ASTM A536 Cast Iron

ASTM A536 Cast Iron

ASTM A536 Grade 65 45-12 Ductile Iron Castings High Quality Castings Product Description and Process ASTM A536 Grade 65 45-12 Ductile Iron Castings High Quality Castings Production process includes: green sand casting process pre-coated sand casting process resin sand casting process Weight...

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ASTM A536 Grade 65 45-12 Ductile Iron Castings High Quality Castings

Product Description and Process

ASTM A536 Grade 65 45-12 Ductile Iron Castings High Quality Castings


Production process includes:

green sand casting process

pre-coated sand casting process

resin sand casting process

Weight range: from 50 gram to 2,000 kilograms for ductile iron casting product


Machining process:

CNC machine, machining center, lathe, mill machine, drill machine, etc.


Surface treatment process:

paint coating, electrophoretic paint coating, electrogalvanizing coating, black oxide coating, phosphate treatment,  powder coating, etc.


Product  Material and Uses

Normally production with gray iron HT200, HT250, ductile iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, 100-70-03, etc.

The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, etc.


Ductile iron Chemical Composition

A typical chemical analysis of this material:

Carbon 3.2 to 3.60%

Silicon 2.2 to 2.8%

Manganese 0.1 to 0.2%

Magnesium 0.03 to 0.04%

Phosphorus 0.005 to 0.04%

Sulfur 0.005 to 0.02%

Copper <0.40%

Iron balance

Elements such as copper or tin may be added to increase tensile and yield strength while simultaneously reducing ductility. Improved corrosion resistance can be achieved by replacing 15% to 30% of the iron in the alloy with varying amounts of nickel, copper, or chromium.


Ductile Iron Grade Chart

ASTM A536 1993 (USA)

Grade

Tensile Strength

σ≥/Mpa

Yield Strength

σ≥/Mpa

Elongation

δ≥(%)

ANSI/ASTM

UNS

60-40-18

F32800

414

276

18

65-45-12

F33100

448

310

12

80-55-06

F33800

552

379

6.0

100-70-03

F34800

689

483

3.0

120-90-02

F36200

827

621

2.0

Special Purpose

///

60-42-10

/

415

290

10

70-50-05

/

485

345

5.0

80-60-03

/

555

415

3.0


GB/T 1348 1998 (China)

Grade

Tensile strength

σb≥/MPa

Yield strength

σ0.2≥/MPa

Elongation

δ5≥(%)

Hardness

HBS

QT400-18

QT400-18-LT*

400

250

18

130~180 

QT400-15

400

250

15

130~180 

QT450-10

450

310

10

160~210 

QT500-7

500

320

7

170~230 

QT600-3

600

370

3

190~270 

QT700-2

700

420

2

225~305 

QT800-2

800

480

2

245~335 

QT900-2

900

600

2

280~360

*Low temperature V notch impact tested (-20±2℃) 


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