It mainly uses the raw materials of large steel works and strictly produces according to the international standard iso3290 and the national standard GB / t308-2013,
Condar bearing ball
Production material
GCr15、AISI52100、SUJ2、100Cr6
Production specification
1.0mm-25.4mm
Production grade
G5/G10/G16/G20/G40
application area
Precision bearing, home appliance bearing, auto parts, wind power generation, precision machinery parts, ball screw, etc
The main production specification is 1.0mm-25.4mm, and the main grade is G5 / G10 / G16 / G20 and other precision bearing ball steel balls.
Mainly used in precision bearings, home appliance bearings, auto parts, wind power generation, precision machinery parts, ball screws and other fields. We can also make all kinds of non-standard steel balls according to customers' requirements.
Stainless steel ball:
Stainless steel ball principle:
Stainless steel ball does not rust, but is not easy to rust. The principle is to form a layer of dense chromium oxide on the surface of steel by adding chromium free element, which can effectively prevent the steel from contacting with the air again, prevent the oxygen in the air from entering the steel ball, and achieve the effect of preventing the steel ball from rusting.
Condar stainless steel ball
Production material
304, 316, 316L, 420, 440, 440C, etc
Production specification
0.3mm-60mm
Production grade
G10、G16、G40、G100、G200、G500、G1000
application area
Electronics, hardware, medical equipment, food grinding, auto parts, stainless steel bearings, handicrafts, valves, chemical industry, decoration, aerospace and other industries
Chinese national standard (CNS), Japanese industrial standard (JIS) and American Iron and Steel Institute (AISI) use three digits to represent different stainless steels,
Among them, 200 series are chromium nickel manganese austenitic stainless steel, 300 series are chromium nickel austenitic stainless steel, 400 series are chromium stainless steel (commonly known as stainless steel), including martensite and ferrite.
Misunderstanding of stainless steel:
magnetic
All austenitic stainless steel balls are usually non-magnetic; after cold working, some magnetism may be obvious. Standard: iso3506 GB / t3098.6 characteristics of magnetization capacity of various materials, also applicable to stainless steel. It is possible to be completely demagnetized only in a vacuum state. The measurement of the permeability of materials in magnetic field is relative to the permeability μ r of materials in vacuum. If μ R is close to 1, the material has low permeability.
In our daily life, we often encounter a very wrong way to judge whether stainless steel is made by magnet or not.
Stainless steel is divided into austenitic stainless steel and martensitic stainless steel, among which 201, 304, 316 and 316L are austenitic stainless steel, without magnetism; while 420, 430, 440 and 440C are martensitic stainless steel, commonly known as stainless steel in our country, why stainless steel is called because it is magnetic. But it's not that the ability of magnetic antirust is not good, let alone that it's iron. Among them, 440C and 440C are the leaders in stainless steel, which are called special steel. They have strong anti rust and corrosion resistance, and high hardness. They are called stainless steel bearing steel, widely used in high-end manufacturing industry.
Therefore, we can not judge whether it is stainless steel simply by magnet suction or not. So the 440 stainless steel ball is of course made of stainless steel, and it is also a very good stainless steel material.
Physical properties of stainless steel of various materials:
SUS304: it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot working performance such as stamping and bending, no heat treatment hardening phenomenon, no magnetism. It is widely used in household products (Class 1 and class 2 tableware), cabinets, indoor pipelines, water heaters, boilers, bathtubs, auto parts, medical appliances, building materials, chemicals, food industry, agriculture, ship parts.
SUS316: good corrosion resistance and high temperature strength, can be used under harsh conditions, good work hardening, non-magnetic. Suitable for sea water equipment, chemistry, dyestuff, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities;
SUS316L: as Mo (2-3%) is added to the steel, the corrosion resistance and high temperature strength are excellent; the carbon content of SUS316L is lower than SUS316, so the intergranular corrosion resistance is better than SUS316; the high temperature creep strength is high. Can be used in harsh conditions, good work hardening, non-magnetic. Suitable for sea water equipment, chemistry, dyestuff, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities
420 - "cutting tool grade" martensitic steel, similar to the earliest stainless steel such as Brinell high chromium steel. It is also used for surgical knives, which can be made very bright.
440 - high strength cutting tool steel, with slightly higher carbon content, can obtain higher yield strength after proper heat treatment, and the hardness can reach 58hrc, which is one of the hardest stainless steels. The most common application example is "razor blade". There are three common models: 440A, 440b, 440C, and 440f.
Carbon steel ball:
Carbon steel ball
Production material
Q235、AISI1010、AISI1015
Production specification
0.5mm-50mm
Production grade
G100-G1000
application area
Electronic, hardware, pulley, caster, simple bearing, omnidirectional ball, handicraft, box and bag bearing, chemical industry, bicycle bearing accessories, etc
hardness
Add fire HRC58-62; no fire hrc26 or so
Carbon steel ball classification:
1. According to the material, it is divided into low carbon steel ball, medium carbon steel ball and high carbon steel ball. The main material is 1010-101510451085, etc;
2. According to the hardness, it can be divided into soft ball and hard ball, that is to say, it can be judged according to whether heat treatment is needed: the hardness after heat treatment is increased, about hrc60-66, commonly known as hard ball in the industry; the hardness without heat treatment is relatively low, about HRC40-50, industry
