Dm4 Tool Steel Forged Cold Work Mould Steel Plate Round Bar

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• Model NO.: Steel Plate
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

Description
 

DM4 is a commonly used mold steel, belonging to the category of cold work mold steel. It possesses
excellent hardness, wear resistance, and corrosion resistance, making it suitable for manufacturing
various molds such as plastic molds, die-casting molds, and stamping molds. DM4 mold steel has
high hardness and strength, maintaining good stability at high temperatures, thus finding extensive
applications in mold manufacturing.

The main components of DM4 mold steel include carbon, chromium, molybdenum, cobalt, and other
elements. Carbon enhances the hardness and strength of the steel, chromium improves its corrosion
resistance, molybdenum enhances wear resistance and toughness, while cobalt increases hardness
and wear resistance. The rational proportioning of these elements endows DM4 mold steel with
excellent comprehensive performance, meeting various demands in mold manufacturing.

The heat treatment process of DM4 mold steel also significantly affects its performance. Typically,
DM4 mold steel undergoes quenching and tempering processes to enhance its hardness and
toughness. Quenching rapidly cools the steel to achieve high hardness, while tempering alleviates
the brittleness caused by quenching, improving the steel's toughness. Through proper heat treatment
processes, DM4 mold steel can achieve a high service life and stable performance.

Chemical Composition(%)

C	Si	M n	S	P	Cr	Mo	Ni	V
0.70-0.80	0.70-1.20	≤0.50	≤0.03	≤0.03	6.70-7.50	2.00-2.50	/	1.70-2.20

(1)DM4 mold steel is a kind of cold working die steel with high strength, toughness and wear resistance

(2)Its compressive strength, bending strength and wear resistance are high, due to the addition of a variety
of alloy elements, improve the hardenability. After quenching, high hardness martensite structure and a small amount of residual austenite are obtained, which has good tempering resistance, and can produce secondary hardening effect, and can obtain high hardness and wear resistance

DM4 mold steel is a commonly used material in mold manufacturing, featuring outstanding hardness, wear resistance, and corrosion resistance. Its rational composition and heat treatment processes endow it with high comprehensive performance, meeting various demands in mold manufacturing.