April 14 Ningbo Steel Market Price Quotes

Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Week, General Line Φ6.5mm Q235 Weifang 5160 20 10 160 High Line Φ6.5mm Q235 Beitai 5200 10 0 150 High Line Φ6.5mm Q235 Fushun 5200 20 0 150 High Line Φ8mm Q335 Yong Steel 5350 50 90 170 Rebar Φ10mm HRB335 Sha Steel 5200 10 10 170 Rebar Φ12mm HRB335 Sha Steel 5100 10 10 140 Rebar Φ16-25mm HRB335 Sha Steel 5060 0 0 130 Rebar Φ10mm HRB335 Buri 5170 0 0 130 Rebar Φ12mm HRB335 Borri 5100 0 0 130 Rebar Φ16-25mm HRB335 Borri 5070 0 0 130 Rebar Φ16-25mm HRB335 Jinan Steel 4950 0 30 70 Rebar Φ16-25mm HRB335 Xicheng 4980 0 0 80 Class III Rebar Φ16-25mm HRB400 Jinan Iron and Steel 5000 0 0 20 Hot rolled coil 2.75mm*1250*C SS400 Bead steel 5620 0 0 0 Hot rolled coil 3.0mm*1250*C SS400 Angang 5440 0 0 20 Hot rolled coil 3.0mm*1250 *C Q235B Shagang 5440 0 0 20 Hot rolled coil 3.0mm*1250*C Q235B Handan 5440 0 0 20 Hot rolled coil 5.5mm*1250*C Q235 Shagang 5420 0 0 220 Hot rolled coil 7.5mm*1500*C Q235B Package / Angang 5420 0 0 220 Hot rolled coil 9.5-11.5*1500*C Q235B package/ Angang 5420 0 0 220 Cold rolled plate 1.0mm*1250*2000 ST12 Angang 6580 0 30 30 Cold rolled steel plate 1.5mm*1250*2500 ST12 Angang 6580 0 30 30 Cold rolled plate 1.0mm*1250*2500 ST12 Benxi Steel 6550 0 30 50 Cold rolled plate 1.5mm*1250*2500 ST12 Ben Steel 6550 0 30 50 Cold rolled coil 1.0mm*1250*C SPCC Masteel 6520 0 40 40 Cold rolled coil 1.2mm*1250*C SPCC Masteel 6520 0 40 40 Cold rolled coil 1.5mm*1250*C SPCC Masteel 6520 0 40 40 Strip 2.5*355 Q195L Jilin Jianlong 5210 0 90 130 Strip 2.5*183 Q195L Tangshan Jianlong 5190 0 100 140 Strip 2.5*232 Q235 Tangshan Guofeng 5200 0 100 130 Strip 2.5*355 Q235 Tangshan Stainless 5210 0 90 140 Strip 3.75*685 Q235 Beitai 5290 0 140 140 Strip 4.75*685 Q235 Beitai 5290 0 140 140 Strip 5.75*685 Q235 Beitai 5290 0 140 140 Shipbuilding 8mm*1800*8000 CCSB Jinan Steel 6670 0 50 50 Shipbuilding Plate 10mm*1800*8000 CCSB Jinan Steel 6570 0 50 50 Shipbuilding Plate 20mm*1800*8000 CCSB Jinan Steel 6350 0 170 170 Puzhong Plate 8mm Q235 New Steel 6350 0 0 200 Puzhong Plate 10mm Q235 New Steel 6250 0 0 200 Plate 16-20mm Q235 New Steel 6150 0 0 250 Puzhong Plate 16-20mm Q235 Nangang 6150 0 0 250 Color Coil 0.47*1000*C SGCC Huayu 7350 0 150 150 Galvanized Roll 1.0mm*1250*C ST02Z Benxi Steel 6600 0 50 50 Galvanized coil 1.5mm*1250*C ST02Z Benxi Steel 6600 0 50 50 H Steel 200*200 Q235B Laiwu Steel 5400 0 0 -150 I-beam 25# Q235 Wuhan Iron and Steel 5250 0 50 50 I-beam 25# Q235 Laiwu Steel 5250 0 50 50 Channel Steel 16# Q235 Masteel 5450 0 0 0 Angle Steel 50*5mm Q235 Steel 5400 0 0 -50 Steel Angle 50*5mm Q235 Ma Steel 5500 0 0 0

"Gravity Die Casting. A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling cn be controlled by tilting the die."

Gravity Die Casting

Sometimes referred to as Permanent Mould, GDC is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, Zinc and Copper Base alloys.

The process differs from HPDC in that Gravity- rather than high pressure- is used to fill the mould with the liquid alloy.

GDC is suited to medium to high volumes products and typically parts are of a heavier sections than HPDC, but thinner sections than sand casting.

There are three key stages in the process.

  1. The heated mould [Die or Tool] is coated with a die release agent. The release agent spray also has a secondary function in that it aids cooling of the mould face after the previous part has been removed from the die.
  2. Molten metal is poured into channels in the tool to allow the material to fill all the extremities of the mould cavity. The metal is either hand poured using steel ladles or dosed using mechanical methods. Typically, there is a mould [down sprue" that allows the alloy to enter the mould cavity from the lower part of the die, reducing the formation of turbulence and subsequent porosity and inclusions in the finished part.
  3. Once the part has cooled sufficiently, the die is opened, either manually or utilising mechanical methods.

Advantages

  • Good dimensional accuracy
  • Smoother cast surface finish than sand casting
  • Improved mechanical properties compared to sand casting
  • Thinner walls can be cast compared to sand casting
  • Reverse draft internal pockets and forms can be cast in using preformed sand core inserts
  • Steel pins and inserts can be cast in to the part
  • Faster production times compared to other processes.
  • Once the tolling is proven, the product quality is very repeatable.
  • Outsourced Tooling setup costs can be lower than sand casting.

Gravity Casting Parts

Gravity Casting Parts,Aluminum Alloy Gravity Casting Parts,Aluminum Gravity Die Casting Parts,Gravity Casting Aluminum Parts

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