ASTM A106b/ API 5L/API 5CT 8"-60" X52 X60 X65 X70 X80 Black Casing LSAW ERW Welded Mild Ms Carbon Steel Pipe

Product Description

Product Description

Process	Size Range
	OD	WT	ID
Hot Rolling	25 mm ~ 530 mm	3 mm ~ 130 mm	/
Normal Cold Drawing	4 mm ~ 325 mm	0.5 mm ~ 30 mm	/
High Precision Cold Drawing	/	/	/
Cold Rolling	4 mm ~ 273 mm	0.3 mm ~ 25 mm	/
Hot Expansion	245 ~ 1020 mm	6 mm ~ 80 mm	/
Hot Extrusion	530 mm ~ 1420 mm	40 mm ~ 300 mm	/
Honing	/	3.5 mm ~ 40 mm	30 mm ~ 400 mm

Process	Tolerance
	OD		ID		WT (Normal)	WT (High Precision)
Hot Rolling	±1%		/		+12.5%/-10%	±10%
Normal Cold Drawning	±0.1 ~ 0.5 mm		±0.1 ~ 0.5 mm		±10%	±7.5%
High Precision Cold Drawing	±0.05 mm ~ 0.3 mm		±0.05 mm ~ 0.5 mm		±0.05 ~ 0.3 mm (maximum ±7.5%)
Cold Rolling	Two-roll Mill	Three-roll Mill	Two-roll Mill	Three-roll Mill	±0.05 mm ~ 0.3 mm, maximum ±7.5%
	±0.05 ~ 0.2 mm	±0.025 mm ~ 0.1 mm	±0.05 ~ 0.2 mm	±0.025 mm ~ 0.1 mm
Hot Expansion	±1.25%		/	/	±10 ~ 15%
Hot Extrusion	±1%		/	/	+12.5%/-10%, or ±10%
Honing	±0.1 mm ~ ±0.5 mm		H8,H9,H10		≤ 120 mm	±5%
					≥ 120 - 210 mm	±7.5%
					> 210 mm	±10%

Process	Length	Straightness
Hot Rolling	6000 mm +0 ~ 10 mm, Cut-to-length over 6000 mm +0 ~ 15 mm	≤3 mm/m
Normal Cold Drawning	6000 mm +0 ~ 5 mm, above 6000 mm +0 ~ 10 mm	1 mm/m
High Precision Cold Drawing	6000 mm +0 ~ 5 mm, above 6000 mm +0 ~ 10 mm	0.5 ~ 1.0 mm/m
Cold Rolling	6000 mm +0 ~ 5 mm, above 6000 mm +0 ~ 10 mm	0.5 mm ~ 1.0 mm/m
Hot Expansion	6000 mm +0 ~ 10 mm, above 6000 mm +0 ~ 15 mm	≤3 mm/m
Hot Extrusion	+0 ~ 15 mm	Less than or equal to 0.1% of the pipe length
Honing	/	0.5 mm ~ 1.0 mm/m

Process	Concentricity	Surface Roughness
Hot Rolling	/	/
Normal Cold Drawning	±7.5%	/
High Precision Cold Drawing	0.05 mm ~ 0.3 mm (maximum ±7.5%)	0.8 ~ 1.6 μm
Cold Rolling	0.05 ~ 0.3 mm, maximum ±7.5%	0.8 ~ 1.2 μm
Hot Expansion	/	/
Hot Extrusion	/	/
Honing	/	0.4 μm

FAQ

Q1: Does HYT's seamless steel pipe comply with international industry standards? What certifications do you hold?

A1: HYT seamless steel pipes strictly adhere to international standards such as ASTM, API 5L/5CT, and EN 10216. We are certified with ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and API Monogram License. Complete material test reports (MTRs) and third-party inspection certificates are provided to ensure compliance.

Q2: How do you guarantee key performance metrics like pressure resistance and corrosion resistance?
A2: We employ precision hot-rolled/cold-drawn processes combined with full-process non-destructive testing (e.g., ultrasonic testing, eddy current testing). Each batch undergoes chemical analysis and mechanical property tests (tensile/impact testing) to ensure performance. Customized material solutions are available for extreme conditions (e.g., high-temperature/pressure applications).

Q3: What is your lead time and delivery capability? Can you handle urgent orders?
A3: HYT maintains a large inventory and automated production lines, ensuring a 7-15 day lead time for standard orders. For urgent needs, our "Expedited Channel" enables shipment within 3 working days, supported by a global logistics network for efficient delivery.

Q4: Do you support customized specifications (e.g., non-standard sizes, special coatings)?
A4: Yes! We offer ODM/OEM services, tailoring outer diameter, wall thickness, length, surface treatment (galvanization, spray coating, etc.), and special alloy compositions. Our technical team responds within 48 hours with a solution.