20# 45# 16Mn Inch or metric diameter honed tubing GB/T3639-2000 Standard
| Place of Origin: | Zhejiang |
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Company Profile
| Location: | Wuxi, Jiangsu, China (Mainland) |
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| Business Type: | Manufacturer |
| Main Products: | Piston Rod, Precision Shafts, Steel Hollow Shaft |
Product Description
Inch or metric diameter honed tube, Inch tube High precision seamless honed tubes
Specifications
Material: 20# 45# 16Mn 27SiMn ST52,BK+S,DIN2391,ASTM A 106
Standard: GB/T8713-88 GB/T3639-2000 DIN 2391 EN10305
Straightness: 0.3~0.8mm/m
We are a professional hydrauli cylinder and chrome plated rod and shaft manufacturer that designs and manufactures Custom Hydraulic Cylinders used in a variety of applications. We believe that our expertise in specialized cylinders, coupled with our highly advanced equipments, enables us to provide you with superior transmission solutions.
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material |
hardness(HB) |
thickness(mm) |
internal diameter(mm) |
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20#/16Mn |
200-220 |
2.5~5.5 |
38.1 (1") |
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3~6.25 |
44.45 (1.75") |
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4~6.5 |
50.8 (2") |
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4.5~7 |
63.5 (2.5") |
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4.5~7.5 |
76.2 (3") |
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5~9.5 |
88.9 (3.5") |
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5~10.5 |
101.6 (4") |
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6~12 |
114.3 (4.5") |
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6.5~13 |
127 (5") |
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6.5~14.5 |
139.7 (5.5") |
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6.5~17 |
152.4 (6") |
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End Shape |
Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements |
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Surface |
Oiled, Galvanized, Phosphate Plastic injection etc |
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Technique |
Cold drawn |
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Application |
1. Automotive and mechanical pipes |
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2. Petroleum cracking pipes |
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3. High Pressure Boiler Pipe |
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4. Low and middle pressure fluid transportation pipeline |
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5. Chemical fertilizer equipment pipes |
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6. Heat exchange pipes |
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Delivery |
1. BK (+C) |
No heat treatment after last cold forming process. |
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2. BKW (+LC) |
After last heat treatment there is a light finishing pass . |
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3. BKS (+SR) |
After the final cold forming process the tubes are stress relieve annealed. |
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4. GBK (+A) |
After the final cold forming process the tubes are annealed in a controlled atmosphere. |
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5. NBK (+N) |
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. |
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Package |
1. Bundle Packing. |
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2.According to the customer request |
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3. Wrapped in waterproof paper. |
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4. Sackcloth with several steel strips. |
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