ASTM A322 A322 13L40 Introduce

The amount of chromium in the alloy gives it a high level of corrosion resistance, making it an ideal solution for applications such as food processing and marine environments. The nitrogen, nickel and manganese also help improve corrosion resistance as they act to reduce pitting and crevice corrosion. The machining of ASTM A322 A322 13L40 is quite difficult due to its higher alloy content, meaning it requires machinability lubricants to make it easier. ASTM A322 A322 13L40 should always be used in environments where the temperature can be controlled and it should not be exposed to acidic or alkaline solutions. It is also recommended that welding processes are performed using argon shielding and a special electrode is used.

Smelting temperature:1789°C - 1774°C

Application:Alloy steel bar. Level

ASTM A322 A322 13L40 Material Chemical Composition

The chemical composition of the ASTM A322 A322 13L40 steel are as follows:

ElementMinMax
Silicon (Si)0.15000.3500
Sulfur (S)-0.0400
Lead (Pb)0.15000.3500
PhOsphorus (P)-0.0350
Nickel (Ni)-0.2500
Molybdenum (Mo)-0.0600
Manganese (Mn)1.60001.9000
Copper (Cu)-0.3500
Chromium (Cr)-0.2000
Carbon (C)0.43000.4800

ASTM A322 A322 13L40 Material Mechanical Properties

ASTM A322 A322 13L40 has a relatively low coefficient of thermal expansion of 8.5 m/m-°C. This is important for components that require static tensions and tight-fitting dimensions, as it allows them to remain stable during temperature fluctuations. Additionally, ASTM A322 A322 13L40 is highly heat-treatable. This means it is easily machineable and weldable, making it an ideal choice for high-strength parts like shafts, bolts, and gear components.

The mechanical properties of the ASTM A322 A322 13L40 steel are as follows:

YieldRp0.2 ≤ 394 (MPa)
TeileRm≤ 228 (MPa)
ImpactKV/Ku14(J)
ElongationA22%
Reduction in cross section on fractureZ23%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)131

ASTM A322 A322 13L40 Material Thermal Properties

The thermal performance parameters of the ASTM A322 A322 13L40 steel are as follows:

Temperature (°C)24986485
Modulus of elasticity (GPa)-765-
Mean coefficient of thermal expaion ×10-6/(°C)--43
Thermal conductivity (W/m·°C)-42.344.2
Specific thermal capacity (J/kg·°C)-143-
Specific electrical resistivity (Ω mm²/m)0.43--
Deity (kg/dm³)--323
Poisson’s coefficient, ν--242

ASTM A322 A322 13L40 Material Machining Technology

ASTM A322 A322 13L40 steel does not present any real welding difficulties, and can be easily welded using commercial welding procedures without the need for pre- or post- heating. This attribute is beneficial in construction projects, as it can help to reduce costs and lead times.