Chemical composition of 14Cr1MoR (H) steel plate and experimental analysis of hydrogen steel plate

Chemical composition of 14Cr1MoR (H) steel plate and experimental analysis of hydrogen steel plate

1. Introduction to 14Cr1MoR (H) steel plate 1. 14Cr1MoR (H) steel belongs to Cr-Mo low alloy steel, 14Cr1MoR (H) belongs to
the national standard of high-temperature container steel plate, the steel has good toughness and plasticity, high strength, anti-tempering embrittlement performance and excellent welding performance, the steel can be used in contact with hydrogen, high temperature, high pressure and other harsh conditions, is a commonly used hot strength steel and hydrogen resistant steel.
2. The grade of 14Cr1MoR (H) steel plate represents: "14": it means that the carbon content of the steel plate is 14; "Cr, Mo": expressed as the chemical elements chromium and molybdenum; "R": indicates the initial letter of the pinyin of the container plate "Rong", which is a special steel plate for pressure vessels; "H" indicates the hydrogen test of the steel plate.
3. 14Cr1MoR (H) steel plate implementation standard: implement the GB35012-2018 standard.
4. Technical standards for
14Cr1MoR (H) steel plate (1) 14Cr1MoR (H) size, shape, weight and allowable deviation: The size, shape and allowable deviation of the steel plate shall comply with the provisions
of GB/T709 (2) The thickness deviation of the steel plate shall meet the requirements of GB/T709 Class B deviation, and according to the requirements of the buyer, it can also be delivered
according to the Class C deviation of GB/T709(3) 14Cr1MoR (H) ultrasonic testing: 14Cr1MoR (H) steel plate should be ultrasonic testing, and should meet the requirements of NB/T47013.3-2015.
5. 14Cr1MoR (H) steel plate delivery status: the steel plate is delivered in normalized (allowing accelerated cooling) + tempering state, and the delivery status can also be specified according to technical requirements.
6. Performance requirements for the thickness direction of 14Cr1MoR (H) steel plate: Z15, Z25, Z35.
7. 14Cr1MoR (H) steel plate flaw detection requirements: one probe, two probe, three probe.
8. 14Cr1MoR (H) steel plate density: 7.85/cubic meter.
9. 14Cr1MoR (H) steel plate weight adjustment formula: thickness * width * length * density.
10. Conventional size of 14Cr1MoR (H) steel plate: 8-80mm*2000-2500mm*8000-10000mm

Chemical composition

Tabulation: Depu Steel Date: 2024-01-22

C	Si	Mn	P	S	Alt	Cr	Mo	Ni	N
0.05-0.17	0.05-0.80	0.40-0.65	≤0.010	≤0.007	≥0.015	1.15-1.50	≤0.45-0.65	≤0.20	≤0.0080

Note:
(1) 14Cr1MoR(H) tempering embrittlement coefficient (melting analysis and finished product analysis J≤150, X≤15.
(2) 14Cr1MoR (H) steel plate grain size: 14Cr1MoR (H) steel plate grain size test should be carried out in the simulated post-weld heat treatment state of the steel plate sample, and the austenitic grain size is 5 or finer

14Cr1MoR (H) steel plate smelting method: 14Cr1MoR (H) steel is smelted by oxygen converter or electric furnace.
9. 14Cr1MoR (H) steel plate ultrasonic testing After negotiation between the supply and demand parties, the steel plate can be ultrasonic tested according to GB/T2970, and the testing
standard and qualification level should be specified in the contract.
8. Application range of
14Cr1MoR (H) steel plate14Cr1MoR (H) steel plate is suitable for large-scale equipment with high temperature and high pressure such as petrochemical industry, nuclear power, steam turbine cylinder block, thermal power, etc., and hydrogen or hydrogen mixed medium. 14Cr1MoR(H) is a kind of chromium-molybdenum alloy steel plate for hydrogen equipment, which is suitable for manufacturing hydrogen equipment such as petrochemical industry and coal chemical industry. It is mainly used for hydrogenation equipment on petrochemicals, such as hydrogenation reactors.