1.1249
2018-04-01 15:34:56
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Steel Grade: CF70(C70G)| Material No.: 1.1249
CHEMICAL COMPOSITION(1.1249):
C(％) : 0.68～0.75
Si(％) : 0.15～0.35
Mn(％) : 0.20～0.35
P(％) : 0.025
S(％) : 0.035
Cr(％) : —
Mo(％): —
Other(％) : N0.007
HARDNESS AND HEAT TREATMENT (1.1249):
Hot Working/℃: 1000～800
Annealing/℃: 650～700
Normalizing/℃: 850～880
Quench/℃: 790～820Water
Temper/℃: 550～660
Surface Hardening/℃: 780～810
Surface Hardness HRC: 60～64
INSIDE MECHANICAL PROPERTIES (1.1249):
Size/mm: ≤16
Tensile Strength|σb/MPa: 780～930
Yield Strength|σs≥/MPa: 560
Extensibility|δ5(％)≥: 11
Reduction of Area|ψ(％)≥: 25
Ballistic|αkv/J①: 21
Remark(1.1249):
①, The test sample is according to DVM-V.
②, It is mechanical properties after temper and quench in this table.
③, This standard is DIN 17211(1987).
Please find the PDF for 1.1249
Introduction surface hardening structural steel (1.1249)
The so-called surface hardening means that the surface of the part is hardened by a proper method and the heart of the part still has a strong toughness.
Through this treatment, the wearability and fatigue resistance of parts can be improved, and because the heart of parts still has good toughness and strength, so it has good resistance to impact load.
The main methods of surface hardening are carburization, nitriding, hard anodic oxidation, chromium plating, surface hardening and metal infiltration.
The carburizing steel parts steel is low carbon heating or insulation in carburizing medium, the carbon atoms penetrate into the surface, get a certain amount of carbon in the surface, after quenching, the high carbon content of the surface hardness is very high, and low carbon core hardness low still has good toughness the. The purpose is to make the parts with high surface hardness, wear resistance, high contact fatigue strength and bending fatigue strength. It is mainly used for parts such as shafts, gears, camshafts and so on, which bear wear, alternating contact stress or bending stress and impact load. These parts require high hardness on the surface, and the heart needs enough strength and toughness.
HOT SALE:
SA-675GR70, SA-387GR91, X6NiCrTiMoVB25-15-2, 17-4PH, 15-5PH,
ASTM 630, X3CrNiMo13-4, UNS41500, X10CrNiTi18-10, S17400,
X5CrNiCuNbl6-4, 316Ti, 301A, 303, 304L, 310S, 316L, 317L, 321,
NKA80, DIN 1.4731, DIN 1.4021, DIN 1.4016, DIN 1.4571, DIN 1.4418,
616, 440B, 440C, 431, 430FR, 430F, 430, 422, 416, 410, 405,
ASTM D2, X155CrMoV12-1, ASTM D3, AISI H11, AISI H13, 1.1249
Steel Grade: CF70(C70G)| Material No.: 1.1249
CHEMICAL COMPOSITION(1.1249):
C(％) : 0.68～0.75
Si(％) : 0.15～0.35
Mn(％) : 0.20～0.35
P(％) : 0.025
S(％) : 0.035
Cr(％) : —
Mo(％): —
Other(％) : N0.007
HARDNESS AND HEAT TREATMENT (1.1249):
Hot Working/℃: 1000～800
Annealing/℃: 650～700
Normalizing/℃: 850～880
Quench/℃: 790～820Water
Temper/℃: 550～660
Surface Hardening/℃: 780～810
Surface Hardness HRC: 60～64
INSIDE MECHANICAL PROPERTIES (1.1249):
Size/mm: ≤16
Tensile Strength|σb/MPa: 780～930
Yield Strength|σs≥/MPa: 560
Extensibility|δ5(％)≥: 11
Reduction of Area|ψ(％)≥: 25
Ballistic|αkv/J①: 21
Remark(1.1249):
①, The test sample is according to DVM-V.
②, It is mechanical properties after temper and quench in this table.
③, This standard is DIN 17211(1987).
Please find the PDF for 1.1249
Introduction surface hardening structural steel (1.1249)
The so-called surface hardening means that the surface of the part is hardened by a proper method and the heart of the part still has a strong toughness.
Through this treatment, the wearability and fatigue resistance of parts can be improved, and because the heart of parts still has good toughness and strength, so it has good resistance to impact load.
The main methods of surface hardening are carburization, nitriding, hard anodic oxidation, chromium plating, surface hardening and metal infiltration.
The carburizing steel parts steel is low carbon heating or insulation in carburizing medium, the carbon atoms penetrate into the surface, get a certain amount of carbon in the surface, after quenching, the high carbon content of the surface hardness is very high, and low carbon core hardness low still has good toughness the. The purpose is to make the parts with high surface hardness, wear resistance, high contact fatigue strength and bending fatigue strength. It is mainly used for parts such as shafts, gears, camshafts and so on, which bear wear, alternating contact stress or bending stress and impact load. These parts require high hardness on the surface, and the heart needs enough strength and toughness.
HOT SALE:
SA-675GR70, SA-387GR91, X6NiCrTiMoVB25-15-2, 17-4PH, 15-5PH,
ASTM 630, X3CrNiMo13-4, UNS41500, X10CrNiTi18-10, S17400,
X5CrNiCuNbl6-4, 316Ti, 301A, 303, 304L, 310S, 316L, 317L, 321,
NKA80, DIN 1.4731, DIN 1.4021, DIN 1.4016, DIN 1.4571, DIN 1.4418,
616, 440B, 440C, 431, 430FR, 430F, 430, 422, 416, 410, 405,
ASTM D2, X155CrMoV12-1, ASTM D3, AISI H11, AISI H13, 1.1249
