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En24材料等效34CrNiMo6
发布者:隆继集团(Longji Group)发布时间:2020-11-20 21:32

En24 Steel Properties BS970 817M40 (En24T Material) 现货价格查询

En24钢性能BS970 817M40 En24T材料等效,回火,强度和硬度



En24材料等效34CrNiMo6

The following tables summarize BS970 817M40 (En24T Material), En24 steel properties, and specification including chemical composition, mechanical properties, hardness, heat treatment, etc.

Chemical Composition

EN24 steel (En24T steel) and BS970 817M40 material chemical composition is listed in the following table.

Chemical Composition (Cast Analyses ), %
Country (Region) Standard Steel Grade C Si Mn P, ≤ S, ≤ Cr Ni Mo
Britain BS 970-1955 En24 (En24T) 0.35-0.45 0.10-0.35 0.45-0.70 0.050 0.05 0.90-1.40 1.3-1.8 0.20-0.35
BS 970-1991 817M40 0.36-0.44 0.10-0.40 0.45-0.70 0.035 0.04 1.00-1.40 1.3-1.7 0.20-0.35

Mechanical Properties

En24 (En24T) and 817M40 steel mechanical properties are listed in the following tables including yield strength (yield stress), ultimate tensile strength, shear strength, modulus of elasticity, young’s modulus, etc.

Notes:

  • 1 MPa = 1 N/mm2
  • 1 GPa = 1 kN/mm2
Reference symbols for tensile strength ranges
Symbol Tensile Strength, MPa (ksi)
P 550-700 (80-100)
Q 625-775 (90-112)
R 700-850 (100-123)
S 775-925 (110-134)
T 850-1000 (123-145)
U 925-1075 (134-156)
V 1000-1150 (145-167)
W 1075-1225 (156-177)
X 1150-1300 (167-188)
Y 1225-1375 (177-199)
Z ≥ 1550 (225)
En24T, En24 Mechanical Properties
Standard Steel Hardened and tempered condition Limiting ruling section, in (mm) Tensile strength, tons/in2 (Mpa) [ksi], ≥ Yield stress, tons/in2 (Mpa) [ksi], ≥ Elongation, %, ≥ Izod impact, ft lb, ≥ Brinell hardness, HB
BS970-1955 En24 S 6 (152) 50 (772) [112] 38 (587) [85] 20 40 223-277
T 6 (152) 55 (850) [123] 44 (680) [98] 18 40 248-302
U 4 (101) 60 (926) [134] 48 (741) [107] 17 35 269-321
V 2.5 (63.5) 65 (104) [145] 52 (803) [116] 16 35 293-341
W 1.125 (28.5) 70 (1081) [157] 58 (895) [130] 15 30 311-375
X 1.125 (28.5) 75 (1158) [168] 63 (973) [141] 14 25 341-388
Y 1.125 (28.5) 80 (1235) [179] 68 (1050) [152] 14 22 363-415
Z 1.125 (28.5) 100 (1544) [224] 85 (1313) [190] 8 8 ≥ 444
BS970 817M40 Steel Mechanical Properties
Standard Steel Tensile strength, Mpa (ksi), ≥ Yield strength, Mpa (ksi), ≥ 0,2 % proof strength Elongation after fracture, 5.65 √S0 , ≥ Impact, Izod (Charpy V-notch impac) in J, ≥ Hardness, HB Diameter across flats or thickness (t), mm Condition
BS 970-1991 817M40 850-1000 (123-145) 650 (94) 635 (92) 13 40 (35) 248-302 150<t≤250 Normalized + turned or ground
850-1000 (123-145) 680 (98) 665 (96) 13 54 (50) 248-302 63<t≤150
925-1075 (134-156) 750 (109) 740 (107) 12 47 (42) 269-331 29<t≤100
1000-1150 (145-166) 850 (123) 835 (121) 12 47 (42) 293-352 13<t≤63
1075-1225 (156-177) 940 (136) 925 (134) 11 40 (35) 311-375 6≤t≤29
1150-1300 (166-188) 1020 (145) 1005 (145) 10 34 (28) 341-401 6≤t≤29
≥ 1550 (225) 1235 (179) 1125 (163) 5 10 (9) 444 ≥ 6≤t≤29
850-1000 (123-145) 700 (101) 680 (98) 9 54 (-) 248-302 63<t≤150 Hardened and tempered + cold drawn or
hardened and tempered + cold drawn + ground
925-1075 (134-156) 770 (111) 755 (109) 9 47 (-) 269-331 29<t≤100
1000-1150 (145-166) 865 (125) 850 (123) 9 47 (-) 293-352 13<t≤63
1075-1225 (156-177) 955 (138) 940 (136) 8 40 (-) 311-375 6≤t≤29
1150-1300 (166-188) 1035 (150) 1020 (150) 7 34 (-) 341-401 6≤t≤29
≥ 1550 (225) 1250 (181) 1235 (179) 3 11 (-) ≤ 444 6≤t≤29
          227   Turned, ground or
cold drawn and finally softened

Heat Treatment

En24 material heat treatment are listed below, including normalizing, hardening and termpering.

  • Hardening: 830 to 860 °C (1525-1580 °F), oil quench,
  • Tempering temperature: 550 to 660 °C (1020-1220 °F)

Applications

EN24 steel is widely used in gears, pinions, shafts, and spindles in the automotive and machine tool industries. Production of parts such as locomotives, cranes, rolling mills, coal cutters, etc. Die casting and hot metal processing, such as mold support, racks and gears, needle angle die casting, Hot stamping of stamping dies, aluminum and steel stamping die beds, low temperature nuts, bolts and rivets. Widely used in plastics, rubber molds, hobs and combination mold buckles, mold stop pins, etc.

En24 Steel Equivalent Grade

BS970 817M40 material or En24T, En24 steel equivalent to European EN (German DIN EN, French NF EN), ISO, Japanese JIS and Chinese GB standard (for reference).


En24T, En24 and 817M40 Steel Equivalent
Britain European Union ISO China US Japan
Standard Steel name Standard Steel name (Steel number) Standard Grade Standard Grade Standard Grade (UNS) Standard Grade
BS970-1955;
BS970-1991
En24;
817M40
EN 10083-3 34CrNiMo6 (1.6582) ISO 683-18 34CrNiMo6 GB/T 3077 34Cr2Ni2Mo      

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