Precision Seamless Small Caliber Steel Pipe

Precision seamless small caliber steel pipes integrate the "seamless structural advantage" of traditional seamless pipes with "high-precision dimensional control" and "refined surface/mechanical properties," making them irreplaceable in high-end fields requiring strict specifications. Their core product features are detailed as follows:

1. Seamless Integral Structure: Outstanding Mechanical Strength & Pressure Resistance

• No Weld Weak Points: Manufactured via advanced seamless processes (e.g., cold drawing, hot extrusion, piercing-rolling), the pipe has no longitudinal or circumferential welds. This eliminates the risk of stress concentration, cracks, or leakage at welds—common issues with welded pipes—ensuring uniform load distribution across the entire pipe body.

• High Pressure & Impact Resistance: The seamless structure enables excellent mechanical performance: tensile strength typically ranges from 415MPa to 800MPa, yield strength ≥235MPa, and it can withstand working pressures up to 30MPa (depending on material and wall thickness). It is ideal for high-pressure fluid transmission (e.g., hydraulic oil, high-purity gas) and high-stress scenarios (e.g., mechanical hydraulic cylinders).

• Stable Structural Integrity: Even under repeated bending, vibration, or temperature fluctuations, the seamless pipe maintains structural stability without deformation or fracture, reducing maintenance costs and failure risks in long-term operation.

2. Ultra-High Dimensional Precision: Meets Strict Assembly & Matching Requirements

• Tight Tolerance Control: Targeting "small caliber" (usually outer diameter ≤50mm, inner diameter ≤40mm), the pipe achieves industry-leading dimensional accuracy:

• Outer diameter (OD) tolerance: ±0.05mm–±0.1mm (far lower than ordinary seamless pipes’ ±0.5mm tolerance);

• Inner diameter (ID) tolerance: ±0.03mm–±0.08mm;

• Wall thickness uniformity: Deviation ≤5% (avoids uneven stress caused by thick-thin walls).

• Consistent Straightness: After precision straightening, the straightness error is ≤0.5mm/m, ensuring smooth installation in compact spaces (e.g., automotive engine compartments, precision instrument pipelines) and avoiding assembly jams caused by bending.

• Standardized Sizing: Complies with international standards (e.g., ASTM A213, DIN 2391) for caliber, wall thickness, and length, enabling direct matching with precision components (e.g., valves, connectors) without secondary processing.

Product Display

item	value
Section Shape	ROUND
Surface Treatment	Hot Rolled
Oiled or Non-oiled	Slightly Oiled
Place of Origin	China
Alloy Or Not	Is Alloy
Standard	DIN
Grade	Q195/Q235/Q345
Delivery Time	15-21 days
Tolerance	±1%
Invoicing	by actual weight
Brand Name	ZCXH
Application	Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe
Special Pipe	Other, EMT Pipe, Thick Wall Pipe
Thickness	2.11-300mm
Length	12M, 6m, 6.4M
Certificate	ce, Bsi, SNI, BIS, SASO, rohs, API
Processing Service	Welding, Punching, Cutting, Bending, Decoiling
Product name	Hot Rolled Seamless Pipes
Standard	ASTM A106-2006
Material	10#.20# 45# 16Mn
Keyword	Seamless Steel Carbon Pipe
Type	Seamless Round Steel Pipe
MOQ	5tons
Package	Standard Seaworth Packing
Sample	Provide
Size	Customized Size
PRICE TERM	CIF CFR FOB EXW

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

How long is your delivery time?

Samples:7-10working days;bulk production:10-15 working days. lt also should bedepend on what kind of product and the quantity you require

What is your terms of payment?

T/T,30% as deposit,and 70% balancebefore delivery

How can i get the quotation?

Please send us information for quote; drawing,material,weight,quantity andrequest,we can accept PDF.SGS,DwGSTEP file format, lfyou don't have drawing,please send the sample to us,we can quote base on your sample too