Steel 1335
AISI/SAE 1335 · UNS G13350
1335 (UNS G13350) is a manganese alloy steel in the SAE-AISI 13xx family; manganese content above plain carbon grades gives deeper hardenability without nickel, chromium or molybdenum.
Reference datasheet — 1335 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the N condition
1335 tempers and conditions
1335 is supplied in 12 conditions, soft to hard. N is the default FabDigit quotes; the values on this page are for it.
Compare all 12 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot rolled | Cheapest mill condition for parts that will be fully heat treated after rough machining. | 415 | 690 | 22 | 200 HB | — |
Solution annealed | Softest condition, chosen for deep machining, cold forming or before re-hardening. | 440 | 675 | 26 | 190 HB | — |
NDefault Normalized | Standard stock condition for medium-strength shafts and forgings needing uniform structure and good toughness without Q&T. | 540 | 810 | 23 | 21 HRC | — |
Q&T 650 °C | Softest Q&T level; maximum toughness and machinability where only moderate strength is needed. | 600 | 780 | 23 | 21 HRC | — |
Cold drawn | Pick for tight tolerance, bright finish shafting where higher yield and better chip control are wanted without heat treatment. | 650 | 760 | 12 | 223 HB | — |
Induction hardened | Use when a tough Q&T core must carry the load while journals or splines need 50+ HRC wear resistance. | 820 | 960 | 16 | 55 HRC | 7.5 % IACS |
Q&T 540 °C | Standard tough condition (~30 HRC) for drive shafts and forged levers subject to impact. | 830 | 960 | 18 | 30 HRC | — |
quenched and tempered to hardness band | Common purchase specification for machined shafts and gear blanks bought heat treated to a hardness window. | 830 | 965 | 18 | 30 HRC | — |
Q&T 425 °C | Balanced strength/toughness level used for heavily loaded shafts, spindles and bolts. | 1,080 | 1,180 | 15 | 38 HRC | — |
quenched and tempered to hardness band | Higher-strength purchased condition for wear-loaded pins, sprockets and small shafts in thin sections. | 1,110 | 1,240 | 14 | 40 HRC | — |
Q&T 315 °C | High strength with slightly better ductility than 205 °C temper; avoid this range if temper embrittlement is a concern. | 1,340 | 1,480 | 13 | 45 HRC | — |
Q&T 205 °C | Maximum hardness and strength for wear parts; low ductility and notch sensitivity, rarely used on large sections. | 1,450 | 1,690 | 12 | 49 HRC | — |
What is 1335?
1335 (UNS G13350) is a manganese alloy steel in the SAE-AISI 13xx family; manganese content above plain carbon grades gives deeper hardenability without nickel, chromium or molybdenum. Quenched-and-tempered stock is typically 540 MPa yield, 810 MPa tensile, 23 % elongation and 235 HB (21 HRC), and it is available hot-rolled, annealed, normalized, cold-drawn, induction-hardened and QT to 28–32 or 38–42 HRC for shafts and forgings. Carbon equivalent of about 0.65–0.70 makes welding a preheat-and-temper operation, and there is no corrosion resistance; 4140 is the usual step up when higher hardenability is needed. 1335 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F). 1335 has a yield strength of 540 MPa (78.3 ksi) and a tensile strength of 810 MPa (117 ksi) — stronger than 70% of steel grades. Elongation at break is 23% and the elastic modulus is 205 GPa (29.7 Msi).
What is 1335 used for?
- shafts
- forgings
- medium-strength fasteners
- gears
1335 properties
Typical room-temperature values for 1335-N; bars are the position among steel grades.
Physical3
1335 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
1335 has a yield strength of 540 MPa (78.3 ksi) and a tensile strength of 810 MPa (117 ksi) — stronger than 70% of steel grades. Elongation at break is 23% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
1335 is rated for continuous service to 400°C (752 °F). It conducts heat at 43 W/m·K (24.8 BTU/hr·ft·°F), better than 51% of steel grades. Thermal expansion is 12.2 µm/m·K (6.78 µin/in·°F).
Electrical3
1335 conducts electricity at 8 % IACS, better than 55% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of 1335 takes about 30 MJ of energy and emits 2.2 kg of CO₂ — more than 56% of steel grades. Typical recycled content is 30%.
Manufacturability8
1335's machinability is good (55/100, better than 62% of steel grades); weldability fair (40/100); formability fair (35/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. 1335 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1335
Is 1335 easy to machine?
Machines best annealed or normalized (~190–235 HB) at roughly 60 % of 1212 speed; above 35 HRC use coated carbide, rigid setups and reduced feeds.
Can 1335 be welded?
Carbon equivalent ~0.65–0.70, so preheat 200–300 °C, use low-hydrogen consumables and temper after welding; avoid welding in the fully hardened state.
Can 1335 be formed, bent or molded?
Hot forge 1100–1200 °C and normalize afterwards; cold bending is limited — anneal first and allow generous bend radii.
1335 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| C | 0.33 – 0.38 | 0.36 |
| Mnprimary alloying addition for hardenability | 1.6 – 1.9 | 1.75 |
| Sideoxidizer; not required for some product forms | 0.15 – 0.35 | 0.25 |
| P | ≤ 0.04 | |
| S | ≤ 0.04 | |
| Fe | balance |
What surface finishes work on 1335?
No inherent corrosion resistance: specify phosphate + oil, black oxide, zinc or hard-chrome plating; bake after plating to avoid hydrogen embrittlement above ~1000 MPa.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel 1335 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- G13350
How much does 1335 cost?
1335 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1335 — frequently asked
What is 1335 used for?
1335 is typically used for shafts, forgings, medium-strength fasteners and gears. In short: mn-only alloy hardenability; cheaper than 4140; weldable with preheat.
What is the yield strength of 1335?
1335 has a typical yield strength of 540 MPa (78.3 ksi) and a tensile strength of 810 MPa (117 ksi) — stronger than 70% of steel grades. Strength varies by condition: see the 12 listed tempers.
Is 1335 easy to machine?
Reasonably — machinability is rated good (55/100, better than 62% of steel grades). Machines best annealed or normalized (~190–235 HB) at roughly 60 % of 1212 speed; above 35 HRC use coated carbide, rigid setups and reduced feeds.
Can 1335 be welded?
With care — weldability is rated fair (40/100). Carbon equivalent ~0.65–0.70, so preheat 200–300 °C, use low-hydrogen consumables and temper after welding; avoid welding in the fully hardened state.
What surface finishes work on 1335?
No inherent corrosion resistance: specify phosphate + oil, black oxide, zinc or hard-chrome plating; bake after plating to avoid hydrogen embrittlement above ~1000 MPa.
Can 1335 be formed, bent or molded?
Hot forge 1100–1200 °C and normalize afterwards; cold bending is limited — anneal first and allow generous bend radii.
What is the maximum service temperature of 1335?
1335 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1335-N and 1335-QT205?
N is the default condition — standard stock condition for medium-strength shafts and forgings needing uniform structure and good toughness without Q&T. QT205: maximum hardness and strength for wear parts; low ductility and notch sensitivity, rarely used on large sections. Yield strength is 540 MPa in N versus 1,450 MPa in QT205.
How much does 1335 cost?
1335 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- SAE J404 — Chemical Compositions of SAE Alloy Steels — SAE International (2021)
- ASTM A29/A29M — Steel Bars, Carbon and Alloy, Hot-Wrought — ASTM (2020)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.4 — Heat Treating — ASM International (1991)
- GB/T 3077 (35Mn2 comparable grade) — SAC (2015)
- Mysteel / SMM (2025)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.