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Huangshi Chengquan Metal Material Co., Ltd.

SAE4320, 637m17, DIN1.5714 manufacturer / supplier in China, offering SAE4320 637m17 DIN1.5714 16nicr4 Special Alloy Case Hardening Steels, ASTM 201 Stainless Steel Round Bar with High Quality, Tool Steel Round Bar (O2, 90MnCrV8, 1.2842, BS BO2) and so on.

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Supplier Homepage Product Structual Steel Case Hardening Steel SAE4320 637m17 DIN1.5714 16nicr4 Special Alloy Case Hardening Steels

SAE4320 637m17 DIN1.5714 16nicr4 Special Alloy Case Hardening Steels

FOB Price: US $400-1,000 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $400-1,000/ Ton
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Production Capacity: 5000tons/Year
Transport Package: Seaworth Packing
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: SAE4320 637M17 DIN1.5714 16NiCr4
  • Standard: AISI, DIN, GB, BS
  • Technique: Hot Forged,or Hot Rolled
  • Surface Treatment: Black Surface, Grinded,Peeled,Milled,Polished
  • Application: Structural Steel Bar
  • Quality Standard: BS En 10084 2008 Case Hardening Steels
  • Delivery Condition: Hot Rolled, Forged, Annealed,Quenched and Tempered
  • Trademark: CHENGQUAN
  • Origin: Huangshi, Hubei
  • Type: Alloy Steel Bar
  • Composition: Ferrous Steel Scrap
  • Shape: Round,Flat or Square
  • Special Use: Alloy Structural Steel
  • Size Range: Round Bar:Dia12~420mm Flat Bar:2~420 X 30~1500mm
  • Smelting Process: Ef, Ef/Eaf+Lf+Vd, Ef/Eaf+ESR
  • Surface Condition: Black Surface, Grinded,Peeled,Milled,Polished
  • Specification: Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
  • HS Code: 7228100000
Product Description
Similar Grade:

Quality Standard:
BS EN 10084 2008 Case hardening steels

Chemical Composition(%)

0.13-0.190.70-1.000.40 max0.025 max0.035 max0.60-1.000.80-1.10

Mechanical Properties(values obtained on test blanks after core hardening + stress-relieving)

Test Blanks Diameter(mm)
Tensile Strength (Mpa)Yield Strength (Mpa)Elongation (longitudinal) (%)Impact 20°C(J)Hardness (HB)
11mm1080-1470835 min9 min30 min327-417
30mm830-1130590 min10 min32.5 min249-339


Hot Forming900-1150air
Normalizing870 minair
Soft Annealing700 minair 217HB max
Core hardening840-880oil-polymer salt bath
Isothermal annealing860 mincooling to 650, then air (HB 166-217)
Case hardening810-840oil-polymer salt bath

Alloyed case hardening steel for parts with a required core tensile strength of 1000 - 1300 N/mm² and good wearing resistance as boxes, piston bolts, spindles, camshafts, gears, shafts and other mechanical controlling parts.
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