1.7264
2015-01-27 11:02:58   Origin：   Remark：0 Click：

Official Test Certificate: issued by TUV - SGS -  BV
TECHNICAL DATASHEET - DIN 20CrMo5 & W-Nr 1.7264
MATERIAL CATEGORY - Carburizing structural steel
MATERIAL SPECIFICATIONS - DIN EN 10084 (1998), DIN 17210 (1986)
CHEMICAL COMPOSITION (Mass weight - %)
C (％):      0.18 ~  0.23
Si (％):      0.15 ~ 0.35
Mn (％):    0.90 ~ 1.20
P (％)≤:    0.035
S (％)≤:    0.035
Cr (％):     1.10 ~ 1.40
Mo (％):    0.20 ~ 0.30
Ni (％):     -
Other(％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃:   1050～850
Heat treatment temperature /℃|annealing:      680～700
Heat treatment temperature /℃|carburizing:    840～880
Heat treatment temperature /℃|quenching  (Center):   820～850
Heat treatment temperature /℃|quenching  (Surface):  810~830 Oil
Heat treatment temperature /℃|tempering:    150～180
Hardness after annealing HBS≤:    207
Size /mm:    φ11
After surface hardening |σb/MPa:    1080~1380
After surface hardening |σs≥/MPa:   735
After surface hardening |δ5(％)≥:    7
After surface hardening |ψ(％)≥:      30
After surface hardening |AKV/J:       27
Size /mm:    φ30
After surface hardening |σb/MPa:  980~1270
After surface hardening |σs≥/MPa:   685
After surface hardening |δ5(％)≥:    8
After surface hardening |ψ(％)≥:     35
After surface hardening |AKV/J:   27
Size /mm:    φ63
After surface hardening |σb/MPa: 780 ~ 1080
After surface hardening |σs≥/MPa:   540
After surface hardening |δ5(％)≥:    10
After surface hardening |ψ(％)≥:     35
After surface hardening |AKV/J:   -      
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com