# Metal Density Reference Table (g/cm3, kg/m3, lb/in3)

> Source: https://netray.co/tools/metal-density-reference-table-steel-aluminum-copper-titanium
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: Free Tools

## Short answer

Searchable table of nominal densities for common engineering metals in three units, with typical use notes.

## Category

engineering-plm

## Audience

- Design engineer
- Buyer
- Estimator
- Item master owner

## Tool

**Kind:** worksheet

**Mode:** reference

**Columns:**

#### Material

**Key:** material

**Type:** text

#### Family

**Key:** family

**Type:** text

#### Density g/cm3

**Key:** g_cm3

**Type:** text

#### Density kg/m3

**Key:** kg_m3

**Type:** text

#### Density lb/in3

**Key:** lb_in3

**Type:** text

#### Note

**Key:** note

**Type:** text

**Rows:**

**Material:** Carbon steel (general)

**Family:** Steel

**G cm3:** 7.85

**Kg m3:** 7850

**Lb in3:** 0.284

**Note:** Default for plate, bar, tube

**Material:** Alloy steel 4140 / 4340

**Family:** Steel

**G cm3:** 7.85

**Kg m3:** 7850

**Lb in3:** 0.284

**Note:** Same as carbon steel for weight work

**Material:** Tool steel D2

**Family:** Steel

**G cm3:** 7.70

**Kg m3:** 7700

**Lb in3:** 0.278

**Note:** High chromium raises alloy content, lowers density

**Material:** Tool steel H13

**Family:** Steel

**G cm3:** 7.80

**Kg m3:** 7800

**Lb in3:** 0.282

**Note:** Hot work die steel

**Material:** Stainless 304 / 304L

**Family:** Stainless

**G cm3:** 7.93

**Kg m3:** 7930

**Lb in3:** 0.286

**Note:** Austenitic

**Material:** Stainless 316 / 316L

**Family:** Stainless

**G cm3:** 8.00

**Kg m3:** 8000

**Lb in3:** 0.289

**Note:** Austenitic, molybdenum bearing

**Material:** Stainless 430

**Family:** Stainless

**G cm3:** 7.70

**Kg m3:** 7700

**Lb in3:** 0.278

**Note:** Ferritic

**Material:** Stainless 410

**Family:** Stainless

**G cm3:** 7.74

**Kg m3:** 7740

**Lb in3:** 0.280

**Note:** Martensitic

**Material:** Stainless 17-4 PH

**Family:** Stainless

**G cm3:** 7.78

**Kg m3:** 7780

**Lb in3:** 0.281

**Note:** Precipitation hardening

**Material:** Duplex 2205

**Family:** Stainless

**G cm3:** 7.80

**Kg m3:** 7800

**Lb in3:** 0.282

**Note:** Ferritic-austenitic

**Material:** Grey cast iron

**Family:** Cast iron

**G cm3:** 7.20

**Kg m3:** 7200

**Lb in3:** 0.260

**Note:** Range roughly 6.9 to 7.3

**Material:** Ductile iron

**Family:** Cast iron

**G cm3:** 7.10

**Kg m3:** 7100

**Lb in3:** 0.256

**Note:** Range roughly 7.0 to 7.2

**Material:** Aluminum 1100

**Family:** Aluminum

**G cm3:** 2.71

**Kg m3:** 2710

**Lb in3:** 0.098

**Note:** Commercially pure

**Material:** Aluminum 5052

**Family:** Aluminum

**G cm3:** 2.68

**Kg m3:** 2680

**Lb in3:** 0.097

**Note:** Sheet, marine

**Material:** Aluminum 6061

**Family:** Aluminum

**G cm3:** 2.70

**Kg m3:** 2700

**Lb in3:** 0.098

**Note:** General structural

**Material:** Aluminum 7075

**Family:** Aluminum

**G cm3:** 2.81

**Kg m3:** 2810

**Lb in3:** 0.102

**Note:** High strength aerospace

**Material:** Copper (C11000)

**Family:** Copper alloy

**G cm3:** 8.96

**Kg m3:** 8960

**Lb in3:** 0.324

**Note:** Electrical tough pitch

**Material:** Brass (C36000 free-cutting)

**Family:** Copper alloy

**G cm3:** 8.50

**Kg m3:** 8500

**Lb in3:** 0.307

**Note:** Screw machine stock

**Material:** Bronze (C93200 bearing)

**Family:** Copper alloy

**G cm3:** 7.60

**Kg m3:** 7600

**Lb in3:** 0.275

**Note:** Leaded tin bronze

**Material:** Titanium Grade 2

**Family:** Titanium

**G cm3:** 4.51

**Kg m3:** 4510

**Lb in3:** 0.163

**Note:** Commercially pure

**Material:** Titanium Grade 5 (Ti-6Al-4V)

**Family:** Titanium

**G cm3:** 4.43

**Kg m3:** 4430

**Lb in3:** 0.160

**Note:** Aerospace workhorse

**Material:** Inconel 718

**Family:** Nickel alloy

**G cm3:** 8.19

**Kg m3:** 8190

**Lb in3:** 0.296

**Note:** Superalloy

**Material:** Inconel 625

**Family:** Nickel alloy

**G cm3:** 8.44

**Kg m3:** 8440

**Lb in3:** 0.305

**Note:** Corrosion resistant superalloy

**Material:** Monel 400

**Family:** Nickel alloy

**G cm3:** 8.80

**Kg m3:** 8800

**Lb in3:** 0.318

**Note:** Nickel copper

**Material:** Magnesium AZ31B

**Family:** Magnesium

**G cm3:** 1.77

**Kg m3:** 1770

**Lb in3:** 0.064

**Note:** Lightest structural metal here

**Material:** Zinc (die cast ZAMAK 3)

**Family:** Zinc

**G cm3:** 6.60

**Kg m3:** 6600

**Lb in3:** 0.238

**Note:** Die casting

**Material:** Lead

**Family:** Lead

**G cm3:** 11.34

**Kg m3:** 11340

**Lb in3:** 0.410

**Note:** Shielding, ballast

**Material:** Tungsten

**Family:** Refractory

**G cm3:** 19.25

**Kg m3:** 19250

**Lb in3:** 0.695

**Note:** Counterweights, tooling

**Notes:** Values are nominal handbook figures rounded for weight estimating. Casting, porosity, temper and exact chemistry shift real density by a small amount. Use the certificate value when mass matters.

