Honed Pipe

35# Honed Pipe
Honed Pipe
It has the characteristics of no oxide layer on the inner and outer walls, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no crack in flaring and flattening, etc. it is mainly used to produce pneumatic or hydraulic components, such as air cylinders or oil cylinders, which can be seamless tubes. Its chemical composition includes carbon C, silicon Si, manganese Mn, sulfur s, phosphorus P, chromium and chromium.
Parameter
Chemical Composition
Mechanical Properties
ParameterDescription
MaterialCommonly used materials include carbon steels and alloy steels such as 10#, 20#, 35#, 45#, 16Mn, 27SiMn, GCr15, 20Cr, 40Cr, 35CrMo, 42CrMo, as well as stainless steel materials like 304 stainless steel and 316L stainless steel.
Specification and SizeThe inner diameter usually ranges from 20mm to 600mm, the wall thickness is from 2mm to 100mm, and the length is generally from 2m to 12m.
Inner Hole PrecisionGenerally from H5 to H8.
Inner Hole RoughnessRa ≤ 0.63µm, and some can reach Ra ≤ 0.08µm.
Straightness≤ 0.3mm/m.
RoundnessCan reach 0.0005 - 0.005mm.
CylindricityUsually ≤ 0.01mm.
Dimensional AccuracyCan reach 0.005 - 0.025mm.
Tensile StrengthFor example, the tensile strength of 20# steel is about 420MPa - 540MPa.
Execution StandardGB8713 - 88, etc.
GradeCSiMnPSCuCrNi
Cor-ten A0.120.25-0.750.20-0.500.01-0.20.030.25-0.550.5-1.250.65
Cor-ten B0.160.3-0.50.8-1.250.030.030.25-0.400.4-0.65≤0.4
SPA-H0.120.2-0.750.600.07-0.150.0350.25-0.550.3-1.250.65
9CuPCrNi-A0.120.2-0.750.20-0.500.07-0.150.0400.25-0.550.3-1.250.65
Q235NH0.130.10-0.400.20-0.600.030.0300.25-0.550.40-0.800.65
Q295NH0.150.10-0.500.30-1.000.030.0300.25-0.550.40-0.800.65
Q355NH0.160.50.50-1.500.030.0300.25-0.550.40-0.800.65
Q415NH0.120.651.100.0250.0300.20-0.550.30-1.250.12-0.65
Q460NH0.120.651.500.0250.0300.20-0.550.30-1.250.12-0.65
Q500NH0.120.652.00.0250.0300.20-0.550.30-1.250.12-0.65
Q550NH0.120.652.00.0250.0300.20-0.550.30-1.250.12-0.65
Q265GNH0.120.10-0.400.20-0.500.07-0.120.0200.2-0.450.30-0.650.25-0.50
Q295GNH0.120.10-0.400.20-0.500.07-0.120.0200.25-0.450.30-0.650.25-0.50
Q310GNH0.120.25-0.750.20-0.500.07-0.120.0200.25-0.550.30-1.250.65
Q355GNH0.120.20-0.751.000.07-0.150.0200.25-0.550.30-1.250.65
Q345GNHL0.120.25-0.750.20-0.500.07-0.150.0350.25-0.550.30-0.650.65
Q295GQR20.120.10-0.400.20-0.500.06-0.120.0200.25-0.450.30-0.650.25-0.5
Q295GQR30.120.20-0.400.25-0.550.06-0.120.0200.25-0.50------
Q345NQR20.120.25-0.750.20-0.500.06-0.120.0200.25-0.500.3-1.250.12-0.65
Q345NQR30.120.20-0.500.25-0.700.06-0.120.0200.25-0.50------
Q400NQR10.120.751.100.0250.0080.25-0.550.3-1.250.12-0.65
Q450NQR10.120.751.500.0250.0080.25-0.550.3-1.250.12-0.65
Q500NQR10.120.752.000.0250.0080.25-0.550.3-1.250.12-0.65
Q550NQR10.160.752.000.0250.0080.25-0.550.3-1.250.65
Carbon content (wt.%)MicrostructurePropertiesExamples
Low-carbon steel< 0.25Ferrite, pearlite

Low hardness and cost. High ductility, 

toughness, machinability and weldability

AISI 304, ASTM A815, AISI 316L
Medium-carbon steel0.25 – 0.60Martensite

Low hardenability, medium strength,

 ductility and toughness

AISI 409, ASTM A29, SCM435
High-carbon steel0.60 – 1.25PearliteHigh hardness, strength, low ductilityAISI 440C, EN 10088-3

PRODUCT DISPLAY

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WORKSHOP PACKAGING

Packaging and loading:

Packaging: According to customers' needs, use wrapping paper. If the transportation period exceeds 10 days or encounters special climate, we will use waterproof packaging and add plastic film to prevent moisture, water and rust.

Loading: We use the wooden pallet,triangular wood to fix the coil,and the steel wire rope to hold on the both side. That can prevent from the crush injury effectively.

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ABOUT US

We have advanced production equipment, strict quality inspection process and professional team. We have the national ISO certification and CE certification, registered trademarks, and ensure the high quality and quantity of products. At the same time, we also provide customers with various customized services to meet all your personalized needs, and are committed to making every customer satisfied with our products.

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FAQ

Q1:Accepted delivery terms

A1:EXW, FOB, CFR, CIF, FCA, FSA, CPT, CIP, DAT, DAP, DDP, DDU

Q2:Accepted Payment Types

A2:T/T, L/C

Q3:What is your delivery time ?

A3:8000 tons of inventory guarantee immediate delivery, Non-stock products, delivery within 5-7 days.

Q4:Accepted payment currencies

A4:CNY, USD, EUR, JPY, CAD, AUD, HKD, GBP, CHF

Q5:What standard steel can you provide?

A5:We can provide various standards, such as: AISI, ASTM, ANSI, ASME, UNS, SAE, DIN, EN, GB, JIS, etc

Q6:How do you guarantee the product quality?

A6:CE, ISO certificate, supporting any third party inspection. A pre-production sample before mass production, final Inspection before shipment.

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