Steel price index early warning report
Red wine is bad for you, Britain say experts
Red wine is bad for your health, experts reveal in a new report.
In a u-turn, Government experts have dismissed the supposed health benefits of wine and are set to rewrite the rule book on the nation’s alcohol consumption, according to reports.
A landmark report by Chief Medical Officer Dame Sally Davies will destroy the long-held belief that red wine can cut the risk of cancer, heart disease and memory loss when drunk in moderation, the Sun reported.
In the first overhaul of alcohol guidelines for two decades, doctors will reportedly warn that there is no “safe” level of alcohol consumption and drinking just a small amount may in fact increase the risk of some cancers.
A source said: “The report will send a clear signal that the dangers of drinking are far more than previously thought.”
The review was launched in 2012 and its findings are expected to reflect the latest research that links even occasional alcohol consumption to health problems in later life.
The Government currently advises men do not drink more than three to four units per day – up to 21 units or less per week – while women should drink no more than two to three units a day, or 14 units per week.
Under the new guidelines the gender difference will be thrown out and drinkers will be to keep off the booze for at least two days a week in order to allow their livers to recover.
A recent study by University College London found patients who gave up for four weeks saw benefits for their liver function, blood pressure and cholesterol levels and were also at lower risk of developing diabetes and liver disease.
And a report by the National Institute for Health and Clinical Excellence (Nice) advised middle-aged people there is “no safe level of alcohol consumption”.
It says the same health benefits can be more easily achieved with exercise and healthy eating.
So now don’t buy Red Wine. Buy Steel is better from OTAI SPECIAL STEEL. 😀
2015 China Steel Market Review & 2016 China Steel Market Forecast
Now Chinese Steel industry are in the period of transformation. 2015 Most Chinese Steel company and Factory were Huge losses. More than 30% Small Steel produce manufacture company close down.
SKD11/ Cr12MoV/ D2 steel plate stock bottom price sale
SKD11/ Cr12MoV/ D2 steel plate stock bottom price sale
125×510 1pcs
130×510 1pcs
135×510 1pcs
140×510 1pcs
150×510 1pcs
165×510 1pcs
175×510 1pcs
190×510 1pcs
200×510 1pcs
210×510 1pcs
230×510 1pcs
250×510 1pcs
length about 3500mm
by SEP 1921 -84 C/c ultrasonic inspection
if you have any needs, pls tell me as soon as possible. because this is bottom price sale
Otai special steel 2015-12-04 stock list.
Otai special steel 2015-12-04 stock list.
AISI P20 , 1.2312, 1.2311,Nak80 steel stock list as photos. any interested, pls contact to johnlong@otaisteel.com
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Address: NO.3 XianSha Industial Zone ,GaoBu town,DongGuan City, GuangDong Province, China. | |||||||||||||||||||||
Tel:+86-0769-88704912/88705839 FAX: +86-0769-88705839 | |||||||||||||||||||||
Email: jack@otaisteel.com | |||||||||||||||||||||
Stock List | |||||||||||||||||||||
Grade | AISI 4140,Hot rolled , Black surface.normalizing | ||||||||||||||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | ||||||||||||
0.38~ 0.43 |
0.15~ 0.35 |
0.75~ 1.00 |
0.80~ 1.10 |
0.15~ 0.25 |
/ | 0.035 | 0.04 | / | |||||||||||||
14×185 | 25×195 | 26×180 | 30×170 | ||||||||||||||||||
