- ASTM 51310 Valve
- ASTM 51310 Flange
- ASTM 51310 pipe fitting
- ASTM 51310 angle bar
- ASTM 51310 pipe
Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.
Steel Pipe: 1 - 1300mm, also can be customed.
Pipe fitting Size: 1/8 inch - 80 inch (DN6 - DN2000)
Flange Size: DN6 - DN2000
Lenth: Any lenth based on the customer's requirement.
|CHINA GB||USA ASTM||JAPAN JISG||Germany DIN||UK BS||NF||ISO|
Mold steel is used to make Die, forging and molding mold mold steel. The mold is the main processing tools for manufacturing parts in machinery manufacturing, radio instruments, motors, appliances and other industrial sectors. The quality of the mold directly affects the quality of the pressure process, the accuracy of product yield and production costs, quality and service life of the mold in addition to relying on the structural design and machining accuracy, mainly due to the impact of mold materials and heat treatment. Steel mold classification Conditions of service of the United States according to the mold, the mold steel into four categories, listed at the American Society for Metals, Tool Steel Committee: cold work die steel hot work die steel and plastic mold steels, plastic mold steels four major categories. Which, cold work die steel and the separation of the 12 subclasses to 9 subclasses of hot work die steel, plastic mold steel. Liu Die Steel 2 subcategories, plastic mold steel categories. Each subclass of the selection depends on three main factors:◆ the complexity of the size and shape ◆ raw materials ◆ durability requirements or design life. The steel process performance Workability - Thermal processing performance, refers to thermoplastic processing temperature range; hot work die steel. - Cold performance, refers to cutting, grinding, polishing, cold drawing processing performance. Hardenability and Hardenability Hardenability depends on the chemical composition of steel and the original organization of the state before quenching; the hardenability mainly depends on the carbon content in steel. For most of the cold work die steel, hardenability is often one of the main considerations. For hot work die steel and plastic mold steel, the general size of the mold, especially in the manufacture of large mold, its hardenability is more important. In addition, the complex shape prone to heat treatment distortion of various molds, in order to reduce quenching distortion, often as much as possible using less cooling capacity of quenching media, such as air-cooled, cold oil or salt bath cooling, in order to get the required hardness and hardened layer depth, we need to adopt the hardenability good die steel. Quenching temperature and heat treatment distortion In order to facilitate the production, mold steel quenching temperature range as possible to relax some, especially when mold heated by the flame hardening, difficult to accurately measure and control temperature, mold steel quenching temperature range wider. Mold during heat treatment, especially in the quenching process, to produce changes in size, shape warping, distortion, etc., in order to ensure the quality of the mold, require heat treatment of steel mold deformation, in particular, is difficult to trim for the complex shape of precision molds, after quenching more demanding requirements for the degree of heat treatment distortion, it should make use of micro-deformation of the mold steel. Oxidation, decarburization sensitivity Mold in the heating process, oxidation, decarburization, it will make it hardness, wear resistance, the use of performance and service life to reduce; Therefore, the requirements of the mold steel oxidation, decarburization sensitivity. Mold steel with high molybdenum content, due to oxidation, decarburization sensitivity requires the use of special heat treatment, such as a vacuum heat treatment, controlled atmosphere heat treatment, salt bath heat treatment. Other factors In addition to performance and process performance must consider the choice of die steel, but also must consider the versatility of the mold steel and steel prices. Performance requirements 1 Strength properties (1) Hardness Hardness is the main technical indicators of the mold steel mold under high-stress the role of desire to maintain its shape and size unchanged, must have sufficiently high hardness. Cold-working die steel at room temperature, hardness remained at the HRC60 about hot work die steel according to their working conditions, general requirements to keep HRC40 ~ 55 range. For the same steel, within a certain range of hardness values, the hardness and deformation resistance is proportional to; but with the same hardness value, composition and organization of different kinds of steel, plastic deformation resistance may have significant differences.(2) red hardness under high temperature hot die to maintain the stability of its organization and performance requirements, so as to maintain a sufficiently high hardness, this performance is called the red hardness. Carbon tool steel usually can maintain this performance in the 180 ~ 250 ° C temperature range, chromium molybdenum hot work die steel to maintain this performance is generally 550 to 600 ° C temperature range. The red hardness of steel depends on the chemical composition and heat treatment of steel.(3) compressive yield bending strength and compressive strength of the mold during use, often by the strength of high pressure and bending effects, thus requiring the mold material should have a certain compressive strength and flexural strength. In many cases, the compression test and bending test conditions close to the actual working conditions of the mold (for example, measured by the compression of the mold steel yield strength and punch out when the deformation resistance is more consistent) . Another advantage of the bending test is the absolute value of the variable large more sensitive to reflect the different kinds of steel deformation resistance under different heat treatment and organization of the state the difference. 