Specifications
Steel Grade:55SICR,60SI2MN,0Cr18Ni9
Standard:GB, JIS
Wire Gauge:2.0-12MM
Place of Origin:China (Mainland)
Type:Spring
Application:Steel Wire Rod
Alloy Or Not:Is Alloy
Special Use:Cold Heading Steel
Model Number:oli tempered
Packaging & Delivery
Packaging Details:inner plastic outer woven bags
Delivery Detail:prompt
oil tempered spring steel wire
high tensile strength according to customers request
Dia:0.3-7.0mm
Product Detail about spring steel wire
| spring steel wire |
| Diameter |
Grade B |
Grade C |
| 0.40 |
1910-2300 |
2250-2650 |
| 0.45 |
1860-2260 |
2200-2600 |
| 0.50 |
1860-2260 |
2200-2600 |
| 0.55 |
1810-2210 |
2150-2550 |
| 0.60 |
1760-2160 |
2110-2500 |
| 0.65 |
1760-2160 |
2110-2500 |
| 0.70 |
1710-2110 |
2060-2450 |
| 0.80 |
1710-2060 |
2010-2400 |
| 0.90 |
1710-2060 |
2010-2350 |
| 1.00 |
1660-2010 |
1960-2300 |
| 1.20 |
1620-1910 |
1910-2250 |
| 1.40 |
1620-1910 |
1860-2210 |
| 1.60 |
1570-1860 |
1810-2160 |
| 1.80 |
1520-1810 |
1760-2110 |
| 2.00 |
1470-1760 |
1710-2010 |
| 2.30 |
1410-1700 |
1640-1670 |
0Cr18Ni9
As a stainless steel heat-resistant steel, 0Cr18Ni9 is widely used in food equipment, general chemical equipment, atomic energy industrial equipment. Non-magnetic, good low temperature performance. Welded parts of 0Cr18Ni9 steel with thin cross-section size have sufficient intergranular corrosion resistance, excellent corrosion resistance in oxidizing acids (HNO3), and excellent corrosion resistance in alkali solution and most organic and inorganic acids, as well as in atmosphere, water and steam.
0Cr18Ni9 steel (AISI304) is austenitic stainless steel, is in the original invention of 18-8 austenitic stainless steel on the basis of the development and evolution of the steel grade, the steel is the main steel grade of stainless steel, its output accounts for about 30% of the total output of stainless steel. Because this steel has an austenitic structure, it cannot be strengthened by heat treatment, and can only be strengthened by cold deformation. The austenitic structure of steel gives it good cold and hot working properties, non-magnetic and good low temperature properties. Welded parts of 0Cr18Ni9 steel with thin cross-section size have sufficient intergranular corrosion resistance, excellent corrosion resistance in oxidizing acids (HNO3), and excellent corrosion resistance in alkali solution and most organic and inorganic acids, as well as in atmosphere, water and steam. ?
Peculiarity
Has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, stamping bending and other hot processing good, no heat treatment hardening phenomenon, non-magnetic.
Usage
Household goods, cabinets, indoor pipelines, water heaters, boilers, bathtubs, auto parts, medical equipment, building materials, chemicals, food industry, agriculture, ship parts.
Chemical composition
Carbon C: ≤0.08
Si: ≤1.00
Mn: ≤2.00
Sulfur S: ≤0.030
P: ≤0.045
Chromium Cr: 18.00 ~ 20.00
Nickel: 8.00 ~ 10.50
Mechanical property
Tensile strength σb (MPa) : ≥520
Conditional yield strength σ0.2 (MPa) : ≥205
Elongation δ5 (%) : ≥40
Section shrinkage ratio ψ (%) : ≥60
Chemical composition
Carbon C: ≤0.08
Si: ≤1.00
Mn: ≤2.00
Sulfur S: ≤0.030
P: ≤0.045
Chromium Cr: 18.00 ~ 20.00
Nickel: 8.00 ~ 10.50
|
Mechanical property
Tensile strength σb (MPa) : ≥520
Conditional yield strength σ0.2 (MPa) : ≥205
Elongation δ5 (%) : ≥40
Section shrinkage ratio ψ (%) : ≥60
Hardness: ≤187HBS; ≤90HRB; ≤200HV
Treatment technology
Heat treatment specification: Solution 1010 ~ 1150ºC fast cooling.