30×180 | 35×180 | 40×290 | 65×155 | ||||||||||||||||||
80×160 | 90×250 | ||||||||||||||||||||
Grade | DIN 1.2311,Hot rolled , Black surface.normalizing | ||||||||||||||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | ||||||||||||
0.35~0.45 | 0.20~0.40 | 1.30~1.60 | 1.80~2.10 | 0.15~0.25 | / | 0.035 | 0.035 | / | |||||||||||||
36x315x1130 | 56x590x400 | 86x180x1040 | 86x730x1050 | ||||||||||||||||||
860x610x850 | 86x710x605 | 100x510x1370 | 100x510x840 | ||||||||||||||||||
125x310x720 | 125x310x760 | 135x450x610 | 135x460x600 | ||||||||||||||||||
135x460x610 | 245x805x910 | 240x800x910 | 245x480x960 | ||||||||||||||||||
Grade | DIN 1.2312,Hot rolled , Black surface.normalizing | ||||||||||||||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | ||||||||||||
0.35~0.45 | 0.30~0.50 | 1.40~1.60 | 1.80~2.00 | 0.15~0.25 | / | 0.03 | 0.05~ 0.10 |
/ | |||||||||||||
16x225x3000~4000mm | 16x230x3000~4000mm | 25x225x3000~4000mm | 25x250x3000~4000mm | ||||||||||||||||||
Grade | AISI P20,Hot rolled , Black surface.normalizing | ||||||||||||||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | ||||||||||||
0.28~0.40 | 0.20~0.80 | 0.60~1.00 | 1.40~2.00 | 0.30~0.55 | / | 0.03 | 0.03 | / | |||||||||||||
46x160x1060 | 56x600x1130 | 56x610x940 | 80x610x1470 | ||||||||||||||||||
86x410x820 | 86x570x420 | 41x410x1100 | 46x410x1700 | ||||||||||||||||||
61x410x1410 | 100x410x1050 | ||||||||||||||||||||
Grade | Pre-hard NAK80,Hot rolled , Black surface.Q+T, 38~42HRC | ||||||||||||||||||||
41x250x340 | 46x300x435 | 46x310x1900 | 155x495x1430 | ||||||||||||||||||
Grade | Pre-hard,738H,Hot rolled , Black surface.Q+T,23~37HRC | ||||||||||||||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | ||||||||||||
0.35~0.45 | 0.20~0.40 | 1.30~1.60 | 1.80~2.10 | 0.15~0.25 | 0.90~1.20 | 0.035 | 0.035 | / | |||||||||||||
135x655x1130 | 140x655x1040 |
P20 tool steel stock list
P20 tool steel stock list, any interested, pls contact to jack@otaisteel.com;
Date: 2015-12-03
Stock promotion List | ||||||||||
Grade | AISI P20,Hot rolled , Black surface.HRC 28-32 | |||||||||
Chemical Composition (For reference only) |
C | Si | Mn | Cr | Mo | Ni | P≤ | S≤ | Others | |
0.28~0.40 | 0.20~0.80 | 0.60~1.00 | 1.40~2.00 | 0.30~0.55 | / | 0.03 | 0.03 | / | ||
13x520x2200 | 20x520x2200 | 25x540x2200 | 26x530x2200 | |||||||
31x750x2200 | 31x520x2200 | 35x480x2200 | 35x840x2200 | |||||||
36x750x2200 | 36x310x2200 | 360x430x2200 | 45x620x2200 | |||||||
45x420x2200 | 70x430x2200 | 76x630x2200 |
China Steel market news-2015-11-20-Cold rolled steel price rising about USD 4.5 Per Ton
China Steel market news-2015-11-20
Shanghai market volume manufacture price move now, the anshan iron and steel resources generally rise 4.5 USD/ton, benxi steel posco resources fell USD 1.2/ton, clinch a deal the overall weak still. Throughout the entire market, cold-rolled resource is still in the relatively normal level, inventory pressure. Demand side, has entered the off-season, and money is tight, insufficient utilization industries such as cars, home appliances and shutdown phenomenon is relatively common, shrinking consumer demand for cold rolling, so as to make the inventory consumption is slow, sales businesses face high pressure. Entering late, means that a new round of order cycle, and merchants to steel mill order, will take cash price model, which to a large extent can aggravate the decline in the price.
What is DF2 Steel?
1, What is DF2 steel?
DF2 steel is a quenching oil cold work tool steel.
