X120MN12 grade manganese plate & Sheets Supplier in Mumbai-India.
Manganese steel - also known as hard manganese steel or manganese hard steel – in its quenched state has the emblematic of significantly increasing its original low tensile strength and hardness in the cold-worked layer by intense cold working without this having an adverse effect on the originally very high persistence. The cold working performed increases the wear-resistance enormously. It can be bent, flanged and pierced because of its high persistence. Chipping at room temperature with hard metal tools is only possible to a limited extent.
Reading the text: “In its quenched state” means in the water-toughened condition, “persistence” means toughness, and “chipping” means machining (chip-forming). Hard manganese steel is difficult to machine because it work-hardens under the tool, so machining is limited to hard-metal tools at low speed.
X120MN12 Grade Manganese Plates: Purchasing Specification
| Requirement | What to specify |
|---|---|
| Grade and standard | X120Mn12 (1.3401) or 12–14% manganese steel; say whether your drawing cites EN, DIN or the A128 Grade B-2 composition, and state the carbon and manganese range. |
| Condition | Austenitic, water-toughened (quenched) plate; it is non-magnetic and soft as delivered, and hardens only where it is worked. |
| Thickness | Properties vary with thickness; give the thickness range of your parts. |
| Cutting | Plasma, laser or waterjet cutting; oxy-fuel (flame) cutting is not suited to austenitic manganese steel. |
| Welding | Austenitic manganese consumables and low heat input; do not preheat and keep the plate cool between passes. |
| Documents | Mill test certificate (EN 10204 3.1) with chemistry and mechanical properties. |
Typical use of manganese steel
- Hangers in blasting machines,
- Crusher jaws
- Crusher jaw inserts
- Power shovel bolts
- Power shovel connectors
- Gripping teeth
- Impact mills
- Centrifugal mills
- Protective grills
- Doors
- Cladding
- Safety plates
It is used generally for intense percussion and impact stresses.
Manganese steel can be welded both electrically and autogenously. Electrical welding is, however, preferred because with autogenously welding procedures, burn-off of manganese and carbon may easily occur. Shielded electrodes at 0.8% - 1.0% C and 15 - 18% Mn must be used for electric welding. The wear resistance is somewhat lower at the weld seam than with the remaining material.
Welding and cutting: Keep heat input low and do not preheat: reheating austenitic manganese steel can make it brittle, so interpass temperatures are commonly limited to about 250 °C. Oxy-fuel (flame) cutting is not suited to this steel; use plasma, laser or waterjet cutting.
Material data sheet 1.3401
| DIN | AISI | BS | AFNOR | UNI |
|---|---|---|---|---|
| 1.3401 | A 128 | BW 10 | Z 120 M 12 | X 120 Mn 12 |
Standards table: ASTM A128 is the standard for austenitic manganese steel castings and the BS and AFNOR names are older national designations; the current EN name is X120Mn12 (1.3401). They are comparable, not always identical.
Chemical composition
| C | Mn | Si | P | S |
|---|---|---|---|---|
| 1,10 - 1,30 | 12,00 - 13,00 | 0,30 - 0,50 | max. 0,100 | max. 0,04 |
Reading the numbers: Decimal commas are used: 1,10 – 1,30 means 1.10–1.30% carbon, and “max. 0,100” means 0.100% phosphorus maximum.
Mechanical properties at room temperature
| Dimensions | Yield point N/mm² | Tensile strength N/mm² | Ductile yield (Lo=5do) | Contraction % |
|---|---|---|---|---|
| <= 16 mm | >= 410 | 680 - 1180 | >= 40 | >= 40 |
| 17 mm - 40 mm | >= 390 | 830 - 1080 | >= 42 | >= 40 |
| 41 mm - 100 mm | >= 345 | 780 - 1080 | >= 45 | >= 45 |
Reading the properties: “Dimensions” are plate thicknesses, “ductile yield” is elongation (on a 5-diameter gauge length) and “contraction” is reduction of area. N/mm² equals MPa.
