Materials & Grades

Special Alloys

If you require an alloy that is not listed below please contact us...

Steels for Mildly Corrosive Environments: 13 Chromium and Chromium Nickel Molybdenum

Ferritic mildly corrosive resistant steel with wide ranging applications. The 0.15%C, 13%CR, 1%Mo version has lower strength, toughness and poorer weldability.

• Typical Specifications: BS3100 410C21, 420C29, 425C11, ASTM A743: CA15, CA6NM, DIN/EN:GX4CrNi13-4
• Properties & Heat treatment: Normalised and tempered or oil quenched and tempered.
• Weldability: Good

	C	Si	Mn	S	P	Cr	Ni	Mo	Other	Yield MPa	UTS MPa	Charpy impacts J@0°C
Typical	0.04	0.35	0.6	0.02	0.025	13	4.00	0.35	-	550	755	35J

Stainless Steels Corrosive Environments.

A wide range of alloy compositions exist to suit particular service environments and engineering requirements. Duplex steels offer a combination of corrosion resistance and higher strength levels. Predominantly austenitic steels are required for severe service environments.

• Typical Specifications: Type 304 and 316 and Duplex steels. ASTM A743 CF8/CF8M, ASTM A890 grades.
• Properties & Heat treatment: Solution treat and quenched. Particulars depend on composition.
• Weldability: Generally good when microstructures contain small amounts of ferrite.

	C	Si	Mn	S	P	Cr	Ni	Mo	Other	Yield MPa	UTS MPa	Charpy impacts J@20°C
Typical	0.06	0.75	0.7	0.04	0.040	18	8.00	0.35	-	205	485	-
Typical						19	9.00	2.50
Typical						25	5.00	2.00	Cu, N

Steels for General Engineering: Plain Carbon & Carbon Manganese

Higher carbon contents provide greater strength but lower toughness. Lower carbon quenced and tempered versions provide a good combination of strength and toughness. Strengths and low temperature toughness can be improved with alloying additions. Low carbon NiMo grades for offshore applications offer good weldability and Charpys at -40°C

• Typical Specifications: BS3100, A1:A2:A3:A4:A5:A6, ASTM A27, A216WCB, WCC, A148 70-40 and 80-50, ASTM A352 LCA, LCB, LCC, DIN/EN GS52, GS20 Mn5, GS24Mn6V
• Properties & Heat treatment: Normalised or quenched and tempered.
• Weldability: C <0.25% for good weldability, Higher C contents weldable with care and good control of preheat and PWHT.

C

Si

Mn

S

P

Cr

Ni

Mo

Other

Yield MPa

UTS MPa

UTS MPa

Typical

0.25

0.35

1.5

0.04

0.025

Residual

-

300

520

520

 

International Specifications Equivalent to EN 1563:1997

Mechanical properties as measured on separately cast test bars.

Material Designation EN 1563		UK BS 2789 1985	Germany DIN 1693 1973	Netherlands NEN 6002-D 1966	Italy UNI 4544 1979	Sweden SS 1407 1981	USA ASTM A536 1993	international ISO 1083 1987
Symbol	Number
EN-GJS 350-22	EN JS1010	350-22						350-22
EN-GJS 350-22LT	EN JS1015	350-22L40	GGG 35.3	GN 38	GS 370-17	17-15		350-22L
EN-GJS 400-18	EN JS1020	400-18		GN 42			60-40-18	400-18
EN-GJS 400-18LT	EN JS1025	100-18L20	GGG 40.3			17-02		400-18L
EN-GJS 400-15	EN JS1030	420-12	GGG 40		GS 400-12	17-00	65-45-12	400-15
EN-GJS 450-10	EN JS1040	450-10					70-50-05	450-10
EN-GJS 500-7	EN JS1050	500-7	GGG 50	GN50	GS 500-7	27-02	80-55-06	500-7
EN-GJS 600-3	EN JS1060	600-3	GGG 60	GN60	GS 600-3	32-03	100-70-03	600-3
EN-GJS 700-2	EN JS1070	700-2	GGG 70	GN70	GS 700-2	37-01		700-2
EN-GJS 800-2	EN JS1080	800-2	GGG 80	GN80	GS 800-2		120-90-02	800-2
EN-GJS 900-2	EN JS1090	900-2						900-2