ASTM A106-A Honed Tube

Tolerance INT: H7,H8,H9,H10
Tolerance EXT: DIN2391, EN10305, GB/T 1619
Material: ST52,CK45,4140,SCM440,16Mn,42CrMo,E355,Stainless Steel 304/316,Duplex 2205,etc.
Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends.
Packing: Bundle with steel strip and PE sheet or wooden case
Delivery Condition: BK, BK+S, GBK, NBK

Classification :

PRODUCT DETAILS

Description

Honing tube is a high-precision cold drawn seamless steel tube that obtains an exceptionally smooth and precisely sized inner surface through honing processing. It has ultra-high precision, mirror level smoothness, high wear resistance, and good mechanical properties, and is widely used in high-end industrial fields such as hydraulic cylinders, cylinders, and engineering machinery.

Standard

Chemical Properties

Material C% Mn% Si% S% P%
20# 0.17-0.23 0.35-0.65 0.17-0.37 ≤0.035 ≤0.035
ST45 ≤0.21 ≥0.4 ≤0.35 ≤0.025 ≤0.025
E255 ≤0.21 0.4-1.1 ≤0.35 ≤0.025 ≤0.025
45# 0.42-0.50 0.50-0.80 0.17-0.37 ≤0.035 ≤0.035
Q345B ≤0.20 ≤1.70 ≤0.50 ≤0.035 ≤0.035
E355 ≤0.22 ≤1.6 ≤0.55 ≤0.025 ≤0.025
ST52 ≤0.22 ≤1.6 ≤0.55 ≤0.04 ≤0.04
25Mn 0.22-0.29 0.70-1.0 0.17-0.37 ≤0.035 ≤0.035
27SiMn 0.24-0.32 1.10-1.40 1.10-1.40 ≤0.035 ≤0.035

Mechanical Properties

Final Supply
Condition
Cold finished
(Hard)(BK)
Cold drawn and stress-relieved (BK+S or + SR) Hardness HB
Parameters T. S
obN/mm²
Elongation
δ5%
T. S
obN/mm²
Y. S
OsN/mm²
Elongation
δ5%
20#(A106B,ST45,E255) >=550 >=8 >=520 >=375 >=12 175
45#(CK45) >=650 >=5 >=600 >=500 >=10 190
Q345B(ST52,E355) >=640 >=5 >=600 >=520 >=15 190
25Mn >=640 >=5 >=600 >=510 >=15 195
27SiMn >=840 >=5 >=720 >=600 >=10 210

 

Popular Standard and Steel Grade
EN10305-1 E355 E235E410E470 C45E
DIN2391-1 ST52 ST45 ST52.3
ASTM A519 SAE1020 SAE1045 SAE1026
GB/T 20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn

 

Heat Treating Method/ Delivery Condition
BK BKS GBK NBK Q+T
+C +SR +A +N Q+T
Cold drawn Stress relieved Annealed Normalized QUENCHED+TEMPERED

 

Specification

ID Tolerance for ID (μm)
H7 H8 H9 H10
30 +21
0
+33
0
+52
0
+840
>30-50 +25
0
+39
0
+62
0
+1000
>50-80 +30
0
+46
0
+740 +1200
>80-120 +35
0
+54
0
+870 +1400
>120-180 +40
0
+63
0
+100
0
+1600
>180-250 +46
0
+72
0
+115
0
+1850
>250-315 +52
0
+81
0
+1400 +2100
>315-400 +57
0
+89
0
+1700 +2300

 

Part of Size List (ID*OD)
40*50 100*127 240*273
40*55 110*130 250*266
50*60 120*140 250*280
50*63 120*145 250*300
60*70 125*140 280*323
60*73 125*145 280*325
63*73 140*165 300*320
63*76 140*168 300*356
70*80 150*180 320*340
70*82 160*184 320*356
70*85 160*194 320*370
80*90 170*200 350°370
80*92 180*210 400*420
80*95 200*216  
80*100 200*220  
90*102 200*232  
90*105 200*245  
100*114 220*250  
100*121 220*273  

 

PACKAGING AND SHIPPING

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Customer Visit

FACTORY WORKSHOP

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Factory Appearance

APPLICATION FIELD

Energy Transmission

Energy Transmission

Construction Engineering

Construction Engineering

Energy Transmission

Energy Transmission

Power Equipment

Power Equipment

Interior Decoration

Interior Decoration

Architectural Decoration

Architectural Decoration

FAQ

Do you have a factory?

Do you have a factory?

Yes, we have a factory. Welcome to visit us!Factory visits are available via video if needed.
Yes, we have a factory. Welcome to visit us!Factory visits are available via video if needed.
Can you provide samples?

Can you provide samples?

Of course, we provide samples.
Of course, we provide samples.
What services do you provide? A: OEM, ODM.

What services do you provide? A: OEM, ODM.

OEM, ODM.
OEM, ODM.
Which port do you ship from?

Which port do you ship from?

Qingdao Port, Tianjin Port, or according to customer requirements.
Qingdao Port, Tianjin Port, or according to customer requirements.
What is your delivery time?

What is your delivery time?

In-stock products: 3-7 days after payment; Customized products: usually 7-15 working days, or according to customer requirements.
In-stock products: 3-7 days after payment; Customized products: usually 7-15 working days, or according to customer requirements.
What types of payment methods do you support?

What types of payment methods do you support?

T/T, L/C , and cash are all accepted. Please contact us if you have other payment methods.
T/T, L/C , and cash are all accepted. Please contact us if you have other payment methods.

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