2 toughness in the work process, the mold under impact loading, in order to reduce the break during use, chipping and other forms of damage, mold steel has a certain toughness. The number of mold steel's chemical composition, grain size, purity, carbides and inclusions such as morphology, size and distribution, as well as mold steel, heat treatment and after heat treatment, microstructure and other factors on steel the resilience of a great deal of influence. In particular, the deformation of steel purity and thermal processing for the transverse toughness is more obvious. Toughness, strength and wear resistance of steel are often mutually contradictory.Therefore, reasonable to select the steel chemical composition and the use of reasonable refining, thermal processing and heat treatment process, so that the wear resistance, strength and toughness of mold materials to achieve the best with. Impact toughness Department of table of characteristics of materials to sample the total energy absorbed in the fracture process in a shock process. But a lot of tools in different working conditions of fatigue fracture, conventional impact toughness can not fully reflect the fracture properties of the mold steel. Small energy several attacks on the work of fracture or multiple fracture of life and fatigue life test is being used. 3. Wear resistance Decided to mold the life of the most important factor is often the wear resistance of the mold material. 4 thermal fatigue capacity Hot work die steel under the conditions of service in addition to the cyclical changes of the load bearing, but also by the high temperature and cyclic thermal shock effect, therefore, the evaluation should pay attention to material fracture resistance of hot work die steelthermal mechanical fatigue fracture properties. The thermo-mechanical fatigue is a comprehensive performance indicators, which includes the thermal fatigue properties, mechanical fatigue crack growth rate and fracture toughness of the three aspects. 5. Bite resistance Bite resistance is an actual "cold welding" resistance. Common mould steel Plastic mold steel, the MEK wear high toughness the plastic the mold X13T6W (236) high wear and high corrosion resistance the mirror the mold X13T6W (236H) high abrasion resistance High corrosion-resistant mirror mold thermal tool steel SMV3W die-casting mold, extrusion mold, plasticmode the ADC die casting, extrusion mold plastic mold steel 718S plastic mold module within the module 718H plastic mold S136 S136H resistant to corrosion, corrosion-resistant mirror mold mirror surface mold the OPTIMAX optical grade mirror stainless steel mold ELMAX high abrasion resistant to corrosive plasticmold CORRAX S336 high corrosion resistance of plastic mold RAMAX 168 cutting corrosion-resistant plastic mold CALMAX 635 cold work and plastic mold hot work tool steels 8407 metal die-casting, extrusion mold cold work tool steel the DF2 micro deformation wear oil steel, cold stamping die the XW42 cold extrusion forming die, precisionmetal mold V10 high-life precision punching mold plastic mold steel P × 88 general-purpose plastic mold, well-polished performance NAK55 high-performance plastic mold, rubber mold NAK80 highly-polished mirror-plastic model the S-STAR mirror the degree of resistance to corrosion of the mold the S-STAR (A) mirror the degree of corrosion-resistant mold hot work tool steel DH31-SUPER metal die-casting, extrusion die Cold work tool steel YK30 blanking die, bending die GOA cold press processing, blanking die, blanking die plastic mold steel P20HH plastic mold forming die DC11 cold extrusion, tensile modulus DC53 cold extrusion, tensile modulus,P20LQ plastic mold plastic mold steel, the LKM 638 general plastic mold, mold under the module the LKM 2311 general plastic mold, mold, and the next module the LKM 2312 general plastic mold, mold, and the next module the LKM 738 general plastic mold, moldinserts and lower mold pieces of the LKM 738H general plastic mold, mold module LKM 818H high polishing degree and high demand The LKM 2711 high hardness and high toughness, large-scale plastic model, the LKM 2 083 anti-acidic well-polished plastic mold the LKM 2083H anti-acid generally polishing the plastic mold the LKM 2316A highly acidic plastic mold of the LKM 2316 highly acidic plastic mold the LKM 2316ESR highly acidic plastic mold hot work tool steels LKM2344 metal die casting, squeeze the mode the LKM 2344SUPER metal die-casting, extrusion die cold work tool steel, the LKM 2510 micro-deformation wear oil steel the LKM 2379 micro-deformation high wear-resisting oil steel the LKM 2767 micro-deformation wear oil steel, plastic mold steels MUPplastic Plastic mold the steel PORCERAX II PM-35 plastic and die-casting mold, breathable steel alloy beryllium copper MOLDMAX MM40 required rapid cooling mold core inserts, alloy copper HIT75 the MOD required rapid cooling mold core inserts, pure copper C1100P copper public workpiece electricalcorrosion of pure copper C1100P copper the male workpiece alloy aluminum 6061-T6/T651 blow mold, plastic mold, shoe mold, foam mold 6061-T6511 blow mold, plastic mold, shoe mold, foam mold 7075-T651 alloyyellow card of steel 7022-T651-the S55C plastic mold steel, carbon steel S50C steel Tpye of Wuyang 718 High-speed steel for high-quality high-speed steel SKH-9/SKH-51 powder ASP-23/ASP-60 bottom carbon steel A3 carbon steel 45 # 18.