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![Aços para extrusão a frio](/images/uploads/975d5481-ccda-41cd-ae59-c6ed6b908d03/cold-extrusion-steels-category-extruded-slugs-1920x1080.jpg)

Categoria · 156 qualidades

# Aços para extrusão a frio

Os aços para extrusão a frio são materiais de engenharia concebidos para serem transformados em componentes por conformação a frio e extrusão. Combinam a ductilidade necessária para uma deformação plástica substancial com a resistência e a tenacidade exigidas em elementos de fixação conformados a frio, peças automóveis e outros componentes de precisão.

| Qualidade | N.º de material | C | P | S | Mn | Si | Cr |
|---|---|---|---|---|---|---|---|
| [SWCHB420](/pt/materiais/jis/swchb420 "SWCHB420") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.8 - 1.1 | 0.1 - 0.35 | — |
| [SWCH15K](/pt/materiais/jis/swch15k "SWCH15K") | — | — | — | — | — | — | — |
| [SWRCH16K](/pt/materiais/jis/swrch16k "SWRCH16K") | — | 0.13 - 0.18 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SCM445HRCH](/pt/materiais/jis/scm445hrch "SCM445HRCH") | — | 0.42 - 0.49 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SWCHB726](/pt/materiais/jis/swchb726 "SWCHB726") | — | 0.23 - 0.29 | max 0.03 | max 0.03 | 1.2 - 1.5 | 0.1 - 0.35 | — |
| [SWCH20K](/pt/materiais/jis/swch20k "SWCH20K") | — | — | — | — | — | — | — |
| [SWRCH22K](/pt/materiais/jis/swrch22k "SWRCH22K") | — | 0.18 - 0.23 | max 0.03 | max 0.035 | 0.7 - 1 | 0.1 - 0.35 | max 0.2 |
| [SNC415HRCH](/pt/materiais/jis/snc415hrch "SNC415HRCH") | — | 0.11 - 0.18 | max 0.03 | max 0.03 | 0.3 - 0.7 | 0.15 - 0.35 | 0.2 - 0.55 |
| [SMn433RCH](/pt/materiais/jis/smn433rch "SMn433RCH") | — | 0.3 - 0.36 | max 0.03 | max 0.03 | 1.2 - 1.5 | 0.15 - 0.35 | max 0.35 |
| [SWCH27K](/pt/materiais/jis/swch27k "SWCH27K") | — | — | — | — | — | — | — |
| [SWRCH30K](/pt/materiais/jis/swrch30k "SWRCH30K") | — | 0.27 - 0.33 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNC815HRCH](/pt/materiais/jis/snc815hrch "SNC815HRCH") | — | 0.11 - 0.18 | max 0.03 | max 0.03 | 0.3 - 0.7 | 0.15 - 0.35 | 0.55 - 1.05 |
| [SMn443RCH](/pt/materiais/jis/smn443rch "SMn443RCH") | — | 0.4 - 0.46 | max 0.03 | max 0.03 | 1.35 - 1.65 | 0.15 - 0.35 | max 0.35 |
| [SWCH38K](/pt/materiais/jis/swch38k "SWCH38K") | — | — | — | — | — | — | — |
| [SWRCH40K](/pt/materiais/jis/swrch40k "SWRCH40K") | — | 0.37 - 0.43 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM420RCH](/pt/materiais/jis/sncm420rch "SNCM420RCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.4 - 0.7 | 0.15 - 0.35 | 0.4 - 0.6 |
| [SCr415RCH](/pt/materiais/jis/scr415rch "SCr415RCH") | — | 0.13 - 0.18 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCH45K](/pt/materiais/jis/swch45k "SWCH45K") | — | — | — | — | — | — | — |
| [SWRCH48K](/pt/materiais/jis/swrch48k "SWRCH48K") | — | 0.45 - 0.51 | max 0.03 | max 0.035 | 0.6 - 0.9 | 0.1 - 0.35 | max 0.2 |
| [SNCM616RCH](/pt/materiais/jis/sncm616rch "SNCM616RCH") | — | 0.13 - 0.2 | max 0.03 | max 0.03 | 0.8 - 1.2 | 0.15 - 0.35 | 1.4 - 1.8 |
| [SCr430RCH](/pt/materiais/jis/scr430rch "SCr430RCH") | — | 0.28 - 0.33 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWRCHB320](/pt/materiais/jis/swrchb320 "SWRCHB320") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.7 - 1 | 0.1 - 0.35 | — |
| [SWCH12R](/pt/materiais/jis/swch12r "SWCH12R") | — | — | — | — | — | — | — |
| [SWRCH12R](/pt/materiais/jis/swrch12r "SWRCH12R") | — | 0.1 - 0.15 | max 0.04 | max 0.04 | 0.3 - 0.6 | — | max 0.2 |
| [SCr440RCH](/pt/materiais/jis/scr440rch "SCr440RCH") | — | 0.38 - 0.43 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWRCHB334](/pt/materiais/jis/swrchb334 "SWRCHB334") | — | 0.31 - 0.37 | max 0.03 | max 0.03 | 0.7 - 1 | 0.1 - 0.35 | — |
| [SWCH6A](/pt/materiais/jis/swch6a "SWCH6A") | — | — | — | — | — | — | — |
| [SWRCH6A](/pt/materiais/jis/swrch6a "SWRCH6A") | — | max 0.08 | max 0.03 | max 0.035 | max 0.6 | max 0.1 | max 0.2 |
| [SCM415HRCH](/pt/materiais/jis/scm415hrch "SCM415HRCH") | — | 0.12 - 0.18 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SWRCHB623](/pt/materiais/jis/swrchb623 "SWRCHB623") | — | 0.2 - 0.26 | max 0.03 | max 0.03 | 1.1 - 1.4 | 0.1 - 0.35 | — |
| [SWCH15A](/pt/materiais/jis/swch15a "SWCH15A") | — | — | — | — | — | — | — |
| [SWRCH16A](/pt/materiais/jis/swrch16a "SWRCH16A") | — | 0.13 - 0.18 | max 0.03 | max 0.035 | 0.6 - 0.9 | max 0.1 | max 0.2 |
| [SCM420HRCH](/pt/materiais/jis/scm420hrch "SCM420HRCH") | — | 0.17 - 0.23 | max 0.03 | max 0.03 | 0.55 - 0.95 | 0.15 - 0.35 | 0.85 - 1.25 |
| [SWCHB237](/pt/materiais/jis/swchb237 "SWCHB237") | — | 0.34 - 0.4 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.1 - 0.35 | — |
| [SWCH20A](/pt/materiais/jis/swch20a "SWCH20A") | — | — | — | — | — | — | — |
| [SWRCH22A](/pt/materiais/jis/swrch22a "SWRCH22A") | — | 0.18 - 0.23 | max 0.03 | max 0.035 | 0.7 - 1 | max 0.1 | max 0.2 |
| [SCM435RCH](/pt/materiais/jis/scm435rch "SCM435RCH") | — | 0.33 - 0.38 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCHB334](/pt/materiais/jis/swchb334 "SWCHB334") | — | 0.31 - 0.37 | max 0.03 | max 0.03 | 0.7 - 1 | 0.1 - 0.35 | — |
| [SWCH12K](/pt/materiais/jis/swch12k "SWCH12K") | — | — | — | — | — | — | — |
| [SWRCH15K](/pt/materiais/jis/swrch15k "SWRCH15K") | — | 0.13 - 0.18 | max 0.03 | max 0.035 | 0.3 - 0.6 | 0.1 - 0.35 | max 0.2 |
| [SCM445RCH](/pt/materiais/jis/scm445rch "SCM445RCH") | — | 0.43 - 0.48 | max 0.03 | max 0.03 | 0.6 - 0.9 | 0.15 - 0.35 | 0.9 - 1.2 |
| [SWCHB623](/pt/materiais/jis/swchb623 "SWCHB623") | — | 0.2 - 0.26 | max 0.03 | max 0.03 | 1.1 - 1.4 | 0.1 - 0.35 | — |
| [SWCH18K](/pt/materiais/jis/swch18k "SWCH18K") | — | — | — | — | — | — | — |
| [SWRCH20K](/pt/materiais/jis/swrch20k "SWRCH20K") | — | 0.18 - 0.23 | max 0.03 | max 0.035 | 0.3 - 0.6 | 0.1 - 0.35 | max 0.2 |
| [SNC415RCH](/pt/materiais/jis/snc415rch "SNC415RCH") | — | 0.12 - 0.18 | max 0.03 | max 0.03 | 0.35 - 0.65 | 0.15 - 0.35 | 0.2 - 0.5 |
| [SMn420HRCH](/pt/materiais/jis/smn420hrch "SMn420HRCH") | — | 0.16 - 0.23 | max 0.03 | max 0.03 | 1.15 - 1.55 | 0.15 - 0.35 | max 0.35 |
| [SWCH25K](/pt/materiais/jis/swch25k "SWCH25K") | — | — | — | — | — | — | — |
| [SWRCH27K](/pt/materiais/jis/swrch27k "SWRCH27K") | — | 0.22 - 0.29 | max 0.03 | max 0.035 | 1.2 - 1.5 | 0.1 - 0.35 | max 0.2 |
| [SNC815RCH](/pt/materiais/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](/pt/materiais/jis/smn438hrch "SMn438HRCH") | — | 0.34 - 0.41 | max 0.03 | max 0.03 | 1.3 - 1.7 | 0.15 - 0.35 | max 0.35 |