How the Four Manganese Steel Pages Differ
The four pages describe the same family of austenitic manganese steel (about 12–14% manganese and 1.1–1.3% carbon), listed under different names. The steel is soft and very tough as delivered and hardens at the surface under repeated impact, so it suits crushers and impact wear better than pure sliding abrasion.
| Page | What it covers | Typical use (from the pages) |
|---|---|---|
| 12-14% | X120Mn12 / 1.3401 steel, 11.5–14% Mn, with chemistry, mechanical and physical tables | Transport parts, grizzly bars, truck bodies |
| X120MN12 (this page) | DIN 1.3401 data sheet, 12.0–13.0% Mn, properties by thickness up to 100 mm | Crusher jaws, shovel parts, impact mills, protective plates |
| MN13 | Fully austenitic, quench-annealed, non-magnetic 12–14% manganese plate | Severe surface wear with a work-hardening effect |
| HADFIELD | The same steel under its original name: about 250 BHN, work hardening to 500 BHN | Quarries, mines, foundry, concrete and brick works, scrap, automotive |
State the carbon and manganese range and the standard on your enquiry; mills differ in detail.
Related plates in this range
Applications for X120MN12 Grade Manganese Plates
Typical uses include crusher jaws, grizzly bars, truck bodies, impact mills, shovel parts and other parts under heavy impact and abrasion. Tell us the load, temperature and service conditions so the right grade and thickness can be quoted.
Cutting, Fabrication and Welding
Champak Industries describes full and part plate/profile supply and a plasma-cutting service. Send drawings, quantities, tolerances and edge preparation for your parts. Cut by plasma, laser or waterjet (not oxy-fuel), weld with austenitic manganese consumables at low heat input, and do not preheat or heat-treat the plate after delivery without the mill’s advice.
Testing, Inspection Documents and Traceability
| Requirement | What to identify in the order |
|---|---|
| Mill test certificate | EN 10204 3.1 showing brand and grade, heat number, chemistry and mechanical properties |
| Impact test | Charpy test temperature and minimum energy, if required |
| Ultrasonic test | Standard and acceptance class, if required |
| Traceability | Heat and plate number transferred to cut pieces |
See the company’s Quality Policy for its published policy.
Source X120MN12 Grade Manganese Plates from Champak Industries
Champak Industries’ company profile records its establishment in Mumbai in 1978 and its stockist, import and export activities. X120MN12 Grade Manganese Plates can be requested together with other plates in the Manganese Steel Plates range.
What Determines the Quotation?
Grade and brand, thickness, plate size, quantity, cutting, testing and packing all affect the quotation. Say whether pricing is needed per kilogram, per plate or per finished piece.
Packing, Dispatch and Export Requirements
Give the delivery address, required date and unloading constraints. For export orders, include the destination port, delivery terms and document list.
X120MN12 Grade Manganese Plates: Frequently Asked Questions
01What is X120MN12 Grade Manganese Plates?
X120Mn12 (1.3401) is an austenitic manganese steel plate with 12–13% manganese and 1.10–1.30% carbon, used for crusher jaws, shovel parts, impact mills and protective plates, with properties listed for thicknesses up to 100 mm.
02What is X120Mn12?
The European name for Hadfield-type austenitic manganese steel, material number 1.3401, with about 1.2% carbon and 12–13% manganese.
03What are the mechanical properties?
The page lists yield of at least 410, 390 and 345 N/mm² and tensile strength of 680–1180, 830–1080 and 780–1080 N/mm² for up to 16 mm, 17–40 mm and 41–100 mm.
04Can manganese steel be welded?
Yes, preferably by electric welding with shielded electrodes of 0.8–1.0% C and 15–18% Mn, as the page says; the wear resistance is somewhat lower at the weld seam.
05Can X120Mn12 be welded?
Yes, with a qualified procedure and consumables suited to the grade; follow the mill’s recommendations for preheat and heat input.
06Which certificate should I request?
An EN 10204 3.1 mill test certificate showing the brand and grade, heat number, chemistry and mechanical properties, plus impact results where you specify a test temperature.
07Can another brand replace X120Mn12?
Brands of the same class are comparable, not identical. Chemistry, toughness, thickness range and processing advice differ by mill, so confirm any substitution with your engineer.
08Can X120Mn12 plate be cut to size?
Yes. Champak Industries lists full and part plate and profile supply and a plasma-cutting service; send drawings, quantities and tolerances with your enquiry.
09Which sizes are available?
Availability depends on the grade, mill and thickness; send the thickness, width and length you need and sizes will be confirmed at quotation.
10How do I get a price and delivery date?
Send the grade, thickness, size or cutting drawing, quantity, destination and required date through the enquiry form below, by WhatsApp or by phone.