※ 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.
Air hammer 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 %) - DIN 31CrV2 / W-Nr 1.2208
※ MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tenperature /℃: 1050～850
Annealing temperature /℃: 680～720
Hardness after annealing ≤HBW: 220
Quenching temperature /℃: 830～860
Cooling medium: water / water
Common tempering temperature /℃: 180~250
Hardness after tempering at temperature HRC|100℃: 52
Hardness after tempering at temperature HRC|200℃: 50
Hardness after tempering at temperature HRC|300℃: 47
Hardness after tempering at temperature HRC|400℃: 43
INVENTORY - Forged bar
Diameter: 100mm, 80.4mm, 90mm, 125mm
※ TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers.
Product engineer: Mr. Chen, Mr.Jiang
Tel: 86-816-3307163, 365 3300
※ PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm to 3000mm
Square bar / Flat bar: 3mm to 2000mm
Plate / Sheet steel / Steel strip: 0.1mm to 2500mm
Width: 8mm to 2500mm
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.