SABS / SANS 1431 STEEL MATERIAL SPECIFICATIONS

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SABS / SANS 1431 STEEL MATERIAL SPECIFICATIONS

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SABS / SANS 1431 steel material reference

TABLE 1 - Chemical composition % (ladle analysis) as specified in SABS 1431, 1987
Maximum chemical composition1)
Grade	C	Mn	Si	P	S	Nb	V	Nb + V	Al	Cu1)	Ni2)	Cr2)	Mo2)	Normal supply conditions
240WA	0.22	1.60	0.50	0.040	0.050	0.01	0.03	0.04	0.10	0.35	0.30	0.30	0.10	As rolled
240WC	0.22	1.60	0.50	0.040	0.050	0.01	0.03	0.04	0.10	0.35	0.30	0.30	0.10	As rolled
240WDD	0.22	1.60	0.50	0.040	0.040	0.10	0.10	0.10	0.10	0.35	0.30	0.30	0.10	Normalised
300WA	0.22	1.60	0.50	0.040	0.050	0.03	0.03	0.04	0.10	0.35	0.30	0.30	0.10	As rolled
300WC	0.22	1.60	0.50	0.040	0.050	0.03	0.03	0.04	0.10	0.35	0.30	0.30	0.10	As rolled
300WDD	0.22	1.60	0.50	0.040	0.040	0.10	0.10	0.10	0.10	0.35	0.30	0.30	0.10	Normalised
350WA	0.22	1.60	0.50	0.040	0.040	0.10	0.10	0.10	0.10	0.35	0.30	0.30	0.10	As rolled
350WC	0.22	1.60	0.50	0.040	0.040	0.10	0.10	0.10	0.10	0.35	0.30	0.30	0.10	As rolled < 16 mm thick闂備胶鍘у畷顒勫焵椤掑倸鏋嶉弶鈺冾剼u003cbr /> Normalised3)闂備浇澹堟禍顒傜矈缁?03cbr /> > 16mm
350WDD	0.22	1.60	0.50	0.040	0.040	0.10	0.10	0.10	0.10	0.35	0.30	0.30	0.10	Normalised

SABS / SANS 1431 steel material reference

TABLE 2闂?闂備浇澹堟禍顒傜矈绾剧€檌cal chemical composition
Chemical composition
Grade	C1)	Si	Mn2)	P闂備浇澹堟禍顒傜矈缁?03cbr /> (max)	S3)闂備浇澹堟禍顒傜矈缁?03cbr /> (max)	Al	Nb	V	N
240WA	0.12	0.254)	1.0	0.020	0.030	0.035	-	-	-
240WC	0.12	0.254)	1.0	0.020	0.030	0.035	-	-	-
240WDD	0.12	0.25	1.0	0.020	0.030	0.035	-	-	-
300WA	0.18	0.354)	1.35	0.020	0.030	0.035	-	-	-
300WC	0.18	0.354)	1.35	0.020	0.030	0.035	-	-	-
300WDD	0.18	0.35	1.35	0.020	0.030	0.035	-	-	-
350WA	0.15	0.35	1.25	0.020	0.030	0.035	0.028	-	-
350WC	0.15	0.35	1.25	0.020	0.030	0.035	0.028	-	-
350WDD	0.15	0.35	1.25	0.020	0.030	0.035	0.028	-	-

SABS / SANS 1431 steel material reference

TABLE 3 - Mechanical properties as specified in SABS 1431 - 1987:闂?Table 5
Grade	Tensile闂備浇澹堟禍顒傜矈缁?03cbr /> strength闂備浇澹堟禍顒傜矈缁?03cbr /> (MPa)	Min yield strength (MPa) for thickness t (mm)				Elongation % (min) on gauge length of			Charpy V-notch impact test
Grade		3<t<16	16<t<40	40<t<63	63<t<80	50 mm	200 mm	5.65 So	Avrage闂備浇澹堟禍顒傜矈缁?03cbr /> impact闂備浇澹堟禍顒傜矈缁?03cbr /> resistance J (min)	Test闂備浇澹堟禍顒傜矈缁?03cbr /> Tempe-闂備浇澹堟禍顒傜矈缁?03cbr /> rature闂備浇澹堟禍顒傜矈缁?03cbr /> (oC)	Thickness闂備浇澹堟禍顒傜矈缁?03cbr /> (max)闂備浇澹堟禍顒傜矈缁?03cbr /> (mm)
240WA	380/510	240	240	230	220	28	20	22	-	-	-
240WC	380/510	240	240	230	220	28	20	22	27	0	80
240WDD	380/510	240	240	230	220	28	20	22	27	-30	80
300WA	450/620	300	300	290	280	24	20	22	-	-	-
300WC	450/620	300	300	290	280	24	20	22	27	0	63
300WDD	450/620	300	300	290	280	24	20	22	27	-30	63
350WA	480/650	350	350	340	325	22	18	20	-	-	-
350WC	480/650	350	350	340	325	22	18	20	27	0	80
350WDD	480/650	350	350	340	325	22	18	20	27	-30	80

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SABS / SANS 1431 STEEL MATERIAL SPECIFICATIONS