Performance characteristics:
Vacuum deairing with fine steel, it is easy for cutting after quenching , high hardness, good abrasion resistance , dimension stability and minimal distortion.
Applications:
It is suitable for cutting tools, such as broach, filament hammer and gauge and complex shape of cold mould, plastic mould, precise screw, etc.
Chemical Composition (%):
C 0.85¡«0.95 Si 0.40 Mn 0.90¡«1.20
S 0.030 P 0.030 Cr 0.50¡«0.80
Ni 0.25 Cu 0.30 W 0.70¡«1.2
Forging:
Oil quenching cold die has crack sensitivity,so it should not be quickly heated,it had better for a preheating in 650-750 centigrade .The temperature of forging is 1130-1150 centigrade, eventually temperature should be more than 800-850 centigrade, steel ingot take upper limit temperature.while blank forging take lower temperature.
Commodity:Sodium persulfate
Molecular Formula : Na2S2O8
Molecular weight : 238.13
Description
Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Transportation
Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505
Water hazards class 1(slight water hazard)
All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.
Package
(1) In 25kgs net multiple paper bags with one PE bag inner
(2) In 25kgs net PE bags
(3) In 25kgs net woven bags with two PE bags inner
(4) In 1000kgs net big woven bags with one PE bag inner
The above package is also with a pallet 1000kgs each.
Storage
NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect.
Application
Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc.
Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors;
cleaning and etching of printed circuits),activation of copper and aluminium surfaces.
Cosmetics : Essential component of bleaching formulations.
Paper : modification of starch,repulping of wet - strength paper.
Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans).
Others :
- Chemical synthesis
- Water treatment(decontamination)
- Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg)
- Disinfectant
ITEMS SPECIFICATIONS
Appearance white crystalline salt
Assay 99.0% w/w min
Active oxygen 6.65% w/w min
Chloride and chlorate(as CL) 0.005% w/w max
Ammonia (NH4) 0.05% w/w max
Manganese(Mn) 0.0001% w/w max
Iron(Fe) 0.001% w/w max
Heavy metals(as Pb) 0.001% w/w max
Moisture 0.05% w/w max
Decomposition of the product as supplied at above 65C
Recommended storage temperature Normal Temperature
Storage stability as from date of delivery 12 months
We can supply met coal (hi and med vol) as requested, need to start with 30,000 tons per
month and can work up to 110,000 tons per month; specs as outlined below:
Tonnage-25-30k tons per month
Spec: Dry-Basis
Ash-8-9.5
Sulfur-1-1.1
BTU-13,000-14,000
Vol- 26 to 32(M-H)
FSI- 9
Tonnage-1st Month-25-30k
2ndMonth-35-40k & 40k per month for the remainder of contract.
Spec: Dry-Basis
Ash-7.5-8.5
Sulfur-0.5%
BTU-13,500-14000
Vol-32-35(H)
FSI-7-8.5
Three year contract, fixed price for first two years; adjusted to market in 3rd year, or as negotiated. This is good coal and with a two year fixed price contract it should be very attractive. Buyer can inspect coal on site and contract directly with producer if required.
Producer has 20+ years in business and sells to some of the largest US power and steel companies.
can supply REBARS as per below: -Size: 6mm to 50 mm -Length: 6 meters up to 16 meters -Packing: Once folded bundles available.
hese corrugated steel bars are used as tension devices in the construction of concrete slabs and walls, as well as decorative/ornamental grille work. When used in concrete constructions, these help to strengthen and hold concrete when it is compressed, and come in a wide variety of sizes to fit various building construction needs. At ARC. AVAILABLE IN 3/8 (10mm), 5/8 (16mm), (20mm), (12mm), 1 (25mm) and 1 (32mm)
9287 O1 1 2510 9Crwmn Cold Work Tool Steel Suppliers
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