201 Honed Precision Rectangular Boiler Square Galvanized Carbon Seamless Stainless Copper Brass Titanium Alloy Steel Tube

Product Description

201 Honed Precision Rectangular Boiler Square Galvanized Carbon Seamless Stainless Copper Brass Titanium Alloy Steel Tube

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.