Materials

The Materials(Metal and Alloy) we used in investment casting

GL Metal’s investment casting foundry stands out for its exceptional capability to cater to a diverse array of alloys, adhering to stringent designations and specifications outlined by industry standards such as ASTM, SAE, AISI, ACI, DIN, GOST, EN, ISO, and GB. With a repertoire of over 100 ferrous and non-ferrous alloys, we specialize in casting parts featuring intricate design structures.

Our expertise covers a broad spectrum of materials, including:

  • Gray Cast Iron: HT150 ~ HT350; EN-GJL-100, EN-GJL-150, EN-GJL-200, EN-GJL-250, EN-GJL-300, EN-GJL-350; GG10, GG15, GG20, GG25, GG30, GG40.
  • Ductile Cast Iron (Nodular Iron): GGG40, GGG45, GGG50, GGG60, GGG70, GGG80; EN-GJS-400-18, EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2, EN-GJS-800-2.
  • Carbon Steel: AISI 1020 ~ AISI 1060, WCA, WCB, WCC, C30, C40, C45.
  • Alloy Steel: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo, etc.
  • Stainless Steel: 304, 304L, 316, 316L, 1.4401, 1.4408, 1.4301, 1.4305, 1.4307, 1.4404, 1.4571, and more.
  • Duplex Stainless Steel (DSS) and Precipitation Hardening (PH) Stainless Steel
  • Brass, Bronze, and other Copper-based Alloys
  • Nickel Based Alloy: Inconel 625, Inconel 713, Inconel 718, etc., Cobalt Based Alloys
  • Corrosion-resistant Steel, Seawater-resistant Steel, High-temperature Steel, High-tensile Steel, Duplex Stainless Steel.

Our commitment extends to accommodating specific requests and adhering to additional alloys in accordance with ASTM, SAE, AISI, GOST, DIN, EN, ISO, and GB standards. At GL Metal, we pride ourselves on delivering precision and quality across an extensive range of metal casting solutions.

2. Stainless Steel

Austenitic Stainless Steel (300 Series Stainless Steel)
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
301 515 MPa
(75 Ksi)		 871 °C
(1600 °F)		 1399-1421°C
(2550-2590°F)		 Excellent corrosion resistance
302 585 MPa
(85 Ksi)		 870˚C
(1,679˚F)		 1400-1420 °C
(2550-2590 °F)		 Excellent corrosion resistance
303 690 MPa
( 100 Ksi)		 760˚C
(1,400˚F)		 1400-1420 °C
(2550-2590 °F)		 Lower corrosion resistance
304 621 MPa
(90 Ksi)		 870˚C
(1,679˚F)		 1,399 – 1,454˚C
(2,550 – 2,650˚F)		 CF8/1.4308/
304L 621 MPa
(90 Ksi)		 870˚C
(1,679˚F)		 1,399 – 1,454˚C
(2,550 – 2,650˚F)		 CF3
309 620 MPa
(89 Ksi)		 1000˚C
(1,832˚F)		 1400-1455 °C
(2550-2651 °F)		 Excellent corrosion resistance
316 579 MPa
(84 ksi)		 ~800˚C
(1,472˚F)		 1,371 – 1,399˚C
(2,500 – 2,550˚F)		 CF8M/1.4408
316L 579 MPa
(84 ksi)		 ~800˚C
(1,472˚F)		 1,371 – 1,399˚C
(2,500 – 2,550˚F)		 CF3M
317 585 MPa
( 85 Ksi)		 816˚C
(1,500˚F)		 1,370 – 1,400˚C
(2,500 – 2,550˚F)		 Good chloride resistance
321 620 MPa
(90Ksi)		 816˚C
(1,500˚F)		 1,400 – 1,425˚C
(2,550 – 2,600˚F)		 Excellent corrosion resistance
347 690 MPa
(101 Ksi)		 816˚C
(1,500˚F)		 1,400 – 1,425˚C
(2,550 – 2,600˚F)		 Excellent corrosion resistance

 

