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Questions and answers to the brand knowledge of heat-resistant steel

2018-01-16 07:43:07 Viewers:
Q: what is the chemical composition of GH140 alloy?
Answer: C 0.06 ~ 0.12 Mn = 0.7, Si = 0.8
P = 0.025 S = 0.015 Cr 20 to 23 Ni from 35 to 40
Mo 2 ~ 2.5 Ti 0.7 ~ 1.2 Al 0.2 ~ 0.6
Fe margin other W 1.4 ~ 1.8 Ce less than or equal to 0.05

Question: what standard heat resistant steel is zg30cr20ni10
Answer: This is China's heat-resistant steel standard, equivalent to Germany 1.4826, daily standard SCH12
Less used in heat treatment equipment, performance less than 2520 (310, 309)
But the price is a little cheaper than 2520. It can be used to do the heat treatment work plate, the furnace floor and the like.

Question: what standard is hr32, what material is hr32
Answer: for the first time, we have seen the material of hr32, which is used in a vacuum furnace.
The length and width are about 1 meters and 2. High temperature resistance 1200 degrees. Process: soft nitriding
HR32 is equivalent to 2535 of this kind of material in China, and the frame is cast as a whole. Use a year and a half to two years.
The NCS silica sol casting process was used. The whole structure is good.

Q: what is the material 1.4852? How much is the temperature resistant?
Answer: 1.4852 is the German standard die steel, the composition is as follows:
C 0.30 - 0.50%
Si 1 -2.50%
Mn 2% Max
P 0.040% Max
S 0.030% Max
Cr 24 - 27%
Ni 33 - 36%
Mo 0.50%, ax
Nb 0.80 - 1.80%
It is equivalent to the 2535 standard in China. The carbon amount is controlled around 0.3. It can resist high temperature about 1150-1200 degrees.

Q: what is the material of 1.4865 1.4849, and what is the specific composition?
Answer: the German standard, the most commonly used standard, the gas carburizing furnace, the heat-resistant steel material used in the vacuum furnace
Equivalent to the domestic 1838 standard and the 1838nb standard
The heat resistance is about 1100 degrees, and the warranty time is 12 months.

Q: what is the 2.4879 component? Which brand is close to China?
Answer: 2.4879 is equivalent to the domestic 2848W5 standard.