High Strength Low Alloy Steel Phaj

High Strength Low Alloy Steel Phaj

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GNEE STEEL txaus siab muab HSLA steel phaj, feem ntau yog siv steel phaj, kom paub meej cov neeg siv khoom tshwj xeeb thoob plaws nws cov ceg ntoo.

 

GNEE Steel nqa cov khoom sib sib zog nqus ntawm cov pa roj carbon - lossis me - steel phaj nrog rau High Strength Low Alloy - lossis HSLA - steel phaj. HSLA boasts lub zog ntau dua, qhov hnyav dua thiab zoo machinability thiab ductility piv rau cov pa roj carbon me me qib.

 

HSLA steels yog tsim los ua kom tau raws li cov khoom siv tshwj xeeb, xws li hardness, lub zog, corrosion kuj thiab ib puag ncig zoo, ua rau HSLA steels yog qhov kev xaiv zoo tshaj plaws rau kev tsim kho xws li tsheb thav duab, brackets, crane booms, tsheb ciav hlau thiab lwm yam kev siv sib piv. Thaum muaj ntawv pov thawj HSLA steel qib muaj cov tshuaj lom neeg tshwj xeeb, cov kws ua haujlwm xa mus rau HSLA cov khoom siv tshuaj lom neeg thaum xaiv cov khoom siv rau ib qhov project tshwj xeeb.

 

High-lub zog qis- alloy steel (HSLA) los ntawm GNEE Steel muaj kev sib xyaw ua ke ntawm lub zog, kev tsim thiab kev sib txuas los txhawb kev txo qhov hnyav hauv cov tsheb loj.

 

NTA

High-lub zog qis- alloy steel (HSLA) cov khoom muaj kev sib xyaw ua ke zoo ntawm kev tsim thiab weldability, muab kev ua kom muaj zog ntxiv los ntawm kev sib ntxiv ntawm cov khoom me me ntawm cov khoom sib txuas. US Steel engineers tuaj yeem pab nrog kev xav zoo- tawm qauv tsim uas siv HSLA los qhib qhov muaj peev xwm tshiab rau kev txo qis thiab lwm yam txiaj ntsig hauv qhov nyuaj ntawm feem ntau cov ntawv thov tsheb.

• Weldability-welding yam ntxwv zoo
• Kev ua haujlwm qaug zog- siab- lub zog steels muaj qhov ua tau zoo rau kev qaug zog vim lawv cov txiaj ntsig zoo, ua rau HSLA yog ib tus neeg sib tw zoo rau kev ua haujlwm ntev - cov khoom rhiab heev
• Kev kho hniav - cov yam ntxwv zoo denting. Yog xav paub ntxiv, thov mus saib peb cov hniav -cov hlau tsis kam
• Cov ntawv thov -HSLA cov ntaub ntawv feem ntau pom muaj nyob rau ntawm cov qauv ntawm lub tsheb, vim tias feem ntau HSLA cov ntaub ntawv muaj cov yam ntxwv ntawm kev tsim muaj tsawg heev. Cov ntaub ntawv muaj nyob rau ntawm rocker inners, b / c pillar reinforcements thiab cov tswvcuab ntoo khaub lig

 

