Carbon Steel Plate Type Flange

ASTM A36 key data description:

Process accuracy: laser cutting aperture tolerance ±0.1mm | flatness ≤0.05mm/m

Pressure level: PN6/PN10/PN16/PN25/PN40 (Class 150~300)

Size coverage: DN50~DN2000 (2"~80")

Key certification: EN 1092-1 Type 01 | ASME B16.5 | PED 2014/68/EU

Product advantages:

I. Extreme working condition solution

High temperature protection (538℃)

Oxidation thickening rate: <0.1mm/year** (ordinary carbon steel 0.3mm/year)

Material upgradeable- ASTM A516 Gr.70: High temperature yield strength **≥145MPa@400℃

Thermal expansion compensation design:

- Bolt hole ovality reserve: 0.3mm/100℃

Low temperature impact protection (-46℃ deep cold environment)

- ASTM A350 LF2: impact energy **45J@-46℃** (standard requirement 27J)

- Tough-brittle transition temperature: **≤-60℃** (confirmed by drop hammer test)

2. Material performance: deformation resistance increased by 80%

Grain size control: ordinary flanges are grade 5, while the Carbon Steel Plate Type Flanges we produce have grade 7 fine grains

Low temperature toughness: -29℃ Charpy impact energy ≥27J, certified by EN 10225.

3. Exclusive anti-corrosion

Corrosion type This product protection solution Industry solution Life extension

Electrochemical corrosion Zinc-nickel alloy coating (500h salt spray zero white rust) Dacromet coating 2.3 times

Atmospheric corrosion 85μm hot-dip galvanizing + sealing coating Ordinary galvanizing 60μm 12 years → 20 years

Acidic medium Epoxy coal tar coating (pH 2-12 resistant) Ordinary epoxy coating 8 years → 15 years

4. Sealing surface optimization

Lightweight design

Stress concentration factor: SCF≤**1.8** in the key area of Carbon Steel Plate Type Flanges has great advantages over ordinary flange ≥2.5

Topological optimization weight reduction: Under the same conditions, the weight is 22% lighter than the traditional design

- Verification standard: ASME BPVC Section VIII Div.2

- Ra 3.2μm mirror turning (ordinary flange Ra 6.3μm)

- Effect: Gasket compression is reduced by 18%, and the probability of sealing failure is reduced by 90%

V. Engineering efficiency is greatly improved, and installation costs are reduced by 47%

Precision bolt hole positioning system

- Effect: Flange matching time is reduced from 45 minutes to **12 minutes** (on-site measurement)

- CNC drilling machine processing: hole spacing error **≤±0.15mm** (ISO 5210 allows ±0.5mm)

Third-party testing

1, TÜV report

2, hydraulic bursting test: Carbon Steel Plate Type Flange measured bursting pressure ≥PN45

3, SGS chemical analysis:

- Sulfur and phosphorus content: S≤0.005% P≤0.015% (ultra-clean steel control)

So what are you waiting for? Come and get your exclusive solution