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类别 · 156 牌号

# 冷挤压钢

冷挤压钢是用于通过冷成形和挤压加工制造零部件的工程材料。它兼具大塑性变形所需的延性，以及冷成形紧固件、汽车零部件和其他精密零件所需的强度和韧性。

| 牌号 | 材料号 | C | P | S | Mn | Si | Cr |
|---|---|---|---|---|---|---|---|
| [SNC815RCH](/zh/材料/jis/snc815rch "SNC815RCH") | — | 0.12 - 0.18 | max 0.03 | max 0.03 | 0.35 - 0.65 | 0.15 - 0.35 | 0.6 - 1 |
| [SMn438HRCH](/zh/材料/jis/smn438hrch "SMn438HRCH") | — | 0.34 - 0.41 | max 0.03 | max 0.03 | 1.3 - 1.7 | 0.15 - 0.35 | max 0.35 |
| [SWCH35K](/zh/材料/jis/swch35k "SWCH35K") | — | — | — | — | — | — | — |
| [SWRCH38K](/zh/材料/jis/swrch38k "SWRCH38K") | — | 0.35 - 0.41 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM240RCH](/zh/材料/jis/sncm240rch "SNCM240RCH") | — | 0.38 - 0.43 | max 0.03 | max 0.03 | 0.7 - 1 | 0.15 - 0.35 | 0.4 - 0.6 |
| [SMnC443RCH](/zh/材料/jis/smnc443rch "SMnC443RCH") | — | 0.4 - 0.46 | max 0.03 | max 0.03 | 1.35 - 1.65 | 0.15 - 0.35 | 0.35 - 0.7 |
| [SWCH43K](/zh/材料/jis/swch43k "SWCH43K") | — | — | — | — | — | — | — |
| [SWRCH45K](/zh/材料/jis/swrch45k "SWRCH45K") | — | 0.42 - 0.48 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM447RCH](/zh/材料/jis/sncm447rch "SNCM447RCH") | — | 0.44 - 0.5 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.6 - 1 |
| [SCr420HRCH](/zh/材料/jis/scr420hrch "SCr420HRCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SWRCHB237](/zh/材料/jis/swrchb237 "SWRCHB237") | — | 0.34 - 0.4 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.1 - 0.35 | — |
| [SWCH10R](/zh/材料/jis/swch10r "SWCH10R") | — | — | — | — | — | — | — |
| [SWRCHB331](/zh/材料/jis/swrchb331 "SWRCHB331") | — | 0.28 - 0.34 | max 0.03 | max 0.03 | 0.7 - 1 | 0.1 - 0.35 | — |
| [SWCH17R](/zh/材料/jis/swch17r "SWCH17R") | — | — | — | — | — | — | — |
| [SWRCH17R](/zh/材料/jis/swrch17r "SWRCH17R") | — | 0.15 - 0.2 | max 0.04 | max 0.04 | 0.3 - 0.6 | — | max 0.2 |
| [SCM415RCH](/zh/材料/jis/scm415rch "SCM415RCH") | — | 0.13 - 0.18 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWRCHB620](/zh/材料/jis/swrchb620 "SWRCHB620") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 1.1 - 1.4 | 0.1 - 0.35 | — |
| [SWCH12A](/zh/材料/jis/swch12a "SWCH12A") | — | — | — | — | — | — | — |
| [SWRCH12A](/zh/材料/jis/swrch12a "SWRCH12A") | — | 0.1 - 0.15 | max 0.03 | max 0.035 | 0.3 - 0.6 | max 0.1 | max 0.2 |
| [SCM420RCH](/zh/材料/jis/scm420rch "SCM420RCH") | — | 0.18 - 0.23 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCHB223](/zh/材料/jis/swchb223 "SWCHB223") | — | 0.2 - 0.26 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.1 - 0.35 | — |
| [SWCH19A](/zh/材料/jis/swch19a "SWCH19A") | — | — | — | — | — | — | — |
| [SWRCH20A](/zh/材料/jis/swrch20a "SWRCH20A") | — | 0.18 - 0.23 | max 0.03 | max 0.035 | 0.3 - 0.6 | max 0.1 | max 0.2 |
| [SCM430RCH](/zh/材料/jis/scm430rch "SCM430RCH") | — | 0.28 - 0.33 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCHB331](/zh/材料/jis/swchb331 "SWCHB331") | — | 0.28 - 0.34 | max 0.03 | max 0.03 | 0.7 - 1 | 0.1 - 0.35 | — |
