What’s 317 stainless steel material?

Stainless steel is called high-alloy steel.They contain about 4-30% chromium.According to its crystal structure, it can be divided into martensite steel, austenite steel and ferrite steel.

Class 317 stainless steel is an improved version of 316 stainless steel.High strength and corrosion resistance.The data sheet below gives more details about class 317 stainless steel.

Duplex stainless steel pipes

Name: austenitic stainless steel

Standard: AISI, ASTM

Model: 317

UNS number: s31700

Forging No.: ASTM a276 s31700

Casting No.: ame sa351 cg8m

Characteristics and application of 317 steel:

The pitting corrosion resistance of 317 (18cr-12ni-3.5mo) stainless steel is better than that of 316 steel. 317 stainless steel is used for printing and dyeing equipment materials.

HB hardness: 170 (85)

Application temperature range on valves: – 325 to 1500 ° f (- 198 to 816 ° C)

Chemical composition of 317 steel: 1

C: ≤ 0.08

Mn: ≤ 2.00

Si: ≤ 1.00

Cr: 18.0 ~ 20.0

Ni: 11.0 ~ 15.0

P: ≤ 0.045

S: ≤ 0.03

Mo: 3.0 ~ 4.0

Nitrogen n: ≤ 0.10

Note: ① the single value is the highest value unless otherwise indicated; ② when used in some pipe making processes, the nickel content of some types of austenitic stainless steel must be slightly higher than the value shown in the table; ③ optional; ④ the maximum TA content is 0.10%; ⑤ the maximum content is 0.75%; and ⑥ the maximum content is 0.70%