GNEE Group office environment
Q370R Q420R Boiler Sheet Steel
Pressure Vessel Plate Product Description
The advantages of Q370R steel boiler plate are: optimized component mixing ratio and heat treatment process; on the basis that the tensile strength and yield strength meet the GB 713-2008 standard, the low-temperature impact toughness is improved.
Q370R pressure vessel plate is widely used in petroleum, chemical, power plants, boilers and other industries to produce reactors, heat exchangers, separators, spherical tanks, oil tanks, liquefied petroleum gas tanks, pressure vessels, boiler drums, liquefied petroleum Gas cylinders, water and electricity high-pressure water pipes, turbine volutes and other equipment and components.
Q420R pressure vessel steel plate has high strength and good fatigue resistance; high strength, high fatigue resistance, high impact resistance, high wear resistance and high corrosion resistance.
Q420R pressure vessel plate material is widely used in large welded structural parts such as large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, rolling stock, overweight machinery, mining machinery, etc.
Pressure Vessel Steel Plate Products Details
Q370R boiler plate chemical composition:
| Grade | C% | SI% | Mn% | Nb% | V% | P% | S% |
| Q370R | ≤0.18 | ≤0.55 | 1.20-1.60 | 0.015-0.050 | ≤0.025 | ≤0.015 | |
Q370R boiler plate mechanical property:
| Steel Grade | Thickness, in mm | Tensile Strength | Yield Strength, min | Elongation, %, min |
| Q370R | 10<T≤16 | 530-630 | 370 | 20 |
| 16<T≤36 | 360 | |||
| 36<T≤60 | 520-620 | 340 |
Q420R pressure vessel steel chemical composition:
| Grade | C% | SI% | Mn% | Nb% | P% | S% |
| Q420R | ≤0.20% | ≤0.55% | 1.20~1.60% | ≤0.05% | ≤0.025% | ≤0.015% |
Q420R boiler steel plate mechanical property:
| Grade | Delivery condition | Thickness | Tensile strength | Impact test | Bending test | |||
| Rm /MPa |
ReLa /MPa |
A /% |
temperature /℃ |
KV2 /J |
180° b=2a |
|||
| Q420R | normalized | 10-20 | ≤590~720 | ≤420 | ≤18 | ≤-20 | ≤60 | ≤d=3a |
| normalized | >20~30 | ≤570~700 | ≤400 | |||||
Pressure Vessel Plate Material Products Image

Gnee Group Introduction And Customer Visits
GNEE Steel was established in 2008. The company has won unanimous praise from customers through its huge inventory, the most complete varieties, the most stable supply, and the most timely supply. With high-quality products and good services, our customers are all over the world.
Our company will continue to be honest and pragmatic, maintain, consolidate and promote the national brand, and provide high-quality products and first-class services to domestic and foreign customers. We sincerely hope to develop long-term win-win cooperation with customers at home and abroad.
China Boiler Steel Factory--GNEE Group

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