Txuj	Steel Qib (Nyem Qib kom paub meej ntxiv)
ASTM A36 / A36M / ASTM A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36) thiab ASTM A36	A36
ASTM A283 / ASTM A283M / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283 / ASTM A283) thiab ASTM A283	A283 Qib A	A283 Qib B	A283 Qib C	A283 Qib D
ASTM A514/A514M	A514 Qib A	A514 Qib B	A514 Qib C	A514 Qib E
	A514 Qib F	A514 Qib H	A514 Qib J	A514 Qib K
	A514 Qib M	A514 Qib P	A514 Qib Q	A514 Qib R
	A514 Qib S	A514 Qib T
ASTM A572/A572M	A572 Qib 42	A572 Qib 50	A572 Qib 55	A572 Qib 60
	A572 Qib 65
ASTM A573 / A573M / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573 / ASTM A573) thiab ASTM A573	A573 Qib 58	A573 qib 65	A573 Qib 70
ASTM A588 / A588M Kev Cai	A588 Qib A	A588 Qib B	A588 Qib C	A588 Qib K
ASTM A633 / A633M / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / A633M / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633 / ASTM A633) thiab ASTM A633	A633 Qib A	A633 Qib C	A633 Qib D	A633 Qib E
ASTM A656/A656M	A656 Qib 50	A656 Qib 60	A656 Qib 70	A656 Qib 80
ASTM A709 / A709M / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / A709M / ASTM A709 / ASTM A709 / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / ASTM A709 / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M) thiab ASTM A709 / A709M	A709 qib 36	A709 Qib 50	A709 Qib 50S	A709 Qib 50W
	A709 Qib HPS50W	A709 Qib HPS70W	A709 Qib 100	A709 Qib 100W
	A709 Qib HPS100W
ASME SA36/SA36M	SIB 36
ASME SA283/SA283M	SA283 Qib A	SA283 Qib B	SA283 Qib C	SA283 Qib D
ASME SA514/SA514M	SA514 Qib A	SA514 Qib B	SA514 Qib C	SA514 Qib E
	SA514 Qib F	SA514 Qib H	SA514 Qib J	SA514 Qib K
	SA514 Qib M	SA514 Qib P	SA514 Qib Q	SA514 Qib R
	SA514 Qib S	SA514 Qib T
ASME SA572/SA572M	SA572 Qib 42	SA572 Qib 50	SA572 Qib 55	SA572 Qib 60
	SA572 Qib 65
ASME SA573/SA573M	SA573 qib 58	SA573 Qib 65	SA573 Qib 70
ASME SA588/SA588M	SA588 Qib A	SA588 Qib B	SA588 Qib C	SA588 Qib K
ASME SA633/SA633M	SA633 Qib A	SA633 Qib C	SA633 Qib D	SA633 Qib E
ASME SA656/SA656M	SA656 Qib 50	SA656 Qib 60	SA656 Qib 70	SA656 Qib 80
ASME SA709/SA709M	SA709 qib 36	SA709 Qib 50	SA709 Qib 50S	SA709 Qib 50W
	SA709 Qib HPS50W	SA709 Qib HPS70W	SA709 Qib 100	SA709 Qib 100W
	SA709 Qib HPS100W
TS EN 10025-2	S235 JR	S235J0	S235J2
	S275 JR	S275J0	S275J2
	S355 JR	S355J0	S355J2	S355K2
	S420J0
TS EN 10025-3	S275N	S275 NL	S355N	S355 NL
	S420N	S420 NL	S460N	S460 NL
TS EN 10025-4	S275M	S275ML	S355M	S355ML
	S420M	S420ML	S460M	S460ML
TS EN 10025-6	S460Q	S460 qw	S460 QL 1
	S500Q	S500 QL	S500QL1
	S550Q	S500 QL	S500QL1
	S620Q	S620 qw	S620 QL 1
	S690Q	S690 qw	S690 QL 1
	S890Q	S890 qw	S890QL 1
	S960Q	s960 qw
JIS G3101	SIB 330	SIB 400	SIB 490	SIB 540
JIS G3106	Qauv: SM400A	SWB 400B	SM 400 C
	SWB 490A	SWB 490B	SWB 490C	SWB 490YA
	SM490 YB	SWB 520B	SM520C ua	SIB 570
TIAB SA 17100	St33	Qhov 37-2	Peb 37-2	TSW 37-2
	Qhov 37-3	TSI 52-3
TIAB SA 17102	TSI 255	NWS 255	TSI 255	TIAB SA 255
	TSI 285	TSW 285	TSI 285	TIAB SA 285
	TSI 315	NWS 315	TSI 315	TIAB SA 315
	TSI 355	NWS 355	TSI 355	TIAB SA 355
	TSI 380	NWS 380	TSI 380	TIAB SA 380
	TSI 420	NWS 420	TSI 420	TIAB SA 420
	TSI 460	NWS 460	TSI 460	TIAB SA 460
	STE 500	NWS 500	TSI 500	TSI 500
GB / T700	Q235A	Q235B	Q235C	Q235D
	Q275
GB/T1591	Q345A	Q345B	Q345C	Q345D
	Q345E
	Q390A	Q390B	Q390C	Q390D
	Q390E
	Q420A	Q420B	Q420C	Q420D
	Q420E
	Q460C	Q460D	Q460E
GB / T16270	Q460C 32	Q460D 31	Q460E 30	Q460F
	Q500C	Q500D	Q500E	Q500F
	Q550C	Q550D	Q550E	Q550F
	Q620C	Q620D	Q620E	Q620F
	Q690C	Q690D	Q690E	Q690F
	Q800C 12	Q800D 11	Q800E 10	Q800F 9
	Q890C 8	Q890D 7	Q890E 6	Q890F 5
	Q960C 4	Q960D 3	Q960E 2	Q960F 1

 

 

Mechanical Properties A572 Gr 42:

Tensile:

60 kwm

Yield:

42 kwm

Elongation:

18% min hauv 8 "22% min hauv 2" (rau cov phaj dav dua 24")

 

Mechanical Properties A572 Gr 50:

Tensile:

65 kwm

Yield:

50 kwm

Elongation:

16% min hauv 8 "19% min hauv 2" (rau cov phaj dav dua 24")

 

Mechanical Properties A572 Gr 55:

Tensile:

70 kwm

Yield:

55 kwm

Elongation:

15% min hauv 8 "18% min hauv 2" (rau cov phaj dav dua 24")

 

Mechanical Properties A572 Gr 60:

Tensile:

75 kwm

Yield:

60 kwm

Elongation:

13% min hauv 8 "15% min hauv 2" (rau cov phaj dav dua 24")

 

Mechanical Properties A572 Gr 65:

Tensile:

80 kwm

Yield:

65 kwm

Elongation:

12% min hauv 8 "14% min hauv 2" (rau cov phaj dav dua 24")

 

 

QIB	GAUGE (INCHES)	WIDTH (INCHES)	LENGTH (INCHES)
A572	0.1875	96	240/480
A572	0.2500	60/96/120	240/480
A572	0.3125	60/96/120	240/480
A572	0.3750	60/96/120	240/480
A572	0.5000	60/96/120	240/480
A572	0.6250	60/96/120	240/480
A572	0.7500	60/96/120	240/480
A572	0.8750	60/96/120	240/480
A572	1.0000	60/96/120	240/480
A572	1.1250	60/96/120	240/480
A572	1.2500	60/96/120	240/480
A572	1.5000	60/96/120	240/480
A572	1.7500	60/96/120	240/480
A572	2.0000	60/96/120	240/480
A572	2.2500	96	240/480
A572	2.5000	96	240/480
A572	2.7500	96	240/480
A572	3.0000	96	240/480
A572	3.2500	96	240
A572	3.5000	96	240
A572	3.7500	96	240
A572	4.0000	96	240
A572	5.0000	96	240
A572	6.0000	96	240

 

Dab tsi yog cov txiaj ntsig tseem ceeb ntawm HSLA Steel?

HSLA steel muaj ntau cov txiaj ntsig tseem ceeb rau kev tsim kho. Cov txiaj ntsig tseem ceeb thiab cov khoom ntawm HSLA steel muaj xws li:

Siab zog:HSLA steel yog suav tias yog muaj zog dua li cov pa roj carbon steel ua tsaug rau qhov sib ntxiv ntawm qee yam alloying ntsiab lus. Cov ntsiab lus no txhim kho nws lub zog thiab hardness, raws li cov hlau atoms pab tiv thaiv kev txav txav ntawm cov hlau micro- qauv.

Lub teeb yuag khoom:Lub zog siab qis- alloy steel yog qhov hnyav heev. Nws ntxiv kev ruaj khov ruaj khov rau cov qauv yam tsis muaj lub nra hnyav ntxiv.

Txhim kho toughness:Qhov sib ntxiv ntawm cov hlau alloying xws li silicon, nickel, molybdenum thiab vanadium tsim cov khoom siv hlau ultra- muaj zog.

Corrosion kuj:Tshwj xeeb tsim HSLA steels muaj xws li alloying ntsiab xws li npib tsib xee, chromium thiab tooj liab. Cov ntsiab lus no txhim kho lawv cov kev tiv thaiv corrosion, tiv thaiv kev tsim ntawm xeb. ? Tus nqi -kev ua tau zoo. HSLA steel tus nqi qis tau ua rau nws tau siv dav hauv kev tsim vaj tsev, txuas hniav, thiab ntau yam ntawm lwm cov qauv tsim.

 

Dab tsi yog daim ntawv thov ntawm HSLA steel?

HSLA steels muaj nuj nqis thoob plaws ntau qhov kev lag luam thiab kev lag luam rau lawv cov nqi kev ua haujlwm thiab lub zog tseem ceeb rau qhov hnyav piv. Lawv daim ntawv thov muaj xws li kev tsim kho mus rau kev tsim tsheb, kev tsim hluav taws xob, thiab kev siv hauv kev lag luam.

Hauv kev tsim kho, cov hlau no yog siv los tsim cov skyscrapers uas muaj zog thiab ruaj khov, txuas hniav, thiab lwm yam khoom siv. Automotive manufacturers siv HSLA steel los tsim lub teeb yuag tsheb uas sib xyaw kom muaj kev nyab xeeb nrog cov roj zoo heev.

