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Welding grades

International steel Nos.			Typical chemical composition %						National steel designations (superseded by EN)
EN	ASTM		C	N	Cr	Ni	Mo	Other	BS/UK	DIN/Germany	NF/France
1.4370			.08	.05	19.0	8.5	-	Mn	307S98	1.4370	Z8CNMS19.09.07
1.4332	309S		.02	.05	23.5	13.5	-	-	307S92/93	1.4332	Z3CNS24.14
1.4842	310S		.08	.04	25.5	20.5	-	-	310S94	1.4842	Z12CN26.21
1.4876			.04	.03	19.0	11.5	2.7	Nb	318S97	1.4576	Z4CNDSNb19.12.03

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