STPG38 Bend Pipe

Seamless And Welded Stpg38 Carbon Steel Bend Pipes For Smooth Flow

Stpg38 bend pipes, crafted from jis g3454 carbon steel, designed for corrosion-resistant industrial piping, automotive, and structural applications with smooth flow and durability.

TPG38 Bend Pipe Carbon Steel Bend Pipe Boiler Pipeline Protection Corrosion Resistance +2 More

STPG38 Bend Pipe

Seamless And Welded Stpg38 Carbon Steel Bend Pipes For Smooth Flow

Stpg38 bend pipes, crafted from jis g3454 carbon steel, designed for corrosion-resistant industrial piping, automotive, and structural applications with smooth flow and durability.

TPG38 Bend Pipe Carbon Steel Bend Pipe Boiler Pipeline Protection Corrosion Resistance +2 More

STPG38 Bend Pipe for Corrosion-Resistant Industrial Piping Solutions

STPG38 Bend Pipes are premium carbon steel pipe fittings compliant with JIS G3454, designed for pressure service in industrial piping systems up to 350°C. Made from carbon steel with a maximum carbon content of 0.25%, these bends offer excellent strength, erosion resistance, and corrosion resistance, making them ideal for boiler pipeline protection in industries like oil and gas, power generation, plumbing, and automotive.

Manufactured through hot induction bending or cold-forming, STPG38 bend pipes are available in seamless and welded configurations. With bend radii like 3D, 5D, or 10D, they ensure minimal turbulence and pressure loss compared to standard elbows. Available in angles of 90°, 45°, 30°, or custom designs, and in sizes from 1/2” to 48” (DN15 to DN1200) with wall thicknesses from SCH 10 to SCH 80, they cater to diverse piping needs.

STPG38 bend pipes support welding, bending, and flanging, with excellent weldability due to low carbon content. They undergo stringent testing, including chemical analysis (C max 0.25%, Si max 0.35%, Mn 0.30-0.90%, P max 0.040%, S max 0.040%), tensile testing (≥370 N/mm²), and nondestructive tests (ultrasonic or eddy current), ensuring compliance with JIS G3454 for high-pressure applications.

Coated with galvanizing, FBE, or 3LPE, STPG38 bend pipes enhance corrosion resistance, protecting against rust and chemical exposure. Their smooth interior surfaces reduce flow resistance, making them suitable for boiler pipeline protection, exhaust systems, handrails, and structural applications like trailer frames and awnings.

For engineers seeking cost-effective and reliable industrial piping solutions, STPG38 bend pipes deliver smooth flow, durability, and performance, addressing pipeline corrosion, mechanical stress, and high-temperature challenges across various applications.

Chemical Composition of JIS G3454 STPG38
Grade	C (% max)	Si (% max)	Mn (%)	P (% max)	S (% max)
STPG38	0.25	0.35	0.30-0.90	0.040	0.040

Mechanical Properties of JIS G3454 STPG38
Grade	Tensile Strength (MPa min)	Yield Strength (MPa min)	Elongation (% min)
STPG38	370	215	30

STPG38 Bend Pipe Specifications
Specification	Details
Standard	JIS G3454
Material	Carbon Steel (STPG38/STPG370)
Chemical Composition	C max 0.25%, Si max 0.35%, Mn 0.30-0.90%, P max 0.040%, S max 0.040%
Mechanical Properties	Tensile Strength ≥370 N/mm², Yield Strength ≥215 N/mm², Elongation ≥25%
Sizes	1/2” to 48” (DN15 to DN1200)
Wall Thickness	SCH 10 to SCH 80
Bend Radii	3D, 5D, 10D, or Custom
Angles	90°, 45°, 30°, or Custom
Manufacturing	Hot Induction Bending, Cold-Forming, Seamless, Welded
Coatings	Galvanizing, FBE, 3LPE
Testing	Chemical Analysis, Tensile, Flattening, Nondestructive (Ultrasonic/Eddy Current), Hydrostatic

Comparison of STPG38 Bend Pipes with Elbows
Feature	STPG38 Bend Pipes	STPG38 Elbows (JIS G3454)
Bend Radius	3D, 5D, 10D, or Custom	1D (SR), 1.5D (LR)
Flow Characteristics	Smooth, low turbulence	Higher turbulence
Size Range	1/2” to 48” (DN15 to DN1200)	1/2” to 24” (DN15 to DN600)
Applications	Long pipelines, automotive, plumbing	Compact piping systems
Corrosion Resistance	Enhanced by galvanizing/FBE/3LPE	Enhanced by galvanizing/FBE/3LPE
Key Advantage	Reduced pressure loss, smoother flow	Compact, cost-effective for tight spaces

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A curated list of long-tail keywords for STPG38 bend pipes, covering diverse bending applications, specifications, and material properties.

