Casting  and Forging Machining

 　
　 We have gained abundant experience in processes such as sand casting, investment casting, forging, welding stamping on material covering iron, stainless steel, carbon steel, steel alloy, aluminum ,alloy steel.3D Model Engineering Analysis, CNC Lathe Tooling and Machining. We have many years’experience in the supply of steel parts and forgings for automotive industry, investment and  sand casting for  energy industry and water works pipeline 　
　 grey cast iron
Gussteile Casting

Gussteile Casting
. Material:
Gray cast iron: EN-GJL-200, EN-GJL-250, EN-GJL-200, EN-GJL-200		 　
　 　 　
　 　 　
　
DUCTILE IRON MANHOLE COVERS - EN 124
　　DUCTILE IRON GRATINGS - EN 124
　　DUCTILE IRON PIPE FITTINGS-EN 545
　　FITTINGS FOR PE/UPVC PIPELINE -EN 14525 EN 14842
　　OTHERS：VALVE BODY， MOTOR BODY， STEP IRON		 　
　 　 　
　
Grey Iron Casting

Grey cast iron also known as flake graphite cast iron, is a type of casting iron in which most of the carbon is present as flake graphite .The propertises of grey cast iron depends on the distribution, sizs and amount of graphite flakes, and the matrix structure. These factorys are in turn, influenced mainly by the manufacturing conditions, chemical composition, solidification time and rate of cooling in he mould. Grey cast iron exhibit low to moderate strength, low modulus of elasticity, low notch sensitiviy, high thermal conductivity, moderate resistance of thermal stock , and outstanding castability.
EQUIVALENT STANDARDS TECHNICAL SPECIFICATIONS
DIN EN 1561 Germany France England Netherlands Sweden USA Hardness Tensile Strength Proof
Stress Elongation Machinability Microst-ructure 1:100 1:500
DIN 1691 NF BS NEN MNC ASTM A48 HB 30 Rm N/mm?/font> Rp0,1 N/mm?/font> A %
EN-GJL-150 GG-15 Ft 15 D Grade 150 GG 15 01 15-00 20 B / 25 B 150/190 150-250 98-165 0,8-0,3 very good Perlit, groblamellar
EN-GJL-200 GG-20 Ft 20 d Grade 180 / Grade 220 GG 20 01 20-00 25 B / 30 B 170/210 200-300 130-195 0,8-0,3 very good Perlit, roughlamellar
EN-GJL-250 GG-25 Ft 25 D Grade 220 /
Grade 260 GG 25 01 25-00 35 B / 40 B 180/230 250-350 165-228 0,8-0,3 very good Perlit,
finelamella		 　
　 　 　
　

  • Grauguß:

    •  laut DIN: GG15, GG20, GG25, GG30

    • laut EN: EN-GJL-150, EN-GJL-200, EN-GJL-250, EN-GJL-300

    •  laut STN: 422415, 422420, 422425, 422430, 422456

  • Sphäroguß:

    • laut DIN: GGG40, GGG50, GGG60, GGG70

    • laut EN: EN-GJS-400, EN-GJS-500, EN-GJS-600, EN-GJS-700

    • laut STN: 422304, 422305, 422306, 422307

  • legiertes und spezielles Gußeisen mit Zusätzen Chrom, Nickel und Molybdän

  • Aluminiumguß laut DIN 226D, 331

　

 　
　 　 　
　

Gray cast iron

Standard mark: SL Croatia (HRN)
　 GG Germany ( DIN )
　 EN-GJL Europe (EN)

Grey cast iron is alloy of iron and carbon. It also contains silicon, manganese, sulphur and phosphorus. Carbon is extracted in the form of graphite lamellas.

Quality and mechanical characteristics depend on shape, arrangement and size of extracted graphite lamellas and on structure of metal basis. Tensile strenght of grey cast iron is increasing with refining of graphite lamellas. Metal basis structure of grey cast iron is pearlitic, pearlitic-ferritic or ferritic. If there is more pearlitic strucure in metal basis, tensile strenght and hardness is higher. It absorbes vibrations and can be well machined.

Structure of grey cast iron is affected by chemical composition and speed of cooling of casting. Mechanical characteristics also depend on wall thickness of casting, if the wall is thicker, the tensile strenght is relatively lower.
　

 

In RS METALI we produce grey cast iron in following quality:

　

MARK

TENSILE STRENGHT

N/mm 2

HARDNESS

HB
DIN EN 1561
DIN 1691
HRN
EN-GJL-100
GG 10
SL 10

100-200

<150

EN-GJL-150
GG 15
SL 15

150-250

<170

EN-GJL-200
GG 20
SL 20

200-260

180-240

EN-GJL-250
GG 25
SL 25

250-300

200-260

EN-GJL-300
GG 30
SL 30

300-380

210-270

 

　

 　
　 　 　
　

Materials

Olsberg produces grey iron according to the DIN EN 1561 and ductile

iron according to the DIN EN 1563.

Material is able to be produced to the following specifications:


Greycast iron

　

Specification DIN EN 1561
Specification DIN EN 1691
(old nommenclature)
　
Short form Number Short form Number
EN-GJL-150 EN-JL 1020 GG-15 0.6015
EN-GJL-200 EN-JL 1030 GG-20 0.6020
EN-GJL-250 EN-JL 1040 GG-25 0.6025
EN-GJL-300 EN-JL 1050 GG-30 0.6030

　

Cast iron produced to the EN-GJL-150 specification is only produced at

our Königshütte works. The only additional specification produced at our

Königshütte works is EN-GJL-200.

　

Ductile iron


　
Specification DIN EN 1563
Specification DIN EN 1693-1
alternative DIN 1693-2
(old nommenclature)
Short form Number Short form Number
EN-GJS-400-18U-LT EN-JS 1049 GGG-40.3 0.7043
EN-GJS-400-18U-RT EN-JS 1059 - -
EN-GJS-400-18U EN-JS 1062 - -
EN-GJS-400-15U EN-JS 1072 GGG-40 0.7040
EN-GJS-500-7U EN-JS 1082 GGG-50 0.7050
EN-GJS-600-3U EN-JS 1092 GGG-60 0.7060
EN-GJS-700-2U EN-JS 1102 GGG-70 0.7070

　

Ductile iron is produced solely in our Olsberg works.