Hot working die steel 40CrNi4Mo
2026-09-05 08:56:01 Origin： Remark：0 Click：
GB/T 1299-2014 Material specification of hot working die steel 40CrNi4Mo round bar, flat bar, plate, cold drawn rod stock available, heat treated
TECHNICAL DATA SHEET - GB 40CrNi4Mo
Technical specifications: GB/T 1299-2014
Material type: 1.35Cr - 4.0Ni - 0.25Mo - 0.45C base hot working die steel
H S tariff code for Customs: 7228 3000 / 7228 5000 / 7228 6000
Typical applications: cutting tools. mechanical parts, air hammer tools. piercing tools.
Inventory: round bar 30 ~ 280 mm
PROFILES & DIMENSIONS AVAILABLE
Round bar, disc (diameter): 6.0 ~ 900 mm
Flat bar (thickness x width): 6 ~ 350 X 15 ~ 600 X L mm
Sheet, plate (thickness x width): 1.0 ~ 300 X 10 ~ 1200 X L mm
Forging piece: stepped shafts and other different shapes based on OEM.
TYPICAL CHEMICAL ELEMENTS (mass fraction - %)
Carbon, C (％): 0.40 ~ 0.50
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.20 ~ 0.50
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 1.20 ~ 1.50
Tungsten, W (%): -
Molybdenum, Mo (%): 0.15 ~ 0.35
Typical applications: cutting tools. mechanical parts, air hammer tools. piercing tools.
Inventory: round bar 30 ~ 280 mm
PROFILES & DIMENSIONS AVAILABLE
Round bar, disc (diameter): 6.0 ~ 900 mm
Flat bar (thickness x width): 6 ~ 350 X 15 ~ 600 X L mm
Sheet, plate (thickness x width): 1.0 ~ 300 X 10 ~ 1200 X L mm
Forging piece: stepped shafts and other different shapes based on OEM.
TYPICAL CHEMICAL ELEMENTS (mass fraction - %)
Carbon, C (％): 0.40 ~ 0.50
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.20 ~ 0.50
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 1.20 ~ 1.50
Tungsten, W (%): -
Molybdenum, Mo (%): 0.15 ~ 0.35
Nickel, Ni (%): 3.80 ~ 4.30
Vanadium, V (%): -
Niobium, Nb (%): -
Vanadium, V (%): -
Niobium, Nb (%): -
Cobalt, Co (%): -
Iron, Fe (%): remainder.
MECHANICAL PROPERTIES - HEAT TREATMENT PRACTICE
Annealing temperature: -
Quenching temperature: 840 ~ 870, oil or air cooled
Cooling medium: air cooling
Common tempering temperature: -
Hardness via tempering temp. HRC: -
Hardness via annealing heat treatment, HBW: ≤ 285
TECHNICAL SALES ASSISTANCE & 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.
If you are interested in our products or services, or would like to learn more about us, pleased to EMAIL (sales@ccsteels.com) our qualified production engineers or sales department.
Hardness via tempering temp. HRC: -
Hardness via annealing heat treatment, HBW: ≤ 285
TECHNICAL SALES ASSISTANCE & 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.
Raw material stock available
Custom 450 / XM-25 / S45000, 403 ESR, AISI 616 / 422 ESR / 1.4935, B50A365 / 403Cb+ / 1.4913
17-4PH / 630 / 1.4542, S64152 / M-152 / 1.4938 / S151 / S159, S111, FV520B / S143 / 1.4594
X8CrMnN18-18, X40MnCrN19, X40MnCr18, X55MnCrN18-4
13Х11Н2B2MФ / AE961W, 11Х11Н2B2MФ / 16Х11Н2B2MФ
15-5PH / XM-12 / S15500, A-286 AISI 660 / S66286
10705BU, 10705MBU, 10705AJ
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