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Materials & standards

Materials and grades we produce.

Grades cross-referenced to international standards, with chemistry and mechanical properties. Need a special grade or your own specification? Ask our engineers.

Microstructure of ductile iron and gray cast iron

01

Gray Cast Iron

Easy to machine with excellent vibration damping and resistance to sliding wear. Suited to general engineering through to heavy parts.

Typical uses: Machine beds and bases, flywheels, diesel engine parts, hydraulic housings, valve bodies.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
FC150185 / 150G 5501 FC150A48 201691 GG101830 T-1503.50–3.802.30–2.800.50–0.80≤ 0.25≤ 0.10––––150 min–––
FC200185 / 200G 5501 FC200A48 301691 GG151830 T-2203.30–3.601.80–2.300.60–0.90≤ 0.20≤ 0.10––––200 min–––
FC250185 / 250G 5501 FC250A48 351691 GG201830 T-2603.20–3.501.70–2.200.60–0.90≤ 0.15≤ 0.10––––250 min–––
FC300185 / 300G 5501 FC300A48 451691 GG251830 T-3003.10–3.301.60–2.100.60–0.90≤ 0.12≤ 0.10––––300 min–––

02

Ductile Cast Iron

Spheroidal graphite gives strength, toughness and high impact resistance. Replaces cast steel in many applications.

Typical uses: Compressor, pump and valve parts, crankshafts, differential housings, marine components.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
FCD4001083 400-15/18G 5502 FCD400A536 60-40-181693 GGG-401831 400-123.50–4.002.00–2.70≤ 0.30≤ 0.05≤ 0.02––––400 min250 min12 min≤ 201
FCD4501083 450-10G 5502 FCD450A536 60-42-10––3.50–4.002.00–2.70≤ 0.30≤ 0.08≤ 0.02––––450 min280 min10 min143–217
FCD5001083 500-7G 5502 FCD500A536 80-55-061693 GGG-501831 500-73.50–4.002.00–2.500.40–0.50≤ 0.08≤ 0.02––––500 min320 min7 min170–241
FCD6001083 600-3G 5502 FCD600A536 80-60-031693 GGG-601831 600-33.50–4.002.00–2.500.50–0.80≤ 0.08≤ 0.02––––600 min370 min3 min192–269
FCD7001083 700-2G 5502 FCD700A536 100-70-031693 GGG-701831 700-23.50–4.002.00–2.500.50–0.90≤ 0.08≤ 0.02––––700 min420 min2 min229–302

03

Alloy Cast Iron (High-Cr / Ni-Hard)

White cast iron alloyed with chromium, nickel and molybdenum. Very hard, resisting both wet and dry abrasion.

Typical uses: Mill liners, mixer blades, slurry pumps; cement, quarry, sand and power plant applications.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
A532 3A––A532 3A1695 G-X260Cr27–2.30–3.00≤ 1.000.50–1.50≤ 0.10≤ 0.06≤ 1.5023.00–28.00≤ 1.50––––400–600
A532 2C––A532 2C1695 G-X300CrMo153–2.80–3.60≤ 1.000.50–1.50≤ 0.10≤ 0.06≤ 0.5014.00–18.002.30–3.50––––400–600

04

Carbon Steel Castings

Easy to machine and weld. Suited to structural work and machine parts that need toughness.

Typical uses: Dies, gears, machine parts, structural components.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
SC4503755 230-450WG 5101 SC450A27 65-351681 GS-452074 C4-1≤ 0.35––≤ 0.04≤ 0.04––––450 min225 min19 min–
SC4803755 270-480WG 5101 SC480A27 70-361681 GS-522074 C7A-2≤ 0.40––≤ 0.04≤ 0.04––––480 min245 min17 min–
SCW480–G 5102 SCW480A216 WCA1681 GS-20Mn52074 C3≤ 0.22≤ 0.80≤ 1.50≤ 0.04≤ 0.04≤ 0.50≤ 0.50–CE ≤ 0.45480 min275 min20 min–

05

Low Alloy Steel Castings

Cr-Mo-Mn alloyed for high strength, fatigue and torque resistance. Can be hardened.

Typical uses: Power transmission gears, shafts, highly loaded structural parts.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
SCMn3–G 5111 SCMn3A148 90-60–2074 C0.30–0.400.30–0.601.00–1.60≤ 0.04≤ 0.04––––640 min370 min13 min170
SCMn5–G 5111 SCMn5A487 DnGS-46Mn42074 C60.40–0.500.30–0.601.00–1.60≤ 0.04≤ 0.04––––690 min390 min9 min183
SCCrM3–G 5111 SCCrM3A148 105-85–2074 L2A0.30–0.400.30–0.600.50–0.80≤ 0.04≤ 0.04–0.80–1.200.15–0.35–690 min440 min9 min201
SCMnCrM3–G 5111 SCMnCrM3A148 105-95––0.30–0.400.30–0.601.20–1.60≤ 0.04≤ 0.04–0.30–0.700.15–0.35–740 min540 min9 min212
SCNCrM2–G 5111 SCNCrM2A148 135-125––0.25–0.350.30–0.600.90–1.50≤ 0.04≤ 0.041.60–2.000.30–0.900.15–0.35–780 min590 min9 min223

06

High Alloy Steel Castings

Cast stainless, heat-resistant and high-manganese steels for corrosion, high temperature and impact.

Typical uses: Furnace parts, chemical equipment, bucket teeth, crusher parts.

GradeEquivalent standardsChemical composition (%)Mechanical properties
ISOJISASTMDINASCSiMnPSNiCrMoOtherTensile
N/mm²
Proof
N/mm²
Elong.
%
Hardness
HB
SCS12–G 5121 SCS12A743 CF2017445 G-X10CrNi188–≤ 0.20≤ 2.00≤ 2.00≤ 0.04≤ 0.048.00–11.0018.00–21.00––480 min205 min28 min183
SCS14–G 5121 SCS14A743 CF8M17445 G-X6CrNiMo18102074 H6C≤ 0.08≤ 2.00≤ 2.00≤ 0.04≤ 0.0410.00–14.0017.00–20.002.00–3.00–440 min185 min28 min183
SCH13–G 5122 SCH13A297 HH17465 G-X40CrNiSi25122074 H8B0.20–0.50≤ 2.00≤ 2.00≤ 0.04≤ 0.0411.00–14.0024.00–28.00––490 min235 min8 min–
SCH21CD 11973G 5122 SCH21A297 HK17465 G-X40CrNiSi2520–0.25–0.35≤ 1.75≤ 1.50≤ 0.04≤ 0.0419.00–22.0023.00–27.00––440 min235 min8 min–
SCMnH3–G 5131 SCMnH3A128 A17145 X110Mn142074 H1A0.90–1.200.30–0.8011.00–14.00≤ 0.05≤ 0.035––––740 min–35 min–
SCMnH11–G 5131 SCMnH11A128 C–2074 H1B0.90–1.30≤ 0.8011.00–14.00≤ 0.07≤ 0.04–1.50–2.50––740 min390 min20 min–

* Data carried over from the previous website and under review by our QC team. Actual values follow the purchase order specification.

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Pouring molten iron