 [Anterior](/pt/categorias/a%C3%A7os-para-extrus%C3%A3o-a-frio "Anterior") Página 2 de 4[Seguinte](/pt/categorias/a%C3%A7os-para-extrus%C3%A3o-a-frio/pagina/3 "Seguinte")

## Normas que abrangem esta categoria

 8

- [**JIS***152 qualidades*](/pt/materiais/jis "JIS — 152 qualidades nesta categoria")
- [**KS***49 qualidades*](/pt/materiais/ks "KS — 49 qualidades nesta categoria")
- [**DIN / EN***6 qualidades*](/pt/materiais/din-en "DIN / EN — 6 qualidades nesta categoria")
- [**UNS***4 qualidades*](/pt/materiais/uns "UNS — 4 qualidades nesta categoria")
- [**AISI / SAE***4 qualidades*](/pt/materiais/aisi-sae "AISI / SAE — 4 qualidades nesta categoria")
- [**GOST***4 qualidades*](/pt/materiais/gost "GOST — 4 qualidades nesta categoria")
- [**GB***3 qualidades*](/pt/materiais/gb "GB — 3 qualidades nesta categoria")
- [**AS / NZS***1 qualidade*](/pt/materiais/as-nzs "AS / NZS — 1 qualidade nesta categoria")

## Intervalos de propriedades

 18

| Propriedade | Unidade | Mín | Máx | Qualidades |
|---|---|---|---|---|
| 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 |

Calculado a partir de 48 qualidades desta categoria com um valor registado.

## Intervalo de composição

 11

| Propriedade | Unidade | Mín | Máx | Qualidades |
|---|---|---|---|---|
| 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 |

Calculado a partir de 118 qualidades desta categoria com um valor registado.