Kev lag luam kev lag luam siv lub zog siab qis- alloy steel los ua khoom siv hauv kev lag luam thiab kev ua liaj ua teb thiab cov tshuab hnyav, kom ntseeg tau tias cov cuab yeej siv no ua tau zoo hauv kev xav tau thaum tseem hnyav txaus los siv tau zoo. Ntau lub tuam txhab hluav taws xob siv nws los tsim cov roj thiab cov kav dej, cua turbines, thiab lwm yam khoom siv hluav taws xob vim nws qhov corrosion kuj.

 

Dab tsi yog qib sib txawv ntawm HSLA steel?

HSLA steel qib sib txawv, thiab txhua qib muab cov khoom tshwj xeeb uas ua rau nws haum rau cov kev siv tshwj xeeb thiab kev xav tau kev ua haujlwm. Qee qhov tseem ceeb HSLA steel qib suav nrog ASTM A36 rau kev siv dav dav, ASTM A572 rau vuam, ASTM A588 rau kev siv cua sov steel, thiab ASTM A656 rau kev tsim khoom.

ASTM A36 yog ib qho ntawm cov qauv nrov tshaj plaws ntawm HSLA steel muaj. Pom tau tias yog ib qho kev daws teeb meem dav dav, cov hlau no yog tus nqi -ntau, machinable, thiab tag nrho weldable. Cov khoom no ua rau nws xaiv rau ntau yam kev siv.

ASTM A572 yog ib hom hlau ntau yam uas tseem tuaj yeem ua tau thiab tsim tau, ua rau nws tsim nyog siv rau hauv kev tsim kho cov choj thiab cov tsev. Nws los nyob rau hauv ntau yam ntawm cov qib zog thiab. ASTM A588 yog ib qho kev tiv thaiv zoo heev -corrosive thiab yog dav siv nyob rau hauv weathering steel daim ntaub ntawv uas tsis yuav tsum tau siv cov txheej tiv thaiv, xws li txuas hniav thiab cua turbines.

ASTM A656 yog cov tawv tawv thiab ruaj khov thiab nquag siv hauv kev xav tau cov haujlwm rau kev tsim khoom siv, HSLA steel tubing, thiab thauj khoom -cov kabmob tsheb thav duab.

 

Vim li cas thiaj xaiv GNEE STEEL rau HSLA steel?

GNEE STEEL muaj kev paub dhau los hauv kev pabcuam kev lag luam steel thiab muaj ntau yam kev xaiv ntawm siab - zoo HSLA steel khoom kom tau raws li ntau yam kev xav tau ntawm kev lag luam. Peb cov HSLA steel ua tau raws li cov ntawv pov thawj nruj xws li EN 10025-6 S690 QL, NAXTRA M70, ALDUR 700 thiab DOME X 690. Cov qauv no ua kom muaj qhov tshwj xeeb thiab kev ua tau zoo, txawm tias nyob rau hauv kev xav tau.

 

Peb lub zog siab qis- alloy steels kuj tseem qis heev - ntsuas kub ntawm -40, -45, thiab -60 degrees, thiab muab cov txiaj ntsig zoo tshaj plaws ntawm 65Ksi thiab 100Ksi. Tsis tas li ntawd, tag nrho peb cov seem steel thiab daim hlau muaj nyob rau hauv ob qho tib si tsis yog tus qauv thiab cov qauv loj, yog cov weldable tag nrho, thiab tuaj yeem txiav thiab profiled raws li koj cov specifications.

 

High Strength, Low Alloy (HSLA) steel tau siv dav hauv cov txuas hniav, cov tsev, cov hlab ntsha siab, thiab lwm yam kev tsim vaj tsev vim nws cov khoom siv zoo heev thiab cov nqi qis.

Peb cov HSLA steel tau qis- qhov kub thiab txias raug kuaj ntawm -40, -45, thiab -60 degrees celsius thiab muaj qhov tawm los ntawm 65Ksi - 100Ksi.

Specifications

EN 10025-6 S690 QL

NAXTRA M70 & ALDUR 700 & DOME X 690

Stock Sizes yog raws li cov lus hauv qab no:

Thickness (hli)	Length x Dav (mm)	Length x Dav (mm)	kg/m²
3	6000 x 1250		23.55
4	6000 x 1300		31.40
5	6000 x 1600		39.25
6	6000 x 2000	10000 x 2000	47.10
8	12000 x 2000	12000 x 2500	62.80
10	12000 x 2000	12000 x 2500	78.50
12	12000 x 2000	12000 x 2500	94.20
12.5	12000 x 2000	12000 x 2500	98.13
15	12000 x 2000	12000 x 2500	117.75
20	12000 x 2000	12000 x 2500	157.00
25	12000 x 2000	12000 x 2500	196.25
30	12000 x 2000	12000 x 2500	235.50
35	12000 x 2000	12000 x 2500	274.75
40	12000 x 2000	12000 x 2500	314.00
50	12000 x 2000	12000 x 2500	392.50
60	12000 x 2000	12000 x 2500	471.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dab tsi yog qhov txawv ntawm HSLA steel phaj?

