Steels For Pressure And Boiler Purposes

NONALLOY AND ALLOY STEELS

GRADE	DIN NO	ERDEMIR NO	YIELD (Reh) min	TENSILE (Rm)	°C	IMPACT TEST VALUES ENERGY (J) k = 16mm
P265GH	1.0425	6341	265	410-530	0	27
P295GH	1.0481	6347	295	460-580	0	27
P355GH	1.0473	6352	355	510-650	0	27
16Mo3	1.5415	6345	275	440-590	20	27
13CrMo4-5	1.7335		300	450-600	20	27
10CrMo9-10	1.7380		300	480-630	20	27

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NORMALIZED, WELDABLE, FINE GRAIN STEELS

GRADE	DIN NO	YIELD (Reh) min	TENSILE (Rm)	°C	IMPACT TEST VALUES ENERGY (J) k = 16mm
P275NH	1.0487	275	390-510	-20	30
P275NL1	1.0488	275	390-510	-40	27
P275NL2	1.1104	275	390-510	-50	27
P355NH	1.0565	355	490-630	-20	30
P355NL1	1.0566	355	490-630	-40	27
P355NL2	1.1106	355	490-60	-50	27
P460NH	1.8935	460	570-720	-20	30
P460NL1	1.8915	460	570-720	-40	27
P460NL2	1.8918	460	570-720	-50	27

• GH grade plates are heat resistant up to 400°C whereas 16Mo3 and 13CrMo4-5 grades can resist up to 500°C heat.
• GH – suitable for use in high temperatures
• NH – suitable for use in medium to high temperatures; with impact test at -20°C or up
• NL1 – suitable for use in low temperatures; with impact test at -40°C or up
• NL2 – suitable for use in especially low temperatures; with impact test at -50°C or up
• These steels can be supplied with HIC testing especially if used in tank manufacturing for petroleum and gas industries.

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STEELS IN ASTM / ASME STANDARDS

GRADE	YIELD (Reh) min	TENSILE (Rm)
A / SA 516 Gr. 60	220	415-550
A / SA 516 Gr. 70	260	485-620
A / SA 387 Gr. 11 Cl. 2	310	515-690
A / SA 387 Gr. 12 Cl. 2	275	450-585
A / SA 387 Gr. 22 Cl. 2	310	515-690
A / SA 283 Gr. C	205	380-515
A / SA 285 Gr. C	205	380-515
A / SA 387 Gr. 5 Cl. 2	310	515-610
SA 537 CL1	345	485-620