Sa516gr.70 is a carbon steel plate for medium and low temperature pressure vessels, which is in accordance with ASME standard. In order to meet the different requirements of users and facilitate production management, the s and P requirements for steel grades are divided into three levels, I, II and III.
About sa516gr.70
Wugang research and development in 2006 (Wugang for Puguang gas field in Sichuan development and production of 4776 tons of 130mm thick SA516Gr70N steel plate, instead of imported products, strongly promoted the process of localization of petrochemical equipment steel plate), brand, and SA515Gr70, SA516Gr60, SA516Gr70, SA516Gr60N, SA516Gr70N
Sa516gr.70 executive standard
Sa516gr.70 executive standard: American ASTM, ASME
Chemical composition of SA516Gr70
C≤0.30，Mn：0.79-1.30，P≤0.035，S：≤0.035，Si：0.13-0.45。
Mechanical properties of SA516Gr70
SA516Gr70 is 70kpsi, which is more than 482. The main element content is cmnsi, and its properties are determined by the control of P and s. There are few other trace elements. Standard Specification for carbon steel plates for medium and low temperature pressure vessels
Executive Standards: American and ASME standards:
Strength grade
Class U.S (SI) Ksi (MPA)
55 (380) 55-75 (380-515)
60 (415) 60-80 (415-550)
65 (450) 65-85 (450-585)
70 (485) 70-90 (485-620)
SA516Gr70 heat treatment
1. Sa515gr60, sa515gr70, SA516Gr70, sa516gr60n, sa516gr70n thickness ≤ 1.5in, (40mm) steel plate is usually supplied in rolling state, normalized and stress relieved ordering.
2. Steel plate with thickness more than 1.5in. (40mm) shall be normalized.
Sa516gr.70: HLC parameter
performance
Thickness (mm) rm
MPa Rp0.2
MPa A
%- 30 ℃ Akv transverse J ￥ Z
% hardness
HB
Standard: 450-585 ≥ 230 ≥ 23 ≥ 34 ≥ 35 ≤ 200
>8-40
Actual measurement 476-530 307-350 27-36 108-289 66-75 143-155
>90-165 475-540 312-369 31-38 91-256 45-68.5 163-187
Note: tensile specimen simulation system: 620 + 10 ℃ - 5 ° cx24h: impact specimen simulation post weld heat treatment
System: 620 + 10 ℃ - 5 ° cx24h: hardness is as delivered (2) sampling position is 1 / 2 of head plate thickness
Steel type, executive standard, thickness mm, batch with cracks (batch), batch without cracks (batch), inspection batch (batch)
SA516Gr70(HIC) NACETM0284
B solution 8-165 0 56 56
SA516Gr70(HIC) NACETM0284
A solution 8-165 105 105
Sa516gr.70 purpose
Sa516gr.70 is widely used in petroleum, chemical industry, power station, boiler and other industries. It is used to make reactor, separator, spherical tank, gas tank, liquefied gas tank, liquefied petroleum gas cylinder, high-pressure water pipe of hydropower station, turbine volute and other equipment and components