1.2303
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Technical specifications of EN ISO 4957 - 2000 & DIN 17350 (1980) cold work tool steel, 1.2303 Chemical compositions, 1.2303 Mechanical properties from steelmaking, hot forging, hot rolling, heat treatment,Straightening, 100% Ultrasonic test, Cold worked or Machined. Technical specifications - ISO 4957 - 2000.
DIN 100CrMo5 & W-Nr 1.2303 - DATA SHEET
MATERIAL CATEGORY: Cold work alloy tool steel
TYPICAL APPLICATIONS
Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts
Air hammer tools
Piercing tools
PRODUCT DESCRIPTION
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the softened condition.
Final heat treatment - heat treatment / QT
MATERIAL SPECIFICATIONS
EN ISO 4957: 2000 , DIN 17350 (1980)
AVAILABLE SHAPES
Black bar /Flat bar /Square bar
Bright - peeled + polishing /centerless grinding / peeled + slidabrading
Forged - ring /tube /pipe casing /discs /shaft
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.90 ~ 1.10
Si (％): 0.15 ~ 0.30
Mn (％): 0.20 ~ 0.40
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.10 ~ 1.30
Mo (％): 0.20 ~ 0.40
V (％): —
Si (％): 0.15 ~ 0.30
Mn (％): 0.20 ~ 0.40
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.10 ~ 1.30
Mo (％): 0.20 ~ 0.40
V (％): —
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1000～850
Annealing temperature /℃: 700～730
Hardness after annealing ≤HBW: 230
Annealing temperature /℃: 700～730
Hardness after annealing ≤HBW: 230
Quenching temperature /℃: 820～860
Cooling medium: -
Common tempering temperature /℃: 400~600
Hardness after tempering at temperature HRC|100℃: 55
Hardness after tempering at temperature HRC|200℃: 54
Hardness after tempering at temperature HRC|300℃: 52
Hardness after tempering at temperature HRC|400℃: 49
Cooling medium: -
Common tempering temperature /℃: 400~600
Hardness after tempering at temperature HRC|100℃: 55
Hardness after tempering at temperature HRC|200℃: 54
Hardness after tempering at temperature HRC|300℃: 52
Hardness after tempering at temperature HRC|400℃: 49
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers. E-mail: sales@ccsteels.com
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 600mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Sheet steel / Steel strip: 0.5mm to 1200mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.
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