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Xiamen M20 Threaded Bar
QS Fastener: M20 Threaded Bar
Product: Xiamen M20 Threaded Bar
Color: Blue
Coating: PTFE
Thread Standard: Metric ASME B1.13M
Type: Full Length Threaded
Total Length: 80 mm
Material: ASTM A193 Gr. B7
Color: Blue
Coating: PTFE
Thread Standard: Metric ASME B1.13M
Type: Full Length Threaded
Total Length: 80 mm
Material: ASTM A193 Gr. B7
Quantity
As a fastener engineer, I specify that the M20 Threaded Bar is a precision-engineered component manufactured from ASTM A193 Gr. B7 – a chromium-molybdenum alloy steel quenched and tempered for high tensile strength (minimum 860 MPa) and yield strength (720 MPa). This material is the industry benchmark for bolting in pressure vessels, flanges, and piping systems operating under elevated temperatures up to 450°C.
This M20 threaded rod is fully threaded along its entire 80 mm length, conforming strictly to the metric ASME B1.13M standard (M20 x 2.5 pitch). Full-length threading offers maximum versatility: it allows for custom nut positioning, double-nut locking, and precise adjustment in confined assemblies where standard stud bolts cannot be used.
Advanced PTFE Coating & Identification
The blue PTFE coating is not cosmetic—it is a functional layer applied via sintered fusion. This M20 studding provides:
- Superior corrosion resistance against H₂S, seawater, and chemical reagents (pH 2–12).
- Low friction coefficient (0.05–0.10) which stabilizes torque-tension relationships, reducing scatter in preload during hydraulic tensioning.
- Extreme temperature tolerance from -190°C to +260°C.
The distinctive blue color enables rapid visual inspection and segregation from uncoated or zinc-plated bars on-site, reducing installation errors.
The blue PTFE coating is not cosmetic—it is a functional layer applied via sintered fusion. This M20 studding provides:
- Superior corrosion resistance against H₂S, seawater, and chemical reagents (pH 2–12).
- Low friction coefficient (0.05–0.10) which stabilizes torque-tension relationships, reducing scatter in preload during hydraulic tensioning.
- Extreme temperature tolerance from -190°C to +260°C.
The distinctive blue color enables rapid visual inspection and segregation from uncoated or zinc-plated bars on-site, reducing installation errors.
Application Scenarios
This M20 all-thread bar is ideally deployed in:
- Oil & Gas: Flange bolting for offshore platforms and refinery heat exchangers.
- Chemical Processing: Pump and valve mounting in aggressive media environments.
- Power Generation: Turbine casing studs and boiler access doors.
- General Engineering: Heavy machinery anchor bolts and structural tension links.
This M20 all-thread bar is ideally deployed in:
- Oil & Gas: Flange bolting for offshore platforms and refinery heat exchangers.
- Chemical Processing: Pump and valve mounting in aggressive media environments.
- Power Generation: Turbine casing studs and boiler access doors.
- General Engineering: Heavy machinery anchor bolts and structural tension links.
Technical Compliance & Quality
Every M20 threaded bar is traceable to mill test reports (MTR) and undergoes hardness (HRC 22–32) and dimensional verification per ASME B18.31.1M. The PTFE thickness is controlled to 25–40 μm to maintain thread class 6g fit.
Every M20 threaded bar is traceable to mill test reports (MTR) and undergoes hardness (HRC 22–32) and dimensional verification per ASME B18.31.1M. The PTFE thickness is controlled to 25–40 μm to maintain thread class 6g fit.
Why Choose This M20 Threaded Rod?
Combining B7 strength, PTFE chemical resistance, and metric ASME compliance, this 80 mm blue threaded bar delivers reliable clamping force, extended service life, and reduced galling during installation. For critical bolting where safety and uptime are paramount, this engineered solution outperforms standard carbon steel rods.
Combining B7 strength, PTFE chemical resistance, and metric ASME compliance, this 80 mm blue threaded bar delivers reliable clamping force, extended service life, and reduced galling during installation. For critical bolting where safety and uptime are paramount, this engineered solution outperforms standard carbon steel rods.
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