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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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The Seamless Steel Tubes are produced by Cold Drawn or Cold
Rolled, for small diameters below 88.9mm, the bigger diameter
are produced by hot rolling.
These steel tubes will be used for mechanical engineerings, could
be also used as mother tube for further cold drawn production to
achieve better tolerance and surface smoothness as precision steel
tubes.
Classification of steel grades and delivery condition
| Steel grade | Normal delivery conditiona | Classification in accordance with EN 10020 | ||
| Steel name | Steel number | |||
E235 | 1.0308 | +AR | | |
| E470 | 1.0536 | +AR | ||
E275K2 | 1.0456 | +N | ||
| Alloy quality steel | ||||
| E460K2 | 1.8891 | +N | Alloy quality steel | |
| E590K2 | 1.0644 | +QT | Non-alloy quality | |
| E730K2 | 1.8893 | +QT | Alloy quality steel | |
| C22E | 1.1151 | | | |
| C35E | 1.1181 | |||
| C45E | 1.1191 | |||
| C60E | 1.1221 | |||
| 38Mn6 | 1.1127 | |||
| 41Cr4 | 1.7035 | | | |
| 25CrMo4 | 1.7218 | |||
| 30Cr Mo4 | 1.7216 | |||
| 34Cr Mo4 | 1.7220 | |||
| 42Cr Mo4 | 1.7225 | |||
| 36CrNi Mo4 | 1.6511 | |||
| 30CrNi Mo8 | 1.6580 | |||
| 41NiCrMo7-3-2 | 1.6563 | |||
| C10E | 1.1121 | | | |
| C15E | 1.1141 | |||
| C15R | 1.1140 | |||
| 16MnCr5 | 1.7131 | |||
| 16 MnCrS 5 | 1.7139 | | ||
| 20 NiCrMo2-2 | 1.6523 | |||
| 20 NiCrMoS 2-2 | 1.6526 | |||
Chemical Composition for non-alloy quality steel, in % by mass a
| Steel grade | C | Si | Mn | P | S | Other elements | ||||
| Steel name | Steel number | min | max | min | max | min | max | max | max | |
| E235 | 1.0308 | 0.17 | - | 0.35 | - | 1.20 | 0.030 | 0.035 | ||
| E275 | 1.0225 | 0.21 | - | 0.35 | - | 1.40 | 0.030 | 0.035 | ||
| E315 | 1.0236 | 0.21 | - | 0.30 | - | 1.50 | 0.030 | 0.035 | ||
| E355 | 1.0580 | 0021 | - | 0.55 | - | 1.60 | 0.030 | 0.035 | ||
E470 | 1.0536 | 0.16 | 0.22 | 0.10 | 0.50 | 1.30 | 1.70 | 0.030 | 0.035 | |
