valve stems, fasteners and other mechanically loaded components.
Your required heat-treated condition, machining sequence and inspection criteria define the final material requirement; the grade name alone does not specify mechanical properties.
431 is heat treatable, unlike general-purpose austenitic grades such as 304. Its selection should address both the mechanical duty and the actual corrosion exposure.
440C is selected for high hardness and wear resistance in a hardened and tempered condition.
Typical uses include bearing components and precision wear parts.
Identify the required heat-treated state, finishing sequence and dimensional control after hardening. For sheet enquiries, include the component drawing and cutting requirements.
440C has a different hardness and fabrication balance from 410 or 420. Ease of forming in the supplied state and final wear performance are separate considerations.
Specify the heat-treatment or ageing condition and target hardness required for the selected grade and finished part.
Your dimensions, surface finish and planned forming or welding help complete the material requirements for your part.
Include the required product standard, tolerances and inspection documents. We review the grade, product form and material condition together for the order.
Browse the product forms in this material family. For a grade-specific enquiry, use the product link inside the grade entry; you can also send a drawing or describe the part you need.
Share your part drawing and any known grade, material condition or hardness requirement. Add the dimensions, quantity and destination, and we can discuss the remaining details with you.
