COLD FORMING MATERIALS
上海の睿雄のグループは、中国のコールドヘッド品質の鋼線に焦点を当てているベンチマーク企業です。経営陣全体が業界で20年の経験を持っています。私たちは自動車業界の多くのTier 1サプライヤーと良好な関係を築いており、すべてのワイヤーロッドはブランドの製鉄所から調達されています。すべての注文は100% 追跡可能です。
: +AC または +AC+PE
: +AR+C+AC
: +AR+C+AC+LC
: +AC+C
- : 継続的で滑らかな
- : 縫い目、重なり、ピット、引っかき傷、傷跡のない
- : さびの自由
- : 自動車産業
- : 建設業界
- : 機械産業
- : その他の産業
| Heat-treatment condition at delivery | Symbo | Products form a | Applicable requirements in cases where the steel concerned has been ordered with reference to the steel names indicated in | ||||||||||
| Wire rod | Bar | Wire | Tables C.2,C.3,C.4, C.5 or C.6 | Tables C.2,C.3,C.4,C.5,C,6,C.Z C.8 or C.9 | Tables C.2,C.3,C.4,C.5,C.6 or C.10 | Optional | |||||||
| As hot-rolled or peeled | +AR or +PE | X | X | X | Chemical compo- sition as speci- fied in Tables C.2 and C.3 | Me- chanical properties as spec- ified in Tables C.4. C.5 and C.6 | Chemical compo- sition as speci- fied in Tables C.2 and C.3 | Me- chanical properties as spec- ified in Tables C.4, C.5 and C.6 | Values for harden- ability according to Tables C.Z C.8 and C.9 | Chemical compo- sition as speci- fied in Tables C.2 and C.3 | Me- chanical properties as spec- ified in Tables C.4. C.5 and C.6 | Mini- mum core hardness and max- imum diameter accord- ing to TableC.10 | Supplementa- ry or special requirements as specified in Annex Eb |
| Cold drawn | +AR +C | — | X | X | |||||||||
| Cold drawn + spheroidized | +AR+C+ AC | — | X | X | |||||||||
| Cold drawn + spheroidized + skin passed | +AR+C +AC +LC | — | X | X | |||||||||
| Spheroidized or spheroidized + peeled | +AC or +AC+PE | X | X | X | |||||||||
| Spheroidized + cold drawn | +AC+C | — | X | X | |||||||||
| Spheroidized+ cold drawn +spheroidized | +AC+C+ AC | X | X | ||||||||||
| Spheroidized + cold drawn +sphe- roidized +skin passed | +AC+C+ AC+LC | X | X | ||||||||||
| Others | Other delivery conditions may be agreed at the time of ordering | ||||||||||||
| a X=applicable,—=not applicable b If agreed at the time of the enquiry and order. | |||||||||||||
| Steel name b | % mass fraction | ||||||||||||
| C | Si c | Mn | P | S | Cr d | Mo | B | Cu | |||||
| 17B2 | 0,15 to 0,20 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,30 | 0,0008 to 0,005 | 0,25 | |||||
| 23B2 | 0,20 to 0,25 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,30 | 0,0008 to 0,005 | 0,25 | |||||
| 28B2 | 0,25 to 0,30 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,30 | —— | 0,0008 to 0,005 | 0,25 | ||||
| 33B2 | 0,30 to 0,35 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 38B2 | 0,35 to 0,40 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 23MnB3 | 0,21 to 0,25 | 0,15 | 0,80 to 1,00 | 0,015 | 0,015 | 0,25 to 0,35 | — | 0,0008 to 0,005 | 0,25 | ||||
| 17MnB4 | 0,15 to 0,20 | 0,30 | 0,90 to 1,20 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 20MnB4 | 0,18 to 0,23 | 0,30 | 0,90 to 1,20 | 0,025 | 0,025 | 0,30 | 0,0008 to 0,005 | 0,25 | |||||