Standards and Specifications

• STPG38 bend pipe JIS G3454
• Corrosion-resistant STPG38 pipe specifications
• Industrial piping STPG38 bend tolerances
• Custom STPG38 bend pipe dimensions

Ornamental and Structural Bending

• Ornamental iron work STPG38 bending
• STPG38 hand rail bending
• Angle iron STPG38 bending
• STPG38 bar twisting for ornamental pickets

Automotive and Racing

• STPG38 exhaust pipe bending
• STPG38 roll cage bending
• STPG38 performance racing chassis bending
• Custom STPG38 exhaust bending

Industrial and Plumbing

• STPG38 plumbing pipe bending
• STPG38 refinery pipe bending
• STPG38 boiler pipeline protection bending
• STPG38 heat exchanger bending

Manufacturing Techniques

• STPG38 seamless bend pipe
• STPG38 welded bend pipe
• STPG38 mandrel pipe bending
• STPG38 non-mandrel pipe bending

Specialty Applications

• STPG38 trailer frame bending
• STPG38 furniture pipe bending
• STPG38 sign frame bending
• STPG38 awning bending

Note: STPG38 bend pipes are designed for smooth flow and corrosion-resistant industrial piping across various applications. Contact a certified supplier for detailed specifications.

An STPG38 bend pipe is a carbon steel pipe fitting per JIS G3454, with a larger bend radius (e.g., 3D, 5D) designed for industrial piping systems, offering smooth flow and corrosion resistance for applications like oil and gas, plumbing, and automotive.

STPG38 bend pipes have larger radii (3D, 5D) for smoother flow and reduced pressure loss, while elbows (JIS G3454) have shorter radii (1D, 1.5D) for compact systems. Both offer corrosion resistance with coatings like galvanizing.

STPG38 bend pipes are available in 90°, 45°, 30°, or custom angles, providing flexibility for industrial piping systems requiring smooth flow transitions.

STPG38 bend pipes are made from carbon steel per JIS G3454 (C max 0.25%, Si max 0.35%, Mn 0.30-0.90%), offering corrosion resistance and strength for industrial piping.

STPG38 bend pipes are produced via hot induction bending or cold-forming, in seamless or welded forms, ensuring strength and erosion resistance for industrial piping applications, with coatings for corrosion protection.

Quality is ensured through: - Chemical Analysis: Verifies composition (C max 0.25%, etc.).
- Tensile Testing: Ensures ≥370 N/mm² strength.
- Nondestructive Testing: Ultrasonic or eddy current tests.
- Hydrostatic Testing: Verifies pressure integrity per JIS G3454.

STPG38 bend pipes offer smooth flow, high strength, and corrosion resistance, making them ideal for boiler pipeline protection in oil and gas, plumbing, and automotive industries.

Coatings include: - Galvanizing
- FBE coating
- 3LPE coating
These enhance corrosion resistance for boiler pipeline protection.

A 3D STPG38 bend pipe has a radius three times the pipe diameter, while a 5D bend has a radius five times the diameter. Larger radii (e.g., 5D) provide smoother flow and less pressure loss in industrial piping.

Calculate the arc length: L = R * θ * π / 180 (R = bend radius, θ = angle in degrees). Weight (kg) = (D * a * 0.02466 * L) / 1000, where D is pipe diameter and a is wall thickness, ensuring accurate sizing for industrial piping.

Common Bend Radii

3D Bends

Radius is three times the nominal diameter. Compact design for space-limited applications.

Moderate Flow

5D Bends

Radius is five times the nominal diameter. Optimal balance of flow and space requirements.

Smooth Flow

10D Bends

Radius is ten times the nominal diameter. Maximum flow efficiency with minimal pressure drop.

Optimal Flow

Radius Calculation Example

For a 10-inch diameter pipe with a 5D bend:

Centerline Radius = 5 × 10 inches = 50 inches

The radius calculation helps determine the space requirements and flow characteristics of the bend.

Material Type	Grades & Standards
Stainless Steel	ASTM A403 WP Gr. 304, 304L, 304H, 309, 310, 316, 316L, 316Ti, 317L, 321, 347, 347H, 904L
Carbon Steel	ASTM A 234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Low-Temperature Carbon Steel	ASTM A420 WPL3, A420 WPL6
Alloy Steel	ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
Duplex & Super Duplex Steel	ASTM A815, ASME SA 815 UNS 31803, UNS 32205 (Dual Certified)

STPG38 Bend Pipe

STPG38 Bend Pipe

STPG38 Bend Pipe for Corrosion-Resistant Industrial Piping Solutions

Important Bending Variables

Centerline Radius (CLR)

Outside Diameter (OD)

Wall Thickness (WT)

Spring Back Consideration