Specification
1.High carton high chromium tool steel.
2.High wear resistance and toughness.
3.Offers a measure of corrosion resistar when polished.
4.Alternative to oil hardening tool steel.
Chemical composition
NAME C Si Mn P S Cr V
1.2842/O2 0.85~0.95 ,0.40 1.70~2.00 ,0.030 ,0.030 ---- 0.10~0.25
Similar grade
GB AISI/ASTM DIN JIS
9Mn2V O2 1.2842 SKS31
PropertiesConditions
T (°C)Treatment
Density7.66 x 1000 kg/m325-
Mechanical Properties
The mechanical properties of O2 steels are tabulated below.
Physical Properties
Properties T (°C)Treatment
Density 7.66 x 1000 kg/m3 25
Mechanical Properties
Properties T (°C)Treatment
Poisson's ratio 0.27-0.30 25-
Elastic modulus 27557-30458 ksi 25
Thermal Properties
Properties T (°C) Treatment
Thermal expansion 11.2 x 10-6/ºC 20-100
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Buyer: Aluminium ( ingots, t bars, sows, rods), copper (cathodes, cakes, billets, ingots, rods), lead (ingots), nickel (cathodes both cut and uncut briquettes, pellets, discs, etc.), tin (ingots, etc.), zinc (ingots both regular size and jumbos), steel billets (all types including crc, hrc, hdgc, plates, sheets), concentrates and ores for above items including bauxite, manganese, clinker and iron ores etc), scraps of above items including hms 1&2 and steel scraps
Product Name Precision Steel Pipe Standard DIN2391 EN10305-1 ASTMA179 ASTM A192 ASTM A519 Material SAE1010,SAE1020,#10,#20,#45,304,316 Outer diameter 8MM-50MM Wall thickness 0.5-50.0MM Length fixed(3-12m) or customized Technology High precision Cold drawn/ Cold rolled Heat treatment BK/BKS/NBK Advantages Short delivery time Quality assurance Competitive price
Product Name Precision Steel Pipe Standard DIN2391 EN10305-1 ASTMA179 ASTM A192 ASTM A519 Material SAE1010,SAE1020,#10,#20,#45,304,316 Outer diameter 8MM-50MM Wall thickness 0.5-50.0MM Length fixed(3-12m) or customized Technology High precision Cold drawn/ Cold rolled Heat treatment BK/BKS/NBK Advantages Short delivery time Quality assurance Competitive price
High Precision Steel Pipe for Gas spring Cylinder Type:Seamless and Welded Steel Tube Roughness 0.1-0.8ra Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020 Surface:Black/bright Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101 Size :OD 3mm-140mm Thickness 0.5-20mm Processing :Cold rolled /cold drawn 1. BK (+C) No heat treatment after last cold forming process. 2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing) 3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed. 4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere. 5. NBK (+N) After the final cold forming process the tubes are annealed above the upper Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request. Usage: Gas Spring Cylinder
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Electro galvanized wire BWG20 , wire diameter: 0.93-0.95 mm.