Ferritic Stainless Steels
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
405 585 MPa
(85Ksi)		 815˚C
(1,499˚F)		 1,480 – 1,530˚C
(2,700 – 2,790˚F)		 Good acid corrosion resistance
408 505 MPa
(73 Ksi)		 815˚C
(1,499˚F)		 1,400 – 1,455˚C
(2,550 – 2,650˚F)		 Resists well against most
oxidizing acids and salt spray
409  448MPa
(65 Ksi)		 815˚C
(1,499˚F)		 1,425 – 1,510˚C
(2,597 – 2,750 F)		 Good corrosion resistance
420  760 – 1702 MPa
(110 – 247 Ksi)		 427˚C
(800˚F)		 1,455 – 1,510˚C
(2,651 – 2,750 F)		 Fairly corrosion resistant
430 450 MPa
(65 ksi)		 815˚C
(1,499˚F)		 1,425 – 1,510˚C
(2,597 – 2750˚F)		 Good nitric acid resistance
434 540 MPa
(78 ksi)		 815˚C
(1,499˚F)		 1,426 – 1,510˚C
(2,600 – 2750˚F)		 Superior pitting resistance
436 459 MPa
(67 Ksi)		 815˚C
(1,499˚F)		 1,425 – 1,510˚C
(2,600 – 2,750˚F)		 Excellent citric and nitric
acid corrosion resistance
442 515-550 MPa
(77 – 80Ksi)		 925-980˚C
(1,700/1,800˚F)		 1,065 – 1,120˚C
(1,950 – 1,120˚F)		 Good corrosion resistance
444 415 MPa
( 60 Ksi)		 950˚C
(1,752˚F)		 1,405 – 1,495˚C
(2,561 – 2,723˚F)		 Good oxidation resistance

 

Martensit Stainless Steels
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
410 500 -1400 MPa
(73 – 203 Ksi)		 650˚C
(1,202˚F)		 1,482 – 1,532˚C
(2,700 – 2,790˚F)		 Good corrosion resistance to
air, water, and some chemicals
410S  444 MPa
(64 Ksi)		 705˚C
(1,300˚F)		 1,482 – 1,532˚C
(2,700 – 2,790˚F)		 Good oxidation resistance
416 517 MPa
(75 Ksi)		 760˚C
(1,400˚F)		 1,480 – 1,530˚C
(2,696 – 2,786˚F)		 Poor Chloride resistance. Good
resistance to acids, alkalis & fresh water
420 1,586 MPa
(230 ksi)		 650˚C
(1,202˚F)		 1,454 – 1,510˚C
(2,649 – 2,750˚F)		 Resistant to mild acids, alkalis,
and water when hardened
440 758 MPa
(110 Ksi)		 760˚C
(1,400˚F)		 1,483˚C
(  2,700˚F)		 Limited corrosion resistance

 

Duplex (Ferritic-Austenitic) Stainless Steels
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
2205 620 MPa
(90 Ksi)		 300˚C
(572˚F)		 1,385 – 1,443˚C
(2,525 – 2,630˚F)		 Excellent corrosion resistance
2304 >600 MPa
(>87 Ksi)		 570˚C
(1058˚F)		 900 – 1,150˚C
(1,650 – 2,100˚F)		 Resistance to corrosion cracking
2507 800 MPa
(116 Ksi)		 300˚C
(572˚F)		 1,350˚C
(2,460˚F)		 Excellent chloride corrosion resistance

 

Precipitation Hardening (PH) Stainless Steels
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
17-4 1103 MPa
(160 Ksi)		 316˚C
(600˚F)		 1,404 – 1,440˚C
(2,560 – 2,625˚F)		 Excellent corrosion resistance
15-5 1380 MPa
(200 Ksi)		 316˚C
(600˚F)		 1,404 – 1,440˚C
(2,560 – 2,625˚F)		 Excellent corrosion resistance

3. Carbon Steel

ASTM A216 Cast Carbon Steel
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
WCA 500 MPa
(73 Ksi)		 400˚C
(700˚F)		 1410 – 1,460˚C
(2,580 – 2,650˚F)		 Excellent corrosion resistance
WCB 570 MPa
(83 Ksi)		 426˚C
(800˚F)		 1410 – 1,460˚C
(2,580 – 2,650˚F)		 Excellent corrosion resistance
WCC 655 MPa
(95 Ksi)		 538˚C
(1000˚F)		 1410 – 1,460˚C
(2,580 – 2,650˚F)		 Excellent corrosion resistance

 

SAE-AISI 1020 steel 
Alloy Tensile Strength Maximum Use Temp Melting Point Resistance
1020 460 MPa
(63 Ksi)		 400˚C
(700˚F)		 1420 – 1,460˚C
(2,590 – 2,650˚F)		 Excellent corrosion resistance
1020 430 MPa
(62 Ksi)		 400˚C
(700˚F)		 1420 – 1,460˚C
(2,590 – 2,650˚F)		 Excellent corrosion resistance