Hot Rolled Black Pipe - Schedule (40) 4 Inch
| Weight | 10.790000 |
|---|---|
| bobco_dimensions_width | 4 |
| bobco_dimensions_length | 252 |
| bobco_thickness | 40 |
| price_21to50 | 0 |
| price_11to20 | 0 |
| price_6to10 | 0 |
| addon_charges_fraction | 1 |
| addon_charges_percentage | 20 |
| addon_charges_simple | 20 |
| MAX LENGTHS | 21 |
| FULL LENGTH PRICE | 273 |
| Thickness | 40 |
| Dimension Length | 252.000000 |
| Dimension Width | 4.000000 |
| Dimension Height | 4.000000 |
A53 Grade B Hot Rolled Black Pipe - 4 Inch Schedule 40 x 252"
This 4 inch Schedule 40 black pipe is a large-diameter carbon steel product designed for fluid conveyance and structural use. Conforming to ASTM A53 Grade B, it provides 60,000 PSI tensile strength and excellent weldability for building frames and process piping. In stock Los Angeles.
- A53 Grade B Steel Construction
- ASTM A53 Certified
- 60,000 PSI Tensile Strength
- Excellent Weldability
Hot rolled black pipe is manufactured to ASTM A53 Grade B standards for pressure and mechanical applications. The term 'black' refers to the dark iron oxide scale on its surface, a byproduct of the hot rolling process. This finish offers minimal corrosion resistance. The pipe is valued for its strength, durability, and excellent weldability without requiring pre-heating.
As a large-diameter pipe, this 4-inch Schedule 40 size is commonly used for main water lines (non-potable), industrial process piping for fluids and gasses, structural columns in construction, and heavy-duty framework for industrial supports and scaffolding.
Specifications
- Material: A53 Grade B Steel
- Standards: ASTM A53
- Strength/Tensile: 60,000 PSI
- Dimensions: 4" NPS, Schedule 40 Wall (0.237"), 252" Length
- Finish: Black (Uncoated), Hot Rolled
- Certifications: MTR Available
Applications
- Construction: Structural columns & scaffolding - provides high load-bearing capacity for its weight.
- Industrial: Main water lines & process piping - transports non-corrosive fluids and gasses at pressure.
- Fire Protection: Fire sprinkler mains - meets ASTM A53 standards required for fire suppression systems.
- Fabrication: Heavy equipment frames & supports - strong and easily welded into robust structures.
Target Users
Pipefitters, welders, structural engineers, and general contractors rely on A53B black pipe for its strength and versatility in industrial and construction projects throughout the Los Angeles area.
Finish Options
This product comes standard with a black, uncoated hot rolled finish. The surface has a dark iron oxide scale. For corrosion protection, the scale must be removed before painting, powder coating, or galvanizing. Contact our Los Angeles sales team for custom finishing inquiries.
How to Measure
Pipe is measured by its Nominal Pipe Size (NPS) and Schedule. NPS is a standard for pipe sizes used for high or low pressures. The schedule number indicates the wall thickness; a higher number means a thicker wall.
Example: To order this pipe, specify "A53B Black Pipe, 4 inch NPS, Schedule 40 x 252" length".
Order Checklist
- Product name and required dimensions (4" NPS, Sch 40 x 252")
- Material specification and quantity
- Confirm grade (A53 Grade B) meets requirements
- Surface finish requirements (Hot Rolled Black)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Hot Rolled Black Pipe - Schedule (40) 4 Inch
- Material
- A53 Grade B Steel
- Standards
- ASTM A53
- Key Properties
- 60,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Structural columns, Industrial piping, Fire sprinkler mains
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock Hot Rolled Black Pipe in nominal sizes from 1/2" to 4" in Schedule 10 and Schedule 40. This 4" Schedule 40 x 252" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing-
Hot Rolled Black Pipe - Schedule (40) 4 Inch$72.84
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