不锈钢2205合金(UNS S31803)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
热性能
Other Designations
制造和热处理
Annealing
Hot Working
Welding
成型
可加工性
申请

Introduction

Stainless steels are high-alloy steels. These steels are available in four groups that include martensitic, austenitic, ferritic and precipitation-hardened steels. These groups are formed based on the crystalline structure of stainless steels.

与其他钢相比,不锈钢含有大量的铬,因此具有良好的耐腐蚀性。大多数不锈钢含有约10%的铬。

2205级不锈钢是一种双链不锈钢,其设计可改善对点蚀,高强度,高强度,应力腐蚀,缝隙腐蚀和开裂的耐药性。2205级不锈钢抵抗硫化物应力腐蚀和氯化物环境。

The following datasheet provides an overview of grade 2205 stainless steel.

Chemical Composition

下表概述了2205级不锈钢的化学成分。

元素 内容 (%)
Iron, Fe 63.75-71.92
铬,Cr 21.0-23.0
Nickel, Ni 4.50-6.50
Molybdenum, Mo 2。50-3.50
Manganese, Mn 2。0
硅,SI 1。0
Nitrogen, N 0。080-0.20
碳,c 0。030
Phosphorous, P 0。030
硫,s 0.020

Physical Properties

The following table shows the physical properties of grade 2205 stainless steel.

特性 公制 帝国
密度 7.82 g/cm³ 0。283 lb/in³

Mechanical Properties

下表显示了2205级不锈钢的机械性能。

特性 公制 帝国
Tensile strength at break 621MPa 90000 psi
产量强度(@Strain 0.200%) 448 MPA 65000 psi
休息时伸长(50毫米) 25.0% 25.0%
硬度,布里尔 293 293
Hardness, Rockwell c 31.0 31.0

热性能

The thermal properties of grade 2205 stainless steel are given in the following table.

特性 公制 帝国
热膨胀同时(@20-100°C/68-212°F) 13.7 µm/m°C 7.60 µin/in°F

Other Designations

分析您的金属|请求报价

Equivalent materials to grade 2205 stainless steel are:

  • ASTM A182级F51
  • ASTM A240
  • ASTM A789
  • ASTM A790
  • DIN 1.4462

制造和热处理

Annealing

Grade 2205 stainless steel is annealed at 1020-1070°C (1868-1958°F) and then water quenched.

Hot Working

Grade 2205 stainless steel is hot worked in the temperature range of 954-1149°C (1750-2100°F). Hot working of this grade stainless steel under room temperature is recommended whenever possible.

Welding

建议使用2205级不锈钢的焊接方法包括SMAW,MIG,TIG和手动覆盖的电极方法。在焊接过程中,应避免在通过之间冷却材料在149°C以下(300°F)以下,并应避免焊接片的预热。低热量输入应用于焊接2205级不锈钢。

成型

由于其高强度和工作硬化速度,2205级不锈钢很难形成。

可加工性

2205级不锈钢可以用碳化物或高速工具加工。使用碳化物工具时,速度降低了约20%。

申请

2205级不锈钢用于以下应用:

  • 烟气过滤器
  • 化学罐
  • 热交换器
  • Acetic acid distillation components


Comments

  1. Plinio Pecly Plinio Pecly 巴西 says:

    Just a question: what difference between UNS S32205 and USN S31803?

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