| [SWCH10K](/zh/材料/jis/swch10k "SWCH10K") | — | — | — | — | — | — | — |
| [SWRCH12K](/zh/材料/jis/swrch12k "SWRCH12K") | — | 0.1 - 0.15 | max 0.03 | max 0.035 | 0.3 - 0.6 | 0.1 - 0.35 | max 0.2 |
| [SCM440HRCH](/zh/材料/jis/scm440hrch "SCM440HRCH") | — | 0.37 - 0.44 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SWCHB620](/zh/材料/jis/swchb620 "SWCHB620") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 1.1 - 1.4 | 0.1 - 0.35 | — |
| [SWCH17K](/zh/材料/jis/swch17k "SWCH17K") | — | — | — | — | — | — | — |
| [SWRCH18K](/zh/材料/jis/swrch18k "SWRCH18K") | — | 0.15 - 0.2 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SCM822HRCH](/zh/材料/jis/scm822hrch "SCM822HRCH") | — | 0.19 - 0.25 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SMn420RCH](/zh/材料/jis/smn420rch "SMn420RCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 1.2 - 1.5 | 0.15 - 0.35 | max 0.35 |
| [SWCH24K](/zh/材料/jis/swch24k "SWCH24K") | — | — | — | — | — | — | — |
| [SWRCH25K](/zh/材料/jis/swrch25k "SWRCH25K") | — | 0.22 - 0.28 | max 0.03 | max 0.035 | 0.3 - 0.6 | 0.1 - 0.35 | max 0.2 |
| [SNC631HRCH](/zh/材料/jis/snc631hrch "SNC631HRCH") | — | 0.26 - 0.35 | max 0.03 | max 0.03 | 0.3 - 0.7 | 0.15 - 0.35 | 0.55 - 1.05 |
| [SMn438RCH](/zh/材料/jis/smn438rch "SMn438RCH") | — | 0.35 - 0.41 | max 0.03 | max 0.03 | 1.35 - 1.65 | 0.15 - 0.35 | max 0.35 |
| [SWCH33K](/zh/材料/jis/swch33k "SWCH33K") | — | — | — | — | — | — | — |
| [SWRCH35K](/zh/材料/jis/swrch35k "SWRCH35K") | — | 0.32 - 0.38 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM220HRCH](/zh/材料/jis/sncm220hrch "SNCM220HRCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.6 - 0.95 | 0.15 - 0.35 | 0.35 - 0.65 |
| [SMnC420RCH](/zh/材料/jis/smnc420rch "SMnC420RCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 1.2 - 1.5 | 0.15 - 0.35 | 0.35 - 0.7 |
| [SWCH41K](/zh/材料/jis/swch41k "SWCH41K") | — | — | — | — | — | — | — |
| [SWRCH43K](/zh/材料/jis/swrch43k "SWRCH43K") | — | 0.4 - 0.46 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM439RCH](/zh/材料/jis/sncm439rch "SNCM439RCH") | — | 0.36 - 0.43 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.6 - 1 |
| [SCr420RCH](/zh/材料/jis/scr420rch "SCr420RCH") | — | 0.18 - 0.23 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCH50K](/zh/材料/jis/swch50k "SWCH50K") | — | — | — | — | — | — | — |
| [SWRCHB223](/zh/材料/jis/swrchb223 "SWRCHB223") | — | 0.2 - 0.26 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.1 - 0.35 | — |
| [SWCH8R](/zh/材料/jis/swch8r "SWCH8R") | — | — | — | — | — | — | — |
| [SWRCH8R](/zh/材料/jis/swrch8r "SWRCH8R") | — | max 0.1 | max 0.04 | max 0.04 | max 0.6 | — | max 0.2 |
| [SCr435RCH](/zh/材料/jis/scr435rch "SCr435RCH") | — | 0.33 - 0.38 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |

 [上一页](/zh/%E7%B1%BB%E5%88%AB/%E5%86%B7%E6%8C%A4%E5%8E%8B%E9%92%A2/页/2 "上一页")第 3 页，共 4 页[下一页](/zh/%E7%B1%BB%E5%88%AB/%E5%86%B7%E6%8C%A4%E5%8E%8B%E9%92%A2/页/4 "下一页")

## 覆盖此类别的标准

8

- [**JIS***152 牌号*](/zh/材料/jis "JIS — 此类别中152 牌号")
- [**KS***49 牌号*](/zh/材料/ks "KS — 此类别中49 牌号")
- [**DIN / EN***6 牌号*](/zh/材料/din-en "DIN / EN — 此类别中6 牌号")
- [**UNS***4 牌号*](/zh/材料/uns "UNS — 此类别中4 牌号")
- [**AISI / SAE***4 牌号*](/zh/材料/aisi-sae "AISI / SAE — 此类别中4 牌号")
- [**GOST***4 牌号*](/zh/材料/gost "GOST — 此类别中4 牌号")
- [**GB***3 牌号*](/zh/材料/gb "GB — 此类别中3 牌号")
- [**AS / NZS***1 牌号*](/zh/材料/as-nzs "AS / NZS — 此类别中1 牌号")

## 性能范围

18

| 性能 | 单位 | 下限 | 上限 | 牌号数 |
|---|---|---|---|---|
| Rm | N/mm² | 290 | 1076 | 48 |
| Re | N/mm² | 225 | 958 | 4 |
| A | % | 17 | 30 | 3 |
| A5 | % | 6 | 30 | 4 |
| Z | % | 30 | 55 | 48 |
| KCU | kJ/m² | 150 | 400 | 1 |
| HB | — | 121 | 255 | 3 |
| HRB | — | 80 | 97 | 37 |
| rho | g/cm³ | 7.549 | 7.9 | 6 |
| E | GPa | 152 | 217 | 4 |
| alpha | 10^-6/K | 11.9 | 15.3 | 3 |
| lambda | W/(m·K) | 26 | 56.1 | 4 |
| cp | J/(kg·K) | 465 | 720 | 3 |
| rho\_el | nΩ·m | 233 | 1156 | 2 |
| Ac1 | °C | 730 | 810 | 4 |
| Ac3 | °C | 755 | 950 | 4 |
| Ar3 | °C | 690 | 840 | 4 |
| Ar1 | °C | 680 | 780 | 4 |

基于本类别中48 牌号的已记录数值得出。

## 成分范围

11

| 性能 | 单位 | 下限 | 上限 | 牌号数 |
|---|---|---|---|---|
| B | % | 0.0008 | 0.0008 | 24 |
| C | % | 0.08 | 0.53 | 118 |
| Al | % | 0.02 | 0.02 | 10 |
| Si | % | 0.1 | 0.4 | 112 |
| P | % | 0.025 | 0.04 | 118 |
| S | % | 0.025 | 0.04 | 118 |
| Cr | % | 0.2 | 1.8 | 90 |
| Mn | % | 0.3 | 1.7 | 118 |
| Ni | % | 0.2 | 3.5 | 88 |
| Cu | % | 0.25 | 0.3 | 92 |
| Mo | % | 0.15 | 0.6 | 25 |

基于本类别中118 牌号的已记录数值得出。