Muaj 6 hom HSLA steel phaj:

• Huab cua steels muaj kev tiv thaiv corrosion zoo dua.
• Tswj- dov steels yog kub- dov steels nrog ib tug deformed austenite qauv uas, thaum txias, hloov mus rau hauv ib tug zoo equiaxed ferrite qauv.
• Pearlite- txo cov hlau yog cov hlau tsis muaj cov pa roj carbon tsawg uas ua rau me me kom tsis muaj pearlite. Hloov chaw, lawv muaj cov hmoov zoo ferrite matrix.
• Acicular ferrite steels yog cov pa roj carbon tsawg heev nrog rau qhov zoo siab -lub zog acicular ferrite qauv.
• Dual-theem steels yog cov hlau uas muaj ferrite microstructure uas suav nrog me me, tsis tu ncua qhov chaw ntawm martensite. Martensite microstructure muab lub dual-theem steel ua ke ntawm kev tsim tau zoo, ua haujlwm siab tawv, thiab qis- tawm lub zog.
• Microalloyed steels yog steels nrog me me ntxiv ntawm vanadium, niobium, thiab / los yog titanium, ntxiv los pab kho cov nplej loj los yog nag lossis daus hardening, los yog ob qho tib si.

Resistance rau Atmospheric Corrosion

Sib npaug ntawm Carbon Steels

Xim Marking: Xim av thiab Txiv kab ntxwv
Specifications:

ASTM A 572 Qib 50 (Plates)

SAE J410 Qib 950X (Cov Ntawv, Phaj)

 

Resistance rau Atmospheric Corrosion

Ob npaug ntawm Carbon Steels

Xim Marking: Liab thiab Dawb
Specifications:

ASTM A606 Hom 2 (Cov Ntawv)

SAE J410 Qib 950B (Cov Ntawv, Phaj)

Resistance rau Atmospheric Corrosion

Plaub zaug uas Carbon Steels
Xim Marking: Kub thiab Liab
Specifications:

ASTM A242 Hom 1 (Plates)

A588 (Pib)

A606 Hom 4 (Daim ntawv)

SAE J410 Qib 950D (Cov Ntawv, Phaj)

 

Puas yog HSLA steel phaj suav tias yog kev tsim kho steel phaj?

HSLA steel daim hlau yog engineered los muab cov khoom siv kho kom zoo dua qub thiab ua haujlwm zoo dua rau atmospheric corrosion dua li cov pa roj carbon steel. Cov yam ntxwv no ua rau lawv zoo - haum raws li kev tsim kho steel phaj.

 

Cov khoom tseem ceeb muaj feem xyuam rau kev tsim kho

Lub zog siab -rau- qhov hnyav piv: Txo cov khoom siv yam tsis muaj kev cuam tshuam cov qauv kev ncaj ncees.

Zoo weldability thiab formability: Tso cai yooj yim fabrication ntawm cov qauv.

Toughness thiab durability: tuaj yeem tiv taus hnyav thiab hnyav.

Corrosion resistance: Nws yog ib qho tseem ceeb rau lub neej ntev, tshwj xeeb tshaj yog nyob rau hauv cov txuas hniav thiab cov qauv raug.

 

Kev siv yam tsim nyog

Cov kab teeb thiab kab

Kev tsim kho choj

Cov tsev thiab siab - nce

cranes thiab cov cuab yeej hnyav

Earthmoving khoom thav duab

Steel ncej thiab kev txhawb zog

 

Common Construction Steel Phaj Qib

ASTM A572 (Qib 50, 60)

ASTM A709 (siv hauv cov choj)

ASTM A588 (ntaus atmospheric resistance)

 

 

 

 

 

 

Peb cov khoom tau dhau los ua qhov zoo nruj thiab tuaj nrog cov ntawv pov thawj kev tshaj lij. Yog tias koj muaj lus nug txog High Strength Low Alloy Steel Phaj, thov koj xav tshuaj xyuas.

 

Cim npe nrov: High Strength Low Alloy Steel Phaj, Tuam Tshoj High Strength Low Alloy Steel Phaj manufacturers, lwm tus neeg, Hoobkas