## Content

**Intro:** Density is the first number you need for any weight, freight or material cost estimate. This table lists nominal densities for the steels, stainless grades, aluminum alloys, copper alloys, titanium and nickel alloys that machine shops and buyers handle most.

**Sections:**

#### How to use the table

**Body:** Type a material or family into the search box, for example 316, aluminum or titanium. Read the density in the unit your calculation needs: g/cm3 for dimension-in-mm formulas, kg/m3 for SI work, or lb/in3 for US customary drawings. Export the filtered table to Excel or CSV if you want to paste densities into an item master, costing sheet or estimating workbook.

**Bullets:**

- g/cm3 times 1000 gives kg/m3
- g/cm3 times 0.036127 gives lb/in3
- lb/in3 times 27.68 gives g/cm3
- Search by family to compare alternatives

#### Where the numbers come from

**Body:** Figures are standard handbook values, the same ones you see in producer datasheets and engineering references. Carbon and alloy steels cluster around 7.85 g/cm3. Austenitic stainless is slightly heavier because of nickel and molybdenum, while ferritic grades are lighter. Aluminum alloys range from about 2.66 to 2.84 g/cm3 depending on copper and zinc content. Densities are given at room temperature.

#### Reading the result in practice

**Body:** A 1 m long 50 mm round bar weighs about 15.4 kg in carbon steel, 15.6 kg in 304 and 5.3 kg in 6061 aluminum. The spread between steel and stainless is only about 1 percent, so many shops use one steel density for both when estimating, but the difference matters when you invoice by weight or ship near a truck limit. For titanium and aluminum, always use the specific alloy value.

#### Common mistakes

**Body:** People often pick the density of pure metal for an alloy, confuse lb/in3 with lb/ft3, or use a casting density for wrought stock. Another frequent mistake is storing weight in an ERP without recording the unit of measure and density basis, so later users cannot tell whether the figure is theoretical or weighed.

**Bullets:**

- Pure copper is heavier than most brasses and bronzes
- Cast iron varies more than wrought steel
- Hot-rolled and cold-drawn bar have the same density
- Record the source of weights in your item master notes

**Cta:** If you maintain material weights across thousands of ERP items, Netray can help automate a read-only check against these densities. Ask for a scoping call.

**Faq:**

#### What is the density of steel in kg/m3?

**Answer:** Carbon and low alloy steel are taken as 7850 kg/m3, which is 7.85 g/cm3 or 0.284 lb/in3. Stainless steels run from about 7700 to 8000 kg/m3 depending on the grade.

#### How much lighter is aluminum than steel?

**Answer:** Aluminum alloys at about 2.7 g/cm3 are roughly one third the density of steel at 7.85 g/cm3. For the same volume, aluminum weighs about 34 percent of steel, though strength differences usually change the design volume.

#### Does density change with heat treatment?

**Answer:** Only very slightly. Heat treatment changes microstructure and can alter density by a fraction of a percent, which is below the tolerance of normal weight estimating. Chemistry and porosity matter far more.

#### Which unit should I store in my ERP?

**Answer:** Store the unit your ERP base unit of measure needs, typically kg or lb per piece, and keep density only in a costing sheet. Weight per unit drives freight and costing, while density is a calculation input.

## Search terms

metal density chart, density of steel kg/m3, density of aluminum g/cm3, stainless steel density, titanium density lb/in3, brass density, density of copper, material density table

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