| Sinotech ASTM A128 High Manganese Steel Investment Castings (2024)

ASTM A128 Grade A (UNS J91109) is Manganese steel for abrasive casting applications.
ASTM A128 / A128M – 93(2017) Standard Specification for Steel Castings, Austenitic Manganese
ASTM A128 Grade A Casting Chemical Composition:
Carbon: 1.05-1.35
Manganese: 11.0 min
Silicon: 1.00 max
Phosphorus: 0.070 max

| Sinotech ASTM A128 High Manganese Steel Investment Castings (1)

Investment casting ASTM A128 is similar to investment casting other steels, but the heat treatment is far more exacting and difficult. Sinotech begins with your 3-D CAD drawings and uses advanced modeling software to create precision mold designs. The modeling assures uniform heat flow and cooling through strategic placement of gates and gas vents.

Grades. Here are the available grades of ASTM A128A/A128M – 19

| Sinotech ASTM A128 High Manganese Steel Investment Castings (2)

Heat Treatment. Here is a typical heat treat process we use for ASTM A128A investment castings.

First, parts are strung along a steel wire to maintain proper separation for adequate air flow, ensuring uniform heating and cooling. Strings of parts are coiled into a nest to further promote uniform air flow. The parts remain in strings through the heat treating and quenching processes.

Metallurgical Acceptance. Metallurgical acceptance is determined in accordance with the American Society for Testing of Metals Atlas of Microstructures of Industrial Alloys according to agreed upon acceptable microstructures. A section of the part is cut and treated with an etchant used to prepare the specimens.

| Sinotech ASTM A128 High Manganese Steel Investment Castings (3)

Sinotech can ensure excellent ASTM A128 investment castings from our Pacific Rim factories and is very price competitive. Sinotech is dedicated to managing your casting project and delivering parts to you at lower prices but with the same quality, service and terms as a domestic supplier. Click on the “Get in Touch” icon at the top of this page to get started.

| Sinotech ASTM A128 High Manganese Steel Investment Castings (2024)

FAQs

What is the ASTM standard for manganese steel? ›

ASTM A128 Grade A (UNS J91109) is Manganese steel for abrasive casting applications.

What is high Mn steel grade? ›

High Manganese Steel Plates are composed of steel containing 11% to 14% manganese. The material's high wear resistance and toughness make it an ideal choice for various applications in a range of industries. Many industries that require wear-resistant parts widely use it, including mining, construction, and metallurgy.

What is high manganese steel used for? ›

Because of its self hardening properties, manganese steel has been used in the mining industry for many years – cement mixers, rock crushers, crawler treads for tractors, elevator and shovel buckets – as well as in the rail industry (switches and crossings) and other high impact environments.

What is the difference between manganese steel and carbon steel? ›

Both high manganese steel plate and high carbon steel are known for their exceptional strength. However, high carbon steel is known for its higher tensile strength, while high manganese steel plate is known for its excellent toughness.

What happens if manganese content increases in steel? ›

Manganese increases hardenability and tensile strength of steel, but to a lesser extent than carbon. It is also able to decrease the critical cooling rate during hardening, thus increasing the steels hardenability much more efficient than any other alloying elements.

What does Mn stand for in steel? ›

Manganese is usually added to most modern steels in small amounts because of its powerful ability to remove impurities.

What is the strongest grade of steel? ›

Two of the strongest grades of steel are EN24T and T45 which are widely used across engineering, aeronautics, and motor sport due to their reliable mechanical properties.

What is the best steel grade in the world? ›

Most stainless steel ordered around the world is Grade 304. It offers the standard corrosion resistance, formability, strength, and easy maintenance for which stainless is known. While 316 comes in second in terms of quantities sold, it offers vastly superior corrosion resistance to chlorides and acids.

What is the difference between Grade A and Grade B ASTM? ›

What is the difference between ASTM A53 Grade A and Grade B? ASTM Grade B has higher mechanical requirements, different chemical composition, and higher test pressures than Grade A. Grade B meets and exceeds all of the properties of Grade A.

What is the chemical composition of manganese steel casting? ›

It has nominal composition of iron, 1.0 to 1.4 % carbon and 10 to 14% manganese in a 1 to 10 ratio. The present paper deals with a comprehensive analysis on the overview of high manganese steel casting.

What is Grade B material? ›

ASTM A106 Grade B is a mild steel pipe material usually used in industrial plants, power plants, power plants, refineries, and chemical plants. ASTM A106 GR. B Carbon Steel Seamless pipes must be solution annealed according to the heat treatment part to restore the ferrite.

What are the disadvantages of manganese in steel? ›

Manganese Disadvantages

Although it's known for increasing the strength and hardness of steel, too much manganese can make steel brittle and difficult to work with. There are also issues in terms of its availability.

Is manganese steel stronger than steel? ›

Manganese can reach a hardness score of almost 600 BHN, giving it about 5 times the hardness of mild steel, and almost 3 times the hardness of annealed stainless steel.

Will manganese steel rust? ›

This type of steel is often used in the construction of residential buildings, as it can withstand high levels of stress and strain. Plus, manganese steel is resistant to rust and corrosion, making it a great choice for homes in humid or salty climates.

What is ASTM E 45 standard? ›

ASTM Method E-45 is the standard test method for determining the inclusion content of steel. Methods A, B, C, D and E cover a number of recognized procedures for determining the nonmetallic inclusion content of wrought steel. Macroscopic methods include macrotech, fracture, step-down, and magnetic particle tests.

What is ASTM C954? ›

C954 Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. ( 0.84 mm) to 0.112 in. ( 2.84 mm) in Thickness.

What is ASTM A751? ›

ASTM A751. These test methods and practices cover definitions, reference methods, practices, and guides relating to the chemical analysis of steel, stainless steel, and related alloys. They include both wet chemical and instrumental techniques.

What is ASTM 416? ›

ASTM International. This specification deals with the standard types and grade requirements of seven-wire, uncoated steel strands for use in the construction of pre-tensioned and post-tensioned pre-stressed concrete. The two types of strand are low-relaxation and stress-relieved (normal relaxation).

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