Metallographic structure: The structure is characterized by Austenitic type.Mechanical property
Tensile strength σb (MPa) : ≥520
Conditional yield strength σ0.2 (MPa) : ≥205
Elongation δ5 (%) : ≥40
Section shrinkage ratio ψ (%) : ≥60
Hardness: ≤187HBS; ≤90HRB; ≤200HV
Treatment technology
Heat treatment specification: Solution 1010 ~ 1150ºC fast cooling.
Metallographic structure: The structure is characterized by Austenitic type. |
|
|
|
|
Due to the high nickel content and the austenitic single-phase structure at room temperature, it has high corrosion resistance compared with Cr13 stainless steel, and has higher plasticity and toughness at low temperature, room temperature and high temperature, as well as better cold work forming and weldability. But the strength at room temperature is low, the tendency of intergranular corrosion and stress corrosion is large, and the machinability is poor. Austenite does not undergo phase change when heated, so it cannot be strengthened by heat treatment. Heat treatment can only be carried out to improve the corrosion resistance of steel:
1) Solution treatment; The purpose is to make the carbide fully dissolved and retained in the austenite at room temperature, so that the single phase austenite structure is obtained at room temperature, so that the steel has high corrosion resistance.
The heating temperature of solid solution treatment is generally high, between 1050-1100C, and is appropriately adjusted according to the carbon content. Due to the poor thermal conductivity of 18-8 stainless steel, it is not only necessary to heat it by preheating and then quenching, but also to hold it for a long time during solid solution treatment (quenching heating). In solution treatment, special attention should be paid to prevent carburization. Because carburization will increase the intergranular corrosion tendency of 18-8 steel. Cooling medium, generally using water. The structure after solution treatment is generally single-phase austenite, but for stainless steel containing titanium, niobium and molybdenum, especially when it is a casting, it also contains a small amount of ferrite. The hardness after solution treatment is generally about 135HBS.
2) de-stress annealing; In order to eliminate the residual stress after cold working, the treatment is carried out at a lower temperature. Generally heated to 250-425C, often used is 300-350C. For steel that does not contain titanium or niobium, it should not exceed 450C to avoid precipitation of chromium carbide and cause intergranular corrosion.
In order to eliminate the residual stress after welding and eliminate the sensitivity of the steel to stress corrosion, the treatment is generally carried out at a higher temperature. The heating temperature is generally not lower than 850C. Cooling method, steel containing titanium or niobium can be cooled directly in the air; For steel that does not contain titanium or niobium, it should be cooled to 500C by water and then cooled in air.
3) Stabilization treatment; In order to prevent titanium and niobium austenitic stainless steel in welding or solution treatment, due to the reduction of TiC and NbC caused by the reduction of intergranular corrosion resistance, it is necessary to heat this stainless steel to a certain temperature (the temperature makes the chromium carbide completely dissolved in austenite, while TiC and NbC are only partially dissolved) and then slow cooling. In the cooling process, the carbon in the steel is fully combined with titanium and niobium, and stable TiC and NbC are precipitated, without precipiting chromium carbides, thus eliminating the intergranular corrosion tendency of 18-8 austenitic stainless steel, this process is called stabilization treatment
Trade Information
Material: high carbon steel rod
Standard: ASTM,GB,DIN,JIS,AISI,BS
Certificate: BV, ISO
Term of Delivery: 7 to 35 days (it depends on your quantity)
Term of Payment: T/T; L/C or as your order
Port of Loading: Nantong or Shanghai
FAQ
1. How about your price?
Although we are brand-name products, but our prices are very favorable and competitive.
Customer from all over the world to purchase our products, because our best price.
2. How long is your warranty ?
Our Warranty is 12 month
3. What's your payment?
Our Payment could be
(1) 100% T/T
(2) 30% in advance, others before shipment.
(3)Advance, others letter of credit.
4. What's your beneficiary bank?
Our beneficiary bank have :
(1) one touch account
(2) Trade Assurance account
(3)Paypal
(4)Western Union
(5) China's domestic use RMB remittance
Specific accounts can be found on our website.
5. Could you special design and produce for you
Sure, we have all kinds of professional engineers,
Could design and produce special product according to customer requested.
Such as: special Size, special control, or OEM, etc.
6. Do you looking for Agent ?
Yes, we're looking for the agent all over the world, please contact us for further discussion.
Pictures Details:
Audited Supplier 
){kind=link}