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MATERIAL SPECIFICATIONS - EN ISO 4957: 2000, DIN 17350 or by agreement
MELTING PROCESS - EAF + VD + LF / BEF + ESR
H S CODE For Customs - 7228 4000 / 7228 5000 / 7228 6000
Official Test Certificate - issued by TUV - SGS - BV
MAIN CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.83 ~ 0.88
Silicon, Si (％): 0.30 ~ 0.50
Manganese, Mn (％): 0.40 ~ 0.60
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): 1.80 ~ 2.00
Nickel, Ni (％): 0.25 ~ 0.35
Molybdenum, Mo (%): 0.20 ~ 0.25
MECHANICAL PROPERTIES - HEAT TREATMENT CYCLE
Hot working tenperature /℃: 1050 ~ 850
Annealing temperature /℃: 690 ~ 700
Hardness after annealing ≤HBW: 235
Quenching temperature /℃: 840 ~ 870
Cooling medium: air or oil
Common tempering temperature /℃: 300 ~ 400
Hardening value after tempering at temperature /MPa | 100℃:
Hardening value after tempering at temperature /MPa | 200℃: -
Hardening value after tempering at temperature /MPa | 300℃: -
Hardening value after tempering at temperature /MPa | 400℃: 1550
Cutting tools. Mechanical parts, Air hammer tools. Piercing tools.
ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
Round bar (Diameter): 5.5 to 450mm
Steel strip: THK0.15 ~ 2.5 X W5.0 ~ 200mm
Flat bar (Thickness X width): 10 ~ 300 X 15 ~ 600mm
Length: Fixed length or random length or based on the customer's special requirement.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:email@example.com.