100-70-03 Ductile Cast Iron Casting Material

Ductile Cast Iron

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Introduction

100-70-03 is a ductile cast iron grade covered by ASTM A536. Typical applications include pump and compressor housings, automotive gears and crankshafts, and industrial machinery castings.

FieldValue
Designation100-70-03
Material TypeCast Iron
Sub TypeDuctile Cast Iron
Product Formcasting

Manufacturing Process

Sand Casting
Shell Molding Casting
Lost Foam Casting

Equivalent Materials

StandardMaterial Grade
EN 1563EN-GJS-700-2
ISO 1083ISO 1083/JS/700-2/S
AS 1831700-2
NS11 301SJK-700
UNFFGE70-2
JIS G5502FCD700
UNI 4544GS700-2
SS 14 070737-01
SAE J434D700
NF A32-201FGS700-2
BS 2789700/2
GB 1348QT700-2
NBN 830-02FNG70-2
IS 1865SG700/2
DIN 1693-1
DIN 1693-2
GGG-70
GB/T 1348QT700-2

Similar Materials

N/A

Reference Standards

StandardStandard TitleEditionSpecificationIdentifier
ASTM A536Standard Specification for Ductile Iron Castings84(1999)e1100-70-03—

Physical Properties

N/A

Chemical Composition

No specified chemical composition limits in ASTM A536

Heat Treatment

ASTM A536–84(1999)e1

The guidance identifies quenching and tempering, normalizing and tempering, or isothermal heat treatment as alternative routes, without prescribing temperatures, holding times or cooling parameters. Quenching to martensite and tempering may substantially reduce fatigue strength compared with as-cast material of the same hardness.

Mechanical Properties

Core Mechanical Properties

ASTM A536 — 84(1999)e1 · Table 1 — Normative

PropertyValue
Tensile Strength≥ 100000 psi[1]
Yield Strength≥ 70000 psi[2]
Elongation≥ 3.0 %[3]
Notes
  • Standard round tensile specimen, 2 in. or 50 mm gauge length; small-size alternatives for 1/2-in. Y-block per Clause 11.1; General-use ductile iron castings; Test coupons represent the same ladle or heat and receive the same thermal treatment as the castings. Coupon size is selected by the purchaser, or by the manufacturer if not specified. No quantitative coupon-to-casting property relationship is prescribed.

ASTM A536 — 84(1999)e1 · Table 1 — Informative

PropertyValue
Tensile Strength≥ 689 MPa[4]
Yield Strength≥ 483 MPa[5]
Notes
  • Standard round tensile specimen, 2 in. or 50 mm gauge length; small-size alternatives for 1/2-in. Y-block per Clause 11.1; General-use ductile iron castings; Test coupons represent the same ladle or heat and receive the same thermal treatment as the castings. Coupon size is selected by the purchaser, or by the manufacturer if not specified. No quantitative coupon-to-casting property relationship is prescribed.

Notes

ASTM A536 · Edition 84(1999)e1

[1] Tensile Strength: Chemical requirements may be agreed between manufacturer and purchaser. Hardness requirements apply only when specified in the contract or purchase order; no numerical hardness limit is prescribed. Special microstructure, pressure-tightness, radiographic, magnetic-particle, dimensional and surface-finish requirements apply only when specified in the contract or purchase order.

[2] Yield Strength: Yield strength is determined at 0.2% offset; another method requires mutual agreement.

[3] Elongation: Elongation gauge length: 2 in. or 50 mm. For a 1/2-in. Y-block use a permitted small-size specimen.

[4] Tensile Strength: The inch-pound values govern. SI values reproduce the printed and are not independent requirements.; Informative reference value; not an acceptance requirement

[5] Yield Strength: Yield strength is determined at 0.2% offset; another method requires mutual agreement.; The inch-pound values govern. SI values reproduce the printed and are not independent requirements.; Informative reference value; not an acceptance requirement

Welding Conditions

N/A

Applications

Ductile cast iron ASTM A536 Grade 100-70-03 is used for pump and compressor housings, automotive gears and crankshafts, and industrial machinery castings. Other cast components used in this material family include gear and transmission components, hubs, brackets, machine housings and pump-related castings. Applications include agricultural, construction and general industrial machinery.

Lifting, low-temperature and pressure-retaining duties require the relevant component-specific requirements; ordinary family uses do not establish those capabilities.

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Last Updated: November 6, 2026

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