1.8070
2014-10-21 08:54:54 Origin： Remark：0 Click：
Description 1.8070 Inventory, Round bar 1.8070 Stocklist, Ex-stock 1.8070 Suppliers Properties from Steelmaking, ESR melted, Blooming, Hot forging Rolling, Heat treat, Straightening, 100% Ultrasonic test, Cold working or Machined. Technical specification - DIN 10028-2. We also possess the advanced precision machining equipments for further processing. Please just let us know what you inquire.
TECHNICAL DATA SHEET - W-Nr 1.8070
MATERIAL CATEGORY - High temperature structural steel
PRODUCT DESCRIPTION
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
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 annealed condition.
Final heat treatment - heat treatment / QT
MATERIAL SPECIFICATIONS - DIN EN 10028-2 (2003), DIN 17755 (1983)
CHEMICAL COMPOSITION (Mass Weight - %)
C (％): 0.17 ~ 0.25
Si (％): 0.30 ~ 0.60
Mn (％): 0.30 ~ 0.60
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.20 ~ 1.50
Mo (％): 1.00 ~ 1.20
Ni (％): ≤ 0.60
V (％): 0.25 ~ 0.35
Si (％): 0.30 ~ 0.60
Mn (％): 0.30 ~ 0.60
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.20 ~ 1.50
Mo (％): 1.00 ~ 1.20
Ni (％): ≤ 0.60
V (％): 0.25 ~ 0.35
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃|annealing / normalizing: 650~740
Heat treatment temperature /℃|quenching: 900~950 Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
(≥)|σb/MPa: 690～830
(≥)|σs/MPa: 540
(≥)|δ5(%): 16
(≥)|AKV/J: 55
Heat treatment temperature /℃|annealing / normalizing: 650~740
Heat treatment temperature /℃|quenching: 900~950 Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
(≥)|σb/MPa: 690～830
(≥)|σs/MPa: 540
(≥)|δ5(%): 16
(≥)|AKV/J: 55
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE