Name: CARBON STEEL FLANGE A694 GR F42 F46 F48 WNRTJ B16.5 CLASS1500
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A105 / A105N NACE0175-03 , BLIND / SO / WN / STEEL FLANGE , FF / RF / RTJ , CLASS150 TO CLASS15000 B16.5 & B16.47
Price: 150000 USD
Availability: InStock

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CARBON STEEL FLANGE A694 GR F42 F46 F48 WNRTJ B16.5 CLASS1500

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	API , ABS, DNV, GL , LR, NK
Model Number:	ASTM A105 / A105N NACE0175-03 , BLIND / SO / WN / STEEL FLANGE , FF / RF / RTJ , CLASS150 TO CLASS15000 B16.5 & B16.47

Payment & Shipping Terms:

Minimum Order Quantity:	1PC
Packaging Details:	PLYWOOD CASE,BUNDLE,PALLET
Delivery Time:	7DAYS
Payment Terms:	L/C, T/T

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Detailed Product Description

TYPE:	BLIND / SO / WN /PL	FACE:	FF,RF,RTJ,RING
STANDARD:	B16.5,B16.47 A B	CERTIFICATE:	API , ABS, DNV, GL , LR, NK
MATERIAL:	F42 F46 F48 F50 F52 F56 F60 F65 F70	PAINTING:	BLACK OR OTHER COLOR

CARBON STEEL FLANGE A694 GR F42 F46 F48 WNRTJ B16.5 CLASS1500

An ASTM A694 F42 flange is a high-strength forged steel flange used in high-pressure pipeline systems, particularly in the oil and gas industry. The "F42" designation means it has a minimum yield strength of 42,000 psi (approximately 290 MPa).

It is specifically designed to match the strength of API 5L X42 grade pipe, ensuring that the flange is not weaker than the pipe itself — a critical safety requirement in high-pressure transmission lines.

A694 F42 is not a low-temperature material. It is intended for normal to elevated temperature service. If your application involves low temperatures (below -20°F / -29°C), you should consider ASTM A350 LF2 or other low-temperature carbon steel materials instead.

Here is the comparison between ASTM A105andASTM A694 F42 flange materials

Quick Comparison Table

Aspect	ASTM A105 (General Carbon Steel Flange)	ASTM A694 F42 (High-Strength Pipeline Flange)
Primary Application	General-purpose carbon steel flange for ordinary industrial piping under normal temperature and pressure.	Specifically designed for high-pressure, long-distance transmission pipelines. Strength is matched to API 5L X42 grade pipes.
Minimum Yield Strength	Approx.250 MPa (36 ksi)	Approx.290 MPa (42 ksi)– hence the "F42" designation
Minimum Tensile Strength	Approx.485 MPa (70 ksi)	Approx.415 MPa (60 ksi)
Carbon (C) Content	Max0.35%	Max0.30%
Manganese (Mn) Content	Range0.60% – 1.05%	Max1.60%
Phosphorus (P) / Sulfur (S)	Max0.035%/0.040%	Max0.025%/0.025%(stricter purity control)
Common Pressure Ratings	Typically Class 150 to Class 2500, but most common in lower classes	Class 150 through Class 2500, often used in higher ratings
Typical Service	Water, oil, gas, steam in refineries, chemical plants, and general industry	High-pressure oil & gas transmission pipelines

In Summary

Choose A105if you're working with standard carbon steel pipes in general industrial services.
Choose A694 F42if you're building a high-pressure pipeline that uses X42 (or similar) grade steel pipe, because strength matching is critical for safety.

CARBON STEEL FLANGE A694 GR F42 F46 F48 WNRTJ B16.5 CLASS1500