TOCT 14959 60C2
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TECHNICAL SPECIFICATION: TOCT 14959 - 1979
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS -  BV
MATERIAL CATEGORY: Spring steel
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％):  0.57 ~ 0.65
Silicon, Si (％):  1.50 ~ 2.00
Manganese, Mn (％):  0.60 ~ 0.90
Phosphorus, P (％) ≤:  0.035
Sulfur, S (％) ≤:  0.035
Chromium, Cr (％):  ≤ 0.30
Nickel, Ni (％):   ≤ 0.25
Copper, Cu (％):  ≤ 0.20
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Annealed hardness | HBW: 302 max.
Heat treatment: Quenching 870 Deg. oil cooling
                        Tempering 470 Deg.
Tensile strength,σb/≥ MPa: 1275
Yield strength, σ0.2/≥ MPa: 1177
Elongation, δ ≥(％): 6.0
Reduction of area, ф ≥ (％): 25.0
MANUFACTURING TECHNIQUE
General spring steels are produced in electric furnace, open hearth furnace, oxygen converter,and high quality spring steel of higher quality or special performance can be made in electro slag furnace or vacuum furnace.
PROCESSING PROPERTY
Spring Steel is commonly used in the condition of impact, vibration, or long-term stress. which makes the spring steel require higher tensile strength, limit of elasticity, fatigue strength. also requirement of definite hardenability, good surface quality, not easy decarburization.
PRODUCT FORMS AVAILABLE
Round bar (diameter): 5.50mm to 400mm
Square bar / flat bar: 10mm to 500mm
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, other different shapes based on OEM.

ADVANTAGE & SUPERIOR SERVICE
17+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.