| 23MnB4 | 0,20 to 0,25 | 0,30 | 0,90 to 1,20 | 0.025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 27MnB4 | 0,25 to 0,30 | 0,30 | 0,90 to 1,20 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 30MnB4 | 0,27 to 0,32 | 0,30 | 0,80 to 1,10 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 36MnB4 | 0,33 to 0,38 | 0,30 | 0,80 to 1,10 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 20MnB5 | 0,17 to 0,23 | 0,30 | 1,10 to 1,40 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 23MnB5 | 0,20 to 0,26 | 0,30 | 1,10 to 1,40 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 26MnB5 | 0,23 to 0,29 | 0,30 | 1,20 to 1,50 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 34MnB5 | 0,31 to 0,37 | 0,30 | 1,20 to 1,50 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 37MnB5 | 0,35 to 0,40 | 0,30 | 1,15 to 1,45 | 0,025 | 0,025 | 0,30 | — | 0,0008 to 0,005 | 0,25 | ||||
| 30MoB1 | 0,28 to 0,32 | 0,30 | 0,80 to 1,00 | 0,025 | 0,025 | 0,30e | 0,08 to 0,12 | 0,0008 to 0,005 | 0,25 | ||||
| |||||||||||||
| Steel name b | % mass fraction a | ||||||||
| C | SI c | Mn | P | S | Cr d | Mo | B | Cu | |
| 32CrB4 | 0,30 to 0,34 | 0,30 | 0,60 to 0,90 | 0,025 | 0,025 | 0,90 to 1,20 | — | 0,0008 to 0,005 | 0,25 |
| 36CrB4 | 0,34 to 0,38 | 0,30 | 0,70 to 1,00 | 0,025 | 0.025 | 0,90 to 1,20 | 0,0008 to 0,005 | 0,25 | |
| 31CrMoB2-1 | 0,28 to 0,33 | 0,30 | 0,90 to 1,20 | 0,025 | 0,025 | 0,40 to 0,55 | 0,10 to 0,15 | 0,0008 to 0,005 | 0,25 |
| Elements not quoted in this table should not be intentionally added to the steel without the agreement of the purchaser,except those intended for finishing the heat.All reasonable precautions shall be taken in order to prevent the addition of such elements from scrap or other materials used in the production process,which can affect the hardenability, mechanical properties and applicability To improve the performance of cold heading,it is possible to add Al:0,020 %to 0,050% a Maximum values unless otherwise indicated b In the case of steels with hardenability requirements (see Table C.8),minor deviations from the specified limits are permitted (with the exception of sulfur and phosphorus) provided that they do not exceed 0,01 %for carbon and the values indicated in Table2 for the other elements. c Lower silicon contents may be agreed at the time of ordering,in which case due consideration should be given to the effects that could result for what concerns the specified properties such as,for example,hardenability. d Where a maximum chromium content of 0,30 %is specified,a minimum level may also be agreed at the time of enquiry and order e In order to obtain a core hardening for the steel grade 30MoB1,the lower limit of Cr shall be 0,15 %and may be agreed at the time of enquiry and order.For certain applications the higher limit for Cr may also be lowered by agreement at time of enquiry and order | |||||||||
| Steel name | Diameter | Delivery condition | ||||||||
| +AC or +AC+PE | +AR+C+AC | +AR+C+AC+LC | +AC+C | |||||||
| above mm | up to mm | Rm max. MPa | Z min. % | Rm max. MPa | Z min. % | Rm max. MPa | Z min. % | Rm max. MPa | Z min. % | |
| C30EC C30RC | 2 | 5 | — | — | — | — | 620 | 55 | — | — |
| 5 | 10 | — | — | — | 620 | 55 | 620 | 55 | ||
| 10 | 40 | 590 | 620 | 55 | 620 | 55 | ||||
| C35EC C35RC | 2 | 5 | 550 | 62 | 590 | 60 | — | |||
| 5 | 10 | 560 | 60 | 540 | 62 | 580 | 60 | 670 | ||
| 10 | 40 | 560 | 60 | 540 | 62 | 580 | 60 | 660 | — | |
| C45EC C45RC | 2 | 5 | — | 590 | 62 | 630 | 60 | — | — | |
| 5 | 10 | 600 | 60 | 580 | 62 | 620 | 60 | 720 | — | |
| 10 | 40 | 600 | 60 | 580 | 62 | 620 | 60 | 710 | — | |
