Stainless Steel

Master Metal offers a wide range of Stainless Steel products known for their excellent corrosion resistance, strength, and versatility. We supply grades including 304, 304L, 316, 316L, 310, 321, 347, 904L, and 17-4PH, suitable for both general and critical applications. Stainless steel is ideal for industries such as oil & gas, chemical, food processing, marine, and construction due to its durability and hygienic properties. Our stainless steel is available in multiple forms—pipes, tubes, sheets, plates, coils, bars, and fittings—all meeting ASTM, ASME, and EN standards. With precise composition and quality assurance, Master Metal delivers stainless steel solutions that perform in the most demanding environments.

Standard	Specification Numbers
ASTM	A312, A376, A358, A269, A249, A403, A182, A351
ASME	SA312, SA376, SA358, SA269, SA249, SA403, SA182, SA351

Grade	C	Cr	Ni	Mo	Others
304	0.08	18.0 ~ 20.0	8.00 ~ 10.50	-	-
304L	~0.030	18.0 ~ 20.0	9.00 ~ 13.00	-	-
310S	~0.08	24.0 ~ 26.0	19.0 ~ 22.0	-	-
316	~0.08	16.0 ~ 18.0	10.0 ~ 14.0	2.00 ~ 3.00	-
316L	~0.08	16.0 ~ 18.0	12.0 ~ 15.0	2.00 ~ 3.00	-
316Ti	0.08	16.0 ~ 18.0	10.0 ~ 14.0	2.00 ~ 3.00	Ti 5xC% ~
317L	0.03	18.0 ~ 22.0	11.0 ~ 15.0	3.00 ~ 4.00	-
321	~0.08	17.0 ~ 19.0	9.00 ~ 13.0	-	Ti 5xC% ~
347	0.08	17.0 ~ 19.0	9.00 ~ 13.0	-	Nb 10xC% ~

Grade	Yield Strength (0.2%) (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Hardness (Hv)
304	205~	520~	40~	~200
304L	175~	480~	40~	~200
310S	205~	520~	40~	~200
316	205~	520~	40~	~200
316L	175~	480~	40~	~200
316Ti	205~	520~	40~	~200
317L	175~	480~	40~	~200
321	205~	520~	40~	~200
347	205~	520~	40~	~200

Grade	Specific Heat (J/g °C)	Specific Gravity	Thermal Expansion Coefficient (W/m·°C, 20–100°C)	Thermal Conductivity (W/m·°C, 100°C)
304	0.50	7.93	17.3	16.3
304L	0.50	7.93	17.3	16.3
310S	0.50	7.98	15.9	14.2
316	0.50	7.98	15.9	16.3
316L	0.50	7.98	15.9	16.3
316Ti	0.50	7.98	15.9	16.3
317L	0.486	7.98	16.5	14.4
321	0.50	7.93	16.7	16.1
347	0.50	7.98	16.7	16.1