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Material: Steel, Surface treatment plating environmental protection ROHS color zinc
Product Specification
The 20 of 20 gauge steel refers to a carbon content of 0.2%, which is low carbon steel. The steel can be divided into low-carbon steel, medium-carbon steel, and high-carbon steel.
Carbon content: low carbon steel is generally less than 0.25%; medium carbon steel is generally between 0.25 to 0.60%; high carbon steel is generally greater than 0.60%.
In addition to steel contains carbon (C) elements and for deoxidation and contains a certain amount of silicon (Si) (generally not more than 0.40%), manganese (Mn) (generally not more than 0.80%, higher to 1.20%) alloying elements, does not contain other alloying elements (except for residual elements). Usually, the carbon content of less than 0.02% is called cooked iron, more than 2.11% to 4.3% is called pig iron, and the middle is steel.
The permissible stress of 20 gauge steel at 225℃: (16-36mm) 111-124MPa; (6-16mm) 117-131MPa
Permissible stress of 20 gauge steel at 100℃: 108MPa
(1) characteristics The steel is a high-quality low carbon steel, cold extrusion, carburizing hardened steel. The steel strength is low, and toughness, plasticity, and weldability are good. Tensile strength of 253-500MPa, elongation ≥ 24%.
20 characteristics and 15 steel are similar, but slightly higher strength. Uses: Suitable for the manufacture of automobiles, tractors, and general machinery manufacturing industry in the construction of less important small and medium-sized carburized carbonitriding parts, such as handbrake shoes, lever shaft, transmission speed fork, transmission passive gear and tractor camshaft, suspension equalizer shaft, equalizer bushings inside and outside; in the hot-rolled or normalized state for the manufacture of force is not large, but requires high toughness of various mechanical parts; in heavy, medium-sized machinery manufacturing industry, such as forging, forging, forging, forging, forging, forging, forging, forging, forging, etc, Medium-sized machinery manufacturing industry, such as forged or pressed tie rods, hook, and loop, levers, sleeves, fixtures, etc. In the turbine and boiler manufacturing industry is mostly used in the pressure ≤ 6N / square, temperature ≤ 450 ℃ non-corrosive media work in the pipe, flange, joint box, and a variety of fasteners; in the railroad, rolling stock for the manufacture of crossheads, pistons, and other castings.
Normalizing can promote the spheroidization of this steel, refining the large block first eutectic ferrite, and improving the cutting performance of less than 160HBS blank.
The steel mold parts process route is: the material → forging die billet → annealing → mechanical rough machining → cold extrusion molding → recrystallization annealing → mechanical finishing → carburizing → quenching, tempering → grinding and polishing → assembly.
(2) Delivery state and hardness Not heat-treated state, hardness ≤ 156HBS.
Product Packaging
Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.
Product Pictures
Packaging & Delivery and Packaging Details
1. Shrink film+wooden box
2. Cardboard box+pallet
3. Color box
4. As per the customer's request
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