1.6959 Alloyed Carbon Steel

Everything You Need to Know About 38ChN3MFA, 1.6959 Alloyed Carbon Steel PD 970:2005

1.6959 Alloyed Carbon Steel Description

1.6959 alloyed carbon steel is a type of steel that will operate under load in a specific temperature range – – 40 to 420 °C. The 38ChN3MFA steel belongs to a special type of weldability group known as the NAKS MO3 and is hardly weldable steel. To weld this steel, preheating is a must and welding should be followed by stress relieving.

1.6959 Alloyed Carbon Steel Applications

The 1.6959 alloyed carbon steel has a good set of properties that makes it a suitable material to create various products and parts. It can be used in various applications. This includes:

  1. Heavy-duty fastenings
  2. Studs
  3. Aircraft industry
  4. Energy industry

1.6959 Alloyed Carbon Steel Chemical Composition

The chemical composition of 1.6959 alloyed carbon steel is:

1.6959 steel chemical element % present
Carbon (C) 0.30 to 0.40%
Manganese (Mn) 0.40 to 0.70%
Silicon (Si) [Max] 0.15 to 0.35%
Phosphorus (P) [Max] 0.015%
Sulphur (S) [Max] 0.015%
Chromium (Cr) 1.00 to 1.40%
Nickel (Ni) 2.50 to 3.50%
Molybdenum (Mo) 0.35 to 0.60%
Vanadium (V) 0.08 to 0.20%

1.6959 Alloy Steel Heat Treatment

1.6959 steel hot work and heat treatment temperature
Hot Forming °C Tempering °C Nitriding °C Soft Annealing °C Quenching °C
1100 to 900 450 to 650 500 to 530 750 850
Air Polymer or Oil

1.6959 Alloy Steel Properties

Here are the properties of 1.6959 alloy steel:

  1. Hardly weldable
  2. Load resistant

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