301S21（1.4310）板，棒，管，鋼帶，線材，鍛件，鍛管，鍛板，鍛棒，圓棒，板材，薄板，無(wú)縫管，焊管，圓鋼，絲材

牌號(hào)

301S21

BS 5770-4-1981

對(duì)應(yīng)標(biāo)準(zhǔn)

用于制造彈簧的鋼帶——第4部分:馬氏體和奧氏體不銹鋼規(guī)范

Steel strip intended for the manufacture of springs —Part 4: Specification for martensitc and austenitic stainless steel

歸類(lèi)

奧氏體不銹鋼

性能彈性耐腐蝕

301S21（1.4310）亞穩(wěn)定奧氏體不銹鋼，是易冷變形強(qiáng)化不銹鋼，經(jīng)冷加工有高的強(qiáng)度和硬度，并仍保留足夠的塑韌性，在大氣條件下具有較好的耐蝕性。不銹鋼 301S21（1.4310）是一種流行的奧氏體鉻鎳不銹鋼，以其耐腐蝕性而聞名。與304類(lèi)似，它的鉻和鎳含量較低，這增加了其冷加工硬化范圍。在大氣條件下具有良好的耐腐蝕性，但在還原性介質(zhì)、酸、堿、鹽等化學(xué)介質(zhì)中耐腐蝕性較差，因此不推薦用于惡劣的腐蝕環(huán)境。該合金主要用于冷加工狀態(tài)以承受更高的載荷，同時(shí)也希望減輕設(shè)備和耐腐蝕零件的重量。期望這些標(biāo)準(zhǔn)中的規(guī)范與本數(shù)據(jù)表中給出的規(guī)范相似但不一定相同是合理的。

301S21 (1.4310) metastable austenitic stainless steel is a kind of cold deformation strengthening stainless steel. It has high strength and hardness after cold working, and still retains enough plastic toughness. It has good corrosion resistance under atmospheric conditions. Stainless steel 301S21 (1.4310) is a popular austenitic chromium nickel stainless steel, which is famous for its corrosion resistance. Similar to 304, it has low chromium and nickel content, which increases its cold work hardening range. It has good corrosion resistance under atmospheric conditions, but poor corrosion resistance in reducing media, acid, alkali, salt and other chemical media, so it is not recommended to be used in harsh corrosive environments. This alloy is mainly used in cold working state to bear higher load, and also hopes to reduce the weight of equipment and corrosion resistant parts. It is reasonable to expect the specifications in these standards to be similar but not necessarily identical to those given in this data sheet.

301S21 化學(xué)元素成分含量(%)

301S21（1.4310）的應(yīng)用

• 輪罩

• 屋頂排水系統(tǒng)

• 輸送帶

• 汽車(chē)成型與裝飾

• 地鐵和鐵路車(chē)廂

• 彈簧、軟管夾

• 拖車(chē)和卡車(chē)車(chē)身

• 廚房設(shè)備

301S21（1.4310）物理性能：

①密度密度(20℃)/kg/dm3:7.93,

②熔點(diǎn)/℃:1398~1420 ,

③比熱容(0~100℃)/kg/(kg.k):0.5,

④熱導(dǎo)率/w/(m.k)100℃-:16.3,

⑸熱導(dǎo)率/w/(m.k)500℃-:21.5,

⑥線脹系數(shù)/(10-6/k)0~100℃:16.9 ,

⑦線脹系數(shù)/(10-6/k)0~500℃:18.7,

⑧電阻率（20℃）/（Ω.mm2/m):0.73,

⑨縱向彈性模量（20℃）/GPa:193，

⑩磁性:無(wú)。

301S21（1.4310）力學(xué)性能:

⑵抗拉強(qiáng)度（RM/MPa）：520，

⑶延伸強(qiáng)度（Rp0.2/MPa）：205，

⑷伸長(zhǎng)率A/%：40，

⑸斷面收縮率（Z/%）：60。

301S21（1.4310）熱處理：①硬度HBW≤：固溶187，硬度HRB≤：90，②加熱溫度：1010~1150，③加熱方式：快冷。

301S21（1.4310）應(yīng)用領(lǐng)域:主要用于冷加工狀態(tài)承受較高負(fù)荷又希望減輕裝備重量和不生銹的設(shè)備和部件，如鐵道車(chē)輛、傳送帶、螺栓、螺母、緊固件等。

Application of 301S21 (1.4310)

Wheel housing

Roof drainage system

Conveyor belt

Automobile Forming and Decoration

Subway and railway carriages

Spring, hose clamp

Trailer and truck body

Kitchen equipment

301S21 (1.4310) Physical performance:

① Density (20 ℃)/kg/dm3: 7.93,

② Melting point/℃: 1398~1420,

③ Specific heat capacity (0~100 ℃)/kg/(kg. k): 0.5,

④ Thermal conductivity/w/(m.k) 100 ℃ -: 16.3,

⑸ Thermal conductivity/w/(m.k) 500 ℃ -: 21.5,

⑥ Linear expansion coefficient/(10-6/k) 0~100 ℃: 16.9,

⑦ Linear expansion coefficient/(10-6/k) 0~500 ℃: 18.7,

⑧ Resistivity (20 ℃)/(Ω. mm2/m): 0.73,

⑨ Longitudinal elastic modulus (20 ℃)/GPa: 193,

⑩ Magnetism: None.

301S21 (1.4310) Mechanical property:

(2) Tensile strength (RM/MPa): 520,

(3) Tensile strength (Rp0.2/MPa): 205,

(4) Elongation A/%: 40,

(5) Reduction of area (Z/%): 60.

301S21 (1.4310) heat treatment: ① hardness HBW ≤: solid solution 187, hardness HRB ≤: 90, ② heating temperature: 1010~1150, ③ heating method: fast cooling.

Application field of 301S21 (1.4310): mainly used for equipment and parts that bear high load in cold working state and hope to reduce equipment weight and not rust, such as railway vehicles, conveyor belts, bolts, nuts, fasteners, etc.