---
title: "硼合金渗碳钢 — 1 个牌号及其成分"
description: "硼合金渗碳钢是经设计可在渗碳后形成硬化表面和较韧芯部的低碳合金钢。添加硼可提高淬透性，而其合金成分有利于制造耐久齿轮、轴及其他易磨…"
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![硼合金渗碳钢](/images/uploads/1c3c8837-cafa-4961-9c16-8cf3415aecfd/boron-alloyed-case-hardening-steels-category-forged-blanks-1920x1080.jpg)

类别 · 1 牌号

# 硼合金渗碳钢

硼合金渗碳钢是经设计可在渗碳后形成硬化表面和较韧芯部的低碳合金钢。添加硼可提高淬透性，而其合金成分有利于制造耐久齿轮、轴及其他易磨损零部件。

| 牌号 | 材料号 | B | C | Si | P | S | Cr |
|---|---|---|---|---|---|---|---|
| [18MnCrB5](/zh/材料/din-en/18mncrb5 "18MnCrB5") | [1.7168](/zh/材料/材料编号/1.7168 "1.7168") | 0,0008-0,0050 | 0,16-0,20 | 0,15-0,35 | 0,035 | 0,015-0,035 | 0,90-1,20 |

## 覆盖此类别的标准

1

- [**DIN / EN***1 牌号*](/zh/材料/din-en "DIN / EN — 此类别中1 牌号")

## 性能范围

1

| 性能 | 单位 | 下限 | 上限 | 牌号数 |
|---|---|---|---|---|
| rho | g/cm³ | 7.85 | 7.85 | 1 |

基于本类别中1 牌号的已记录数值得出。

## 成分范围

7

| 性能 | 单位 | 下限 | 上限 | 牌号数 |
|---|---|---|---|---|
| B | % | 0.0008 | 0.005 | 1 |
| C | % | 0.16 | 0.2 | 1 |
| Si | % | 0.15 | 0.35 | 1 |
| P | % | 0.035 | 0.035 | 1 |
| S | % | 0.015 | 0.035 | 1 |
| Cr | % | 0.9 | 1.2 | 1 |
| Mn | % | 1 | 1.3 | 1 |

基于本类别中1 牌号的已记录数值得出。