DF2 steel ‘s Chemical composition as below:
C | Cr | Mn | W | V |
0.95 | 0.6 | 1.2 | 0.6 | 0.1 |
2, Equivalent of DF2 steel
it is equivalent with AISI O1, GB 9CrWMn, JIS SKS3, DIN 100MnCrW4, W-Nr 1.2510 oil steel.
3, Delvery condition of DF2:
① Soft annealed to max. 230 HB.
② Colour code:Colour code
4,Applications of DF2 steel
① For make Tool: BLANKING, CUTTING, FORMING AND OTHER APPLICATIONS
5, PHYSICAL PROPERTIES
When Hardened and tempered to 62 HRC. DF2 physical properties as below:
Temperature | 20 C° | 200°C | 400°C |
Density kg/m³ |
7 850 | 7 750 | 7 700 |
Modulus of elasticity MPa |
190 000 | 185 000 | 170 000 |
Coefficient of thermal expansion per °C from 20°C |
– | 12.6 x 10-6 | 13.1 x 10-6 |
Thermal conductivity W/m °C |
32 | 33 | 34 |
Thermal conductivity W/m °C |
460 | – | – |
6,Heat treatment of DF2 steel
① SOFT ANNEALING
Protect the steel and heat through to 780°C. Cool in the furnace at 15°C per hour to 650°C, then freely in air
② STRESS RELIEVING
After rough machining, the tool should be heated through to 650°C, holding time 2 hours. Cool slowly to 500°C, then freely in air.
③ HARDENING
Preheating temperature: 600 – 700°C Austenitising temperature: 790 – 850°C
④ QUENCHING MEDIA
in the Warm oil,about 80°C;
Martempering bath or fluidised bed at 180 – 225°C, then cooling in air;
Pls Note: On Temper the tool as soon as its temperature reaches 50 – 70°C.
7, Welding of DF2 Steel
Normal we do not advice make the welding for tool steel. but if needs. Must be take some proper precautions with regards to joint preparation, filler
material selection, pre-heating, welding procedure and postweld heat treatment to ensure good welding results. If the tool is to be polished or photo-etched, it is necessary to work with an electrode type of matching composition.
8, Equivalent material Chemical composition compare of DF2 steel
Grade NO. | C | Mn | Cr | W | V |
AIS O1 | 0.85~1.00 | 1.00~1.40 | 0.40~0.60 | 0.40~0.60 | ≤0.30 |
WN-r 1.2510 /Din 100MnCrW4 |
0.90~1.05 | 1.00~1.20 | 0.50~0.70 | 0.50~0.70 | 0.05~0.15 |
JIS SKS 3 | 0.90~1.00 | 0.90~1.20 | 0.50~1.00 | 0.50~1.00 | – |
GB 9CrWmN | 0.85~0.95 | 0.90~1.20 | 0.50~0.80 | 0.50~0.80 | – |
China Otai Special Steel is China special steel stockholders and suppliers. Otai Special Steel are suppliers of DF2 tool steel on steel round bar, diameters round bar and plate, and also can cut to your requirements products size and shape. and we also provide the steel surface machining, milling. bandsaw cutting, flame cut steel, Ground bar, plasma cutsteel, precision-ground-plate, Lumsden Ground Plate.
Contact us
If have any help and inquiry, pls feel free contact us by email or telphone or FAX.
Email (English): jack@otaisteel.com
Email (Español): jack@otaisteel.com
TEL: 0086-769-33232622
FAX: 0086-769-88705839
About AISI 4340 steel is a Q+T alloy Structural steel usage | Application
About 4340 steel
AISI 4340 steel is a Q+T alloy Structural steel.
4340 is used for engineering structural, Used as require good toughness, high strength, as well as the important conditioning of large size, heavy machinery such as high load of axial, turbine shaft, larger than 250 mm in diameter of helicopter rotor shaft, turbojet engine turbine shaft, blade, high load of transmission parts, fasteners of the crankshaft. Gear, etc.; Can also be used for operating temperature over 400 ℃ of rotor shaft and blade, etc.; And after nitriding processing can also be used to make. Any steel problem and enquiry, pls feel free contact us.
Email: jack@otaisteel.com
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