S136H Plastic Mold Steel

One. Product Description

S136H is a Plastic Mold Steel with excellent corrosion resistance. It has excellent production characteristics, high-precision polished steel surface, excellent corrosion resistance, and less heat treatment deformation.

Two. Quality Standard

ASTM A176 1999 Standard Specification

Three. Product Specifications

Four. Equivalent Grade of S136H Mold Steel  - For Reference Only

Five. Product Features and Uses

Features:

1. After the mold is used for a long time, the surface of the mold cavity still maintains the original smooth state. No special protection is required when handling or storing molds in wet environments.

2. The mold is not corroded by the influence of cooling water. Due to a certain cooling cycle, the life of the mold can be increased. The above advantages combined with the high wear resistance of S136H provide low maintenance costs and long life molds for optimal economy. At the same time, S136H is refined by "Electroslag Remelting" (ESR), the structure is pure and fine, so that the mold has good comprehensive mechanical properties and high polishing performance.

Use:

S136H is suitable for all molds, because of its special properties, it is more suitable for the needs of special environments.

Corrosion and strain resistance: For the use of corrosive PVC acetate (injection materials or molds such as ACETATESO must work and be stored in humid environments, S136H can resist the corrosive action of water vapor, weak organic acids, dilute nitrates, carbonic acid) ) Salt, etc., moulds made of S136H, operating in wet environments or using corrosive plastic materials under normal conditions, will not rust and contaminate the beam. It especially exhibits excellent corrosion resistance if tempered to 250°C and polished to a mirror finish.

Wear resistance: Use injection molding materials with more friction (including injection molds) or molds that require a long working time, such as electronic parts, discarded tableware, utensils, etc.

High-gloss surfaces: production of optical products such as cameras, sunglasses, chemical instruments, syringes, analytical instruments and plastics.

Six. Product Detailed Information

S136H mold steel is high-grade plastic mold steel imported from Sweden. Made with special VD and ESR smelting technology. It has a pure and fine structure and excellent corrosion resistance, polishability and good wear resistance, machinability and excellent dimensional stability during hardening. Widely used in high polishing, high-demand inner mold, high corrosion-resistant plastic mold, production, medical, food industry and other products. S136 H mold steel imported from the country of origin is imitated by various countries, but has never been surpassed to the same level, especially at home. Thousands of agents bloom.

In response to this situation, the company changed the original source procurement mode of imported materials, from the original domestic agency distribution, to directly apply for special steel import and export licenses for direct import and parallel import. After Dongguan Kaiding Hardware Co., Ltd. was established, all imported materials were imported by the company itself. Although the cost has increased, the reliability of supply is guaranteed. The company can directly provide customs information and import approval documents to customers for review.

S136H imported from the origin is a plastic mold steel with excellent corrosion resistance. It not only has excellent production characteristics and is easy to make, but also the surface of the cavity remains smooth after long-term use of the mold made of imported S136 H. Molds require no special protection during handling or storage. humid environment. The mold is not corroded by cooling water. Due to a certain cooling cycle, the life of the mold can be increased.

S136HESR mold steel is more suitable for high-gloss product molds: such as cameras, sunglasses, chemical instruments, syringes, analytical instruments and the production of optical products such as plastic products.

S136 stock mold steel is available in the following 4 models:

1. S136 ESR

2. S136H ESR

3. S136 SUPREME ESR

4. S136H SUPREME ESR

Processing and heat treatment:

Polishing: S136H uses 180-320 mesh grinding wheel or grinding stone for initial grinding, 400-800 mesh sandpaper or powder grinding, diamond paste with a particle size of 12.6 and 3pm, and the polished product after quenching and tempering.

Grinding: Proper grinding techniques can avoid cracks and extend tool life. If the material is ground under low temperature tempering, it becomes very sensitive during the grinding process. Only soft, fine-grained grinding wheels should be used, and a good coolant must be provided.

Welding: Tool steel should generally be avoided as it is prone to cracking. If the preparations before welding are done, such as preheating the welding part, it is easier to succeed, and stress relief tempering must be carried out immediately after welding.

Stress relief: After rough machining, it must be heated to 650°C, soaked for 2 hours, slowly cooled to 500°C, and then air-cooled.

Annealing: heated to 780°C under protection, then cooled to 650°C in a furnace at a rate of 10°C per hour, then cooled in air.

Hardening: preheating temperature 600~850℃, quenching temperature 980~1050℃.

Quenching medium: oil, quenching in salt bath furnace at 200~550℃, air cooling.

Compressed air: circulating air or atmosphere.