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John King Chains has a long tradition in the production and supply of ferrous iron and steel castings. Formally focusing on cast links for conveyor chains in wear resistant materials this has allowed the business to develop expertise in special iron and steel castings. This includes heat resistant materials used in grate bars for BIOMASS INCINERATION and WASTE INCINERATION.
Heat Resistant Cast Steel – JK Standards |
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JOHN KING Designation |
British Standard Material Designation |
American Material Designation |
CHEMICAL COMPOSITION (figs are % maxima except where noted or where range is shown) |
Tensile Strength |
Proof Stress |
CHARPY * |
Brinell Hardness |
Elongation |
Maximum Operating Temperature |
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C |
Si |
Mn |
S |
P |
Ni |
Cr |
Mo |
Cu |
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% |
N/mm2 (T/in2) |
Joules |
% |
°C |
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13% chromuim |
JK/HA1 |
410C21 |
A743:CA-15 |
0.15 |
1.00 |
1.00 |
0.04 |
0.04 |
1.00 |
11.5-13.5 |
– |
– |
540 (35) |
370 (24) |
– |
152-207 |
15 |
750 |
JK/HA2 |
420C29 |
A743:CA-15 |
0.20 |
1.00 |
1.00 |
0.04 |
0.04 |
1.00 |
11.5-13.5 |
– |
– |
690 (45) |
465 (30) |
– |
201-255 |
11 |
750 |
|
13% chromium 4% nickel steel |
JK/HA3 |
425C11 |
A743:CA-6NM |
0.10 |
1.00 |
1.00 |
0.04 |
0.04 |
3.4-4.2 |
11.5-13.5 |
0.60 |
– |
770 (50) |
620 (40) |
30 |
235-321 |
12 |
800 |
Chromuim steel for high temps |
JK/HC1 |
452C11 |
A297:HC |
1.00 |
2.00 |
1.00 |
0.06 |
0.06 |
4.00 |
25.0-30.0 |
1.50 |
– |
– |
– |
– |
– |
– |
1000 |
Chromuim steel for high temps |
JK/HC2 |
452C12 |
– |
1.00-2.00 |
2.00 |
1.00 |
0.06 |
0.06 |
4.00 |
25.0-30.0 |
1.50 |
– |
– |
– |
– |
– |
– |
1000 |
Chromuim steel for high temps |
JK/HC3 |
420C24 |
– |
0.25 |
2.00 |
1.00 |
0.06 |
0.06 |
– |
12.0-16.0 |
– |
– |
– |
– |
– |
– |
– |
750 |
Alloy steel for high temperatures |
JK/HH |
309C35 |
A297:HH |
0.20-0.50 |
1.50 |
2.00 |
0.04 |
0.04 |
11.0-14.0 |
24.0-28.0 |
1.50 |
– |
510 (33) |
– |
– |
– |
– |
1000 |
JK/HK |
310C40 |
A351:HK40 |
0.30-0.50 |
1.50 |
2.00 |
0.04 |
0.04 |
19.0-22.0 |
24.0-27.0 |
1.50 |
– |
450 (29) |
– |
– |
– |
– |
1150 |
|
Heat Resistant Cast Irons – JK Standards |
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2% Chromium Cast iron |
JK/CI/CR2 |
EN1561 |
– |
3.0-3.8 |
2.0-3.0 |
1.0 |
0.08 |
0.10 |
– |
1.0-2.0 |
– |
– |
150 (9.7) |
– |
– |
207-288 |
– |
550 |
16% Chromium Cast iron |
JK/CI/CR16 |
EN1561 |
– |
1.6-2.4 |
1.5-2.2 |
1.0. |
0.05 |
0.10 |
– |
15-18 |
– |
– |
340 (22) |
– |
– |
400-405 |
– |
600 |
Ni resist Cast Iron |
JK/CI/F1 |
BS3468 F1 |
ASTMA436/84 TYPE 1 |
3.0 Max |
1.5-2.8 |
0.5-1.5 |
– |
0.2 |
13.5-17.5 |
1.0-2.5 |
– |
Cu 5.5-7.5 |
170 (11) |
– |
– |
140-220 |
1-2 |
750 |
Ni resist Cast Iron |
JK/CI/F3 |
BS3468 F3 |
ASTMA436/84 TYPE 3 |
2.5 Max |
1.5-2.8 |
0.5-1.5 |
– |
– |
28.0-32.0 |
2.5-3.5 |
– |
Cu 0.5 Max |
170 (11) |
– |
– |
120-215 |
1-3 |
800 |
High silicon molybdenum SG Iron |
JK/DI/SiMo |
EN GJS SiMo |
– |
2.7-3.5 |
3.5-4.5 |
0.5. |
0.015 |
0.07 |
– |
– |
0.5.0.9. |
– |
540 (35) |
– |
– |
197-280 |
– |
750 |
High silicon alluminium addition SG Iron |
JK/DI/ALSI |
EN GJSAlSi |
– |
2.3-2.8 |
4.5-5.2 |
0.5 |
0.015 |
0.07 |
– |
– |
– |
Al 5.0-5.8. |
200 (13) |
– |
– |
302-363 |
– |
900 |
Ni Resist SG Iron |
JK/DI/S2 |
BS3468 S2 |
ASTMA436/84 TYPED2 |
3.0 Max |
1.5-2.8 |
0.5-1.5 |
– |
0.08 |
18.0-22.0 |
1.5-2.5 |
– |
Cu 0.5 Max |
370 (24) |
210 (14) |
– |
140-230 |
7-20 |
750 |
Ni Resist SG Iron |
JK/DI/S3 |
BS3468 S3 |
ASTMA436/84TYPE D3 |
2.5 Max |
1.5-2.8 |
0.5-1.5 |
– |
0.08 |
28.0-32.0 |
2.5-3.5 |
– |
Cu 0.5 Max |
370 (24) |
210 (14) |
– |
130-200 |
7.20 |
800 |
Ni Resist SG Iron |
JK/DI/S5S |
BS3468 S5S |
ASTMA436/84 |
2.2 Max |
4.8-5.4 |
1.0 Max |
– |
0.08 |
34.0-36.0 |
1.5-2.5 |
– |
Cu 0.5 Max |
370 (24) |
210 (14) |
– |
130-180 |
– |
850 |
WEAR RESISTANT STEELS |
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11-14% austenitic manganese steel |
JK/MN |
BW10 |
A128:GrA |
1.00-1.25 |
1,00 |
11.00 min |
0,06 |